Advances in Guidance, Navigation and Control: Proceedings of 2022 International Conference on Guidance, Navigation and Control

✍ Scribed by Liang Yan (editor), Haibin Duan (editor), Yimin Deng (editor)

• Publisher: Springer
• Year: 2023
• Tongue: English
• Leaves: 7455
• Series: Lecture Notes in Electrical Engineering; 845
• Edition: 1st ed. 2023
• Category: Library

✦ Synopsis

This book features the latest theoretical results and techniques in the field of guidance, navigation, and control (GNC) of vehicles and aircrafts. It covers a wide range of topics, including but not limited to, intelligent computing communication and control; new methods of navigation, estimation and tracking; control of multiple moving objects; manned and autonomous unmanned systems; guidance, navigation and control of miniature aircraft; and sensor systems for guidance, navigation and control etc.
Presenting recent advances in the form of illustrations, tables, and text, it also provides detailed information of a number of the studies, to offer readers insights for their own research. In addition, the book addresses fundamental concepts and studies in the development of GNC, making it a valuable resource for both beginners and researchers wanting to further their understanding of guidance, navigation, and control.

✦ Table of Contents

Preface
Contents
A Survey of Relative Motion Dynamics and Control of Distributed Satellite Formation
1 Introduction
2 Dynamics of Distributed Satellite Formation
2.1 Cartesian Coordinate State Representation
2.2 Orbital Element State Representation
3 Control of Distributed Satellite Formation
3.1 Cooperative Control Structure of Distributed Satellite Formation
3.2 Cooperative Control Strategy of Distributed Satellite Formation
3.3 Configuration Capture Control of Distributed Satellite Formation
3.4 Configuration Keeping Control of Distributed Satellite Formation
4 Conclusion and Outlook
4.1 Conclusion
4.2 Outlook
References
Determination Technology and Accuracy Analysis of Configuration Parameters of Ground System Dual Satellite Formation Based on Navigation Data
1 Introduction
2 Accuracy Analysis of Orbit Characteristics of Double Satellites
2.1 Configuration Calculation Method Based on the Mean Orbit Elements
2.2 Calculation Method of Configuration Parameters Based on Inter-satellite Relative Measurement Data
3 Examples Analysis of Determining the Configuration of the Double Satellites Formation
3.1 Long Arc Section Configuration Determination
3.2 Short Arc Section Configuration Determination
3.3 Analysis of Test Results
4 Conclusion
References
UAV Path Planning Based on Improved GWO Algorithm
1 Introduction
2 Problem Description
2.1 Model Path Planning Problem Modeling
2.2 Path Optimization Performance Function
3 Path Planning Based on Improved GWO Algorithm
3.1 Standard GWO
3.2 Improved GWO
4 Numerical Simulations
5 Conclusion
References
A Review on Tracking Control of the Underactuated Vessel with Time Delays
1 Introduction
2 Control Method Based on Time Delay Estimator
2.1 Backstepping Control with Time Delay Estimation
2.2 Model-Free Tracking Controller that Combines TDE with Dynamic Gain Strategies
2.3 Adaptive Fuzzy Exponential Terminal Sliding Mode Trajectory Tracking Control with TDE
3 Control Method Based on Model Predictive Control
3.1 Sliding Mode Controller Based on a Smith Predictor
3.2 Backstepping Sliding Mode Control Method Based on RBF Neural Network Method and State Prediction
4 Summary and Prospects
References
A Multimodal Image Matching Algorithm Based on Structure Feature
1 Introduction
2 Related Work
3 Multimodal Image Matching Based On Structure Feature
3.1 Log-Gabor Orientation Estimation
3.2 Similarity Measurement Based on DOP
4 Experiment
5 Conclusion
References
Full-Scale Attitude Solution Based on Dual Euler Method
1 Introduction
2 Full-Scale Attitude Dual Euler Algorithm
2.1 Update the Attitude Angle
2.2 Solution of Positive and Reverse Euler Angles
2.3 Adjustment of Positive Pitch Angle Range
3 Simulation Results
4 Conclusion
References
Q-Learning Based Online Adaptive Flight Control for Fixed-Wing UAV
1 Introduction
2 UAV Dynamics
3 Q-Learning Based Online Adaptive Control Law Design
3.1 Regulation Flight Controller Design Based on Q-learning
3.2 Tracking Flight Controller Design Based on Q-learning
4 Simulation Results
4.1 Simulation of LQR Problem
4.2 Simulation of LQT Problem
5 Conclusion
References
Improving Design of Aerospace Vehicle Orbital Transfer Optimization with Finite Thrust Based on Legendre Pseudospectral Method
1 Introduction
2 Description of the Orbital Transfer Optimization Problem
2.1 Establishment of Motion Equation
2.2 Selection of Performance Data
2.3 Constraints
3 Introduction to Pseudospectral Method
3.1 The Method of Legendre Pseudospectral
3.2 Nonlinear Programming Problem Description
4 Simulation and Result Analysis
4.1 Simulation Parameters
4.2 Simulation Curve and Result Analysis
5 Conclusion
References
A Real-Time Trajectory Planning and Guidance Algorithm for Terminal Area Energy Management
1 Introduction
2 Problem Formulation
3 Online Trajectory Planning
4 Emergency Trajectory Planning
5 Simulation
6 Conclusion
References
Precise Formation Control for the Multi-agent Systems Based on Tilted Potential Field with Collision Avoidance
1 Introduction
2 Preliminaries and Problem Formulation
2.1 Preliminaries
2.2 Problem Formulation
3 Formation Control Law Based on TPF
3.1 Design of Tilted Artificial Potential Field
4 Formation Control Law Based on TPF
5 Numerical Simulation
6 Conclusion
References
Robust Nonlinear Least Squares Control Allocation for Overactuated Aircraft
1 Introduction
2 Problem Statement and Preliminary
3 Robust Nonlinear Least Squares Control Allocation
4 Design Example
4.1 Aircraft Model
4.2 Non-adaptive Dynamic Inversion Controller Design
4.3 Implementations of RNLSCA
5 Conclusions
References
Optimal Guidance with Impact Angle Control Based Time-To-Go Estimation
1 Introduction
2 Optimal Guidance with Impact Angle
2.1 Relative Motion Model
2.2 Optimal Guidance Law Design
2.3 Time-To-Go Estimation
3 Simulation
3.1 Comparative Simulation Time-To-Go Estimation
3.2 Guidance Accuracy Simulation
3.3 Weighting Factor Comparative Simulation
4 Conclusion
References
Aggressive Collision Avoidance and Control Method for Quadrotor
1 Introduction
2 Quadrotor Model
3 PID Controller Based on Quaternion
4 Modified Artificial Potential Field
5 Simulation Experiment
5.1 Collision Avoidance in Hovering State
5.2 Collision Avoidance When Tracking a Trajectory
6 Conclusion
References
Improved Unscented Kalman Filter for Satellite Attitude Estimation
1 Introduction
2 Fundamentals of IMEE-UKF
2.1 State Prediction
2.2 Measurement Update
2.3 State Update
3 Attitude Estimation Model
4 Simulation
5 Conclusion
References
Adaptive Radial Basis Function Neural Network-Based Active Fault-Tolerant Control for Spacecraft Formation Flying System
1 Introduction
2 Relative Motion Model of Spacecraft Formation Flying Systems
3 Adaptive RBFNN Estimator-Based Actuator Fault Reconstruction
4 Adaptive RBFNN-Based Spacecraft Formation Maintenance Fault-Tolerant Control
5 Simulation Example
6 Conclusion
References
EMD Noise Reduction Method of MEMS Gyroscope Based on Chi-Square Detection
1 Introduction
2 Empirical Mode Decomposition Noise Reduction Method
3 Improvement of Outlier Processing and EMD Algorithm
3.1 Elimination of Signal Outliers of MEMS Gyroscope Based on Chi Square Detection
3.2 IMF Classification Processing and Reconstruction Based on Joint Correlation
4 Simulation and Results
4.1 Test of MEMS Gyroscope Signal Outlier Detection
4.2 Experiment of Improving EMD Noise Reduction of MEMS Gyroscope
5 Conclusion
References
Cooperative Collision Avoidance Route Planning Based on Improved RRT Algorithm
1 Introduction
2 Modeling of Route Planning Problem
2.1 Planning Space Description
2.2 Expression of Constraint
3 Route Planning Model Based on Improved RRT Algorithm
3.1 Basic RRT Algorithm
3.2 Improved RRT Algorithm
4 Simulation Verification
4.1 Setting the Planning Scene
4.2 Comparative Experiments
5 Conclusions
References
Research on Air-to-Air Missile Cooperative Navigation Technology Based on GNSS
1 Preface
2 Cooperative Guidance Strategy of Air-to-Air Missile
2.1 Master-Slave Collaborative Strategy
2.2 Problem Statement
3 Error Model
3.1 Inertial Navigation Error Equation
3.2 Satellite Navigation Error Equation
4 Satellite Navigation Measurement Equation
4.1 Pseudo Range Measurement Equation
4.2 Pseudo Range Rate Measurement Equation
5 State Equation of Cooperative Navigation
6 Cooperative Navigation Measurement Equation
6.1 Cooperative Navigation Pseudo Range Measurement Equation
6.2 Pseudo Range Rate Measurement
7 Digital Simulation
7.1 Simulation Condition
8 Summary
References
Attitude-Tracking Control Based on Robust Adaptive Dynamic Programming for Hypersonic Vehicles
1 Introduction
2 Hypersonic Vehicle Model
3 Tracking Control Based on RADP
3.1 Tracking Control
3.2 Optimal Control Law Design
3.3 Online Learning Based on RADP
4 Stability Analysis
4.1 Proof of Equivalence
4.2 Stability Proof
5 Simulation Results and Analysis
6 Conclusion
References
A Beyond Visual Range Air Combat Integrated Threat Assessment Method Based on Target Intention and Event
1 Introduction
2 Threat Assessment Model
2.1 Architecture of Assessment Model
2.2 Situation Threat Index
2.3 Intention Threat Index
2.4 Capability Threat Index
2.5 Event Threat Index
3 Calculation of Threat Assessment Based on GRA Method
3.1 Threat Assessment Process Based on GRA
4 Simulation
5 Conclusion
References
A New Threshold-Free RAIM Based on Monte Carlo Sampling
1 Introduction
2 RAIM with Threshold
3 Monte Carlo Integration and Sampling
4 Threshold-Free RAIM
4.1 De-thresholding Using Monte Carlo Sampling
4.2 Algorithm Flow
5 Experiments and Performance Analysis
5.1 Experimental Conditions
5.2 Statistics of Experimental Results
5.3 Detailed Analysis
6 Conclusions
References
Nonlinear Modeling of Fixed-Wing Mode for a Ducted-Fan Tiltrotor UAV by DATCOM
1 Introduction
2 Problem Expression
2.1 Reference Frames
2.2 Nonlinear Modeling
3 Simulation Results
4 Conclusions and Future Plans
References
A Robust Obstacle Detection and Tracking Method Using Geometric Restrictions for Monocular UAV
1 Introduction
2 Hough Transform-Based Rectangle Detection
2.1 Rectangle Detection in Hough Space
2.2 Two Quadrangles Metrics
2.3 Rotating Obstacle Detection
2.4 Local Rectangle Tracker
3 Experimental Results
4 Conclusions
References
Application of BDS Short Message in General Aviation Surveillance
1 Introduction
2 System Structure
2.1 Movement Message
2.2 Early Alert Message
3 Conflict Detection
3.1 Pre-processing
3.2 Conflict Detection Algorithm
4 Simulation and Results
5 Conclusions
References
Health Monitoring for Variable Pitch Systems of Wind Turbine Using Multi-layer Perceptron Strategy
1 Introduction
2 Dynamics Model and Data for Variable Pitch Systems of Wind Turbine
3 Artificial Neural Network
4 Fault Monitoring
5 Numerical Example
6 Conclusion
References
Radau Pseudospectral Method-Based Cooperative Re-entry Trajectory Optimization for Hypersonic Reentry Vehicle
1 Introduction
2 Problem Formulation
2.1 Dynamics Motion Equation
2.2 General Constraints
2.3 Cooperative Constraints
3 Radau Pseudospectral Method
3.1 Fundamental
3.2 Discrete for Constrained Continuous Optimal Control
3.3 Cooperative Trajectory Strategy
4 Simulation Result
5 Conclusion
References
Carrier-Based Aircraft Landing Based on Deck Motion Prediction
1 Introduction
2 Deck Motion Prediction Structure Design
2.1 Deck Motion Modeling
2.2 Deck Motion Prediction
3 Direct Lift Landing Control Method
4 Control Structure Simulation Verification
4.1 Deck Motion Prediction Simulation
4.2 Direct Lift Landing Simulation with Deck Motion Prediction
5 Conclusion
References
Trend of Integrated Communication and Navigation Signals
1 Introduction
2 Navigation Augmented by Communication
3 Design of Integrated Communication/Navigation Signal
3.1 Category of Integrated Communication/Navigation Signal
3.2 Modulation Types for ICNS
4 Summary of the Trend of Modulation for ICNS
5 Conclusion
References
Path Planning for Maritime Drones in a Free Space Environment Based on Reinforcement Learning
1 Introduction
2 Q Learning for Traversing Maritime Free Space
2.1 Method
2.2 Free Space Action-State Discrete Scheme
3 Learning Strategy
3.1 State-Aware Guided Learning Strategy
3.2 Reward Setting
3.3 Summary of Algorithm
4 Numerical Analysis
4.1 Experiment Setting
4.2 Trajectory Evolution
5 Conclusion
References
An Underwater SLAM Approach Using Regularly Distributed Magnetic Beacons
1 Introduction
2 Problem Statement
3 Magnetic Field of Magnetic Beacons
3.1 Magnetic Model and Matching Suitability
3.2 Generating Regional Field with High Matching Suitability
4 System Model and Experiments
4.1 System Model
4.2 Experiments
5 Conclusion
References
Implementation Method of Parallel Approaching Guidance Based on Adaptive Dynamic Surface Control Accounting for Autopilot Lag
1 Introduction
2 Problem Formulation
3 Parallel Approaching Guidance Law
3.1 Guidance Law Design
3.2 Stability of the Guidance Law
4 Simulation Verification
5 Conclusions
References
Fault-Tolerant Attitude Control of Spacecraft with Dynamic Pointing Constraints
1 Introduction
2 Preliminaries and Control Problem
2.1 Mathematical Model
2.2 Pointing Constraints
2.3 Problem Statement
3 Adaptive Controller Design
3.1 APF for Pointing Constraints
3.2 FTC Scheme
4 Numerical Simulation
5 Conclusion
References
The Safety Requirements Capture, Validation and Verification for Flight Control System of Civil Aircraft
1 Introduction
2 Capture of Safety Requirements
3 Hierarchy of Safety Requirements
4 Validation and Verification of Safety Requirements
4.1 Validation of Safety Requirements
4.2 Verification of Safety Requirements
5 Conclusion
References
Design of AFCS Localizer Mode for Civil Aircraft
1 Introduction
2 Design Requirements of AFCS LOC Mode for Civil Aircraft
3 Traditional Design Scheme of AFCS LOC Mode
4 Optimal Design Scheme of AFCS LOC Mode
4.1 Optimal Design for LOC Signal Disturbance Issue
4.2 Optimal Design for LOC Capture Overshoot Issue
5 Simulation Analysis
6 Conclusion
References
Research on Control Characteristics of Civil Aircraft Module Integration Fly by Wire Flight Control System
1 Introduction
2 System Architecture
3 Control Characteristic Analysis
4 Performance Test
5 Verification
6 Conclusion
References
Stable Task Allocation with Simulated Annealing in Taxi Ride-hailing Services
1 Introduction
2 Related Work
3 Problem Statement
3.1 Conceptual Definition
3.2 A Baseline Approach
4 Stable Matching to Total Pick up Distance Optimization
4.1 Simulated Annealing
4.2 Optimizing Total Pickup Distance Based on Simulated Annealing
4.3 Time Complexity Analysis
5 Experimental Study
6 Conclusion
References
Virtual Structure and Artificial Potential Field-Based Cooperative Control for UAV Formation
1 Introduction
2 UAV Modeling and Controller Design
2.1 UAV Modeling
2.2 PID-Based Inner and Outer Loop Controller
3 Formation Modeling and Cooperative Controller Design
3.1 Virtual Structure-Based Formation Modeling
3.2 Artificial Potential Field-Based Collision Avoidance Controller
4 Simulation Test
5 Flight Experiment
6 Conclusion
References
Event Trigger Based Robust Geometry Controller Design for the Agile Flight of the Unmanned Helicopter
1 Introduction
2 The Dynamics for the Unmanned Helicopter
3 The Position Control for the Unmanned Helicopter
4 The Attitude Controller Design for the Helicopter
5 Numerical Simulation
6 Conclusion
References
Velocity Optimization of Cargo Door Opening and Closing Process Based on PVT Algorithm
1 Introduction
2 CDAS
2.1 PVT Algorithm
2.2 Optimization of Opening Curve
3 Conclusion
References
A Novel Three-Dimensional Train Safe Braking Model Based on Train-To-Train Communication
1 Introduction
2 Three-Dimensional Safety Braking Model
2.1 ADBM: Assume that the Leading Train is Stationary
2.2 RDBM: The Train Runs at Actual Speed
2.3 Comparative Analysis
3 System Simulation
3.1 BP Neural Network PID Method
3.2 Engineering Simulation Data
3.3 Simulation Result
4 On-Site Engineering Test
5 Conclusion
References
Gyro-Axis-Based Calibration Method for Rate-Bias Laser-Gyroscope Inertial Navigation System
1 Introduction
2 Problem Statement
2.1 Sensor Model
2.2 Demerit of Common Calibration Methods
3 Gyro-Axis-Based Calibration Method for Rate-Bias System
3.1 Calibration of Gyroscope Triad
3.2 Calibration of Accelerometer Triad
4 Real Tests
4.1 Results of Rate-Test Method
4.2 Results of Kalman Filter Method
4.3 Results of the Proposed Method
5 Conclusion
References
Design and Analysis of Redundant Flight Control System for Large Unmanned Airship
1 Introduction
2 System Redundancy Architecture Design
3 Redundancy Management
4 System Reliability and Security Analysis
4.1 System Reliability Analysis
4.2 System Security Analysis
4.3 Comparative Analysis of Redundancy Architecture
5 Conclusion
References
Trajectory Planning and Trajectory Tracking Control Method of Unmanned Airship
1 Introduction
2 Track Planning Based on Approximate Decoupling of Control Channels
2.1 Offline Path Planning Method
2.2 Online Planning of Track
3 Track Tracking Control Method with Constraints
4 Modeling and Simulation Testing
5 Conclusion
References
Research on Design Method of Civil Aircraft Advanced Door Actuating System Based on MBSE
1 Introduction
2 Door Actuating System
3 Model Based Door Actuating System Design Process
4 Operational Architecture
4.1 Stakeholder Analysis
4.2 Need Architecture
4.3 Lifecycle Analysis
4.4 Use Case Analysis
4.5 Functional Hazard Analysis at Environment Level
5 Functional Architecture
5.1 A Subsection Sample Functional Decomposition and Interactions
5.2 Functional Modes
5.3 Functional Hazard Analysis at System Level
5.4 Functional Requirement Architecture
6 Conclusion
References
Autonomous Maneuver Avoidance Decision Technology for Large Aircraft Based on Survivability
1 Introduction
2 Design Process
3 Model Establishment
3.1 Aircraft Model
3.2 Missile Model
3.3 Missile Dynamics Modeling
3.4 Proportional Navigation Modeling
4 Avoidance Method
4.1 Phased Avoidance Method
4.2 Independent Improvement of Fuzzy Rules
4.3 Maneuver Action Decomposition
5 Simulation Analysis
5.1 Exhaustive Method
5.2 Monte Carlo
5.3 Simulation Results
5.4 Visual Research and Development
6 Conclusion
References
AHP-Based Interactive Target Threat Level Assessment and Visualization Method
1 Introduction
2 AHP-Based Target Threat Assessment
2.1 Hierarchical Model for Target Threat Assessment
2.2 Indicator Weight Assignment
2.3 Normalization of Quantitative Indicators
2.4 Comprehensive Threat Result Calculation and Ranking
3 Target Threat Visualization Method
3.1 General Visualization Application
3.2 Interactive Threat Assessment and Visualization
4 Simulation Analysis
5 Conclusion
References
Single-Point Positioning with Altitude Constrains: A Hard Constrain and a Weighted Constrain
1 Introduction
2 Single-Point Positioning Model
2.1 Closed-Form Method
2.2 Least Squares Solution
3 Altitude-Constrained Least-Squares
3.1 Least-Squares with Quadratic Equality Constraints
3.2 Geometrical Analysis
4 Weighted Altitude Constrained Least-Squares
4.1 Optimized Solution
5 Experiment and Analysis
6 Conclusion
References
Aircraft Avoidance of Suborbital Debris Hazard Zone Based on Lazy Theta Algorithm
1 Introduction
2 Suborbital Debris Environment Modeling
2.1 Debris Prediction Model Based on Covariance Algorithm
2.2 Delineation and Expansion of the Flight Restricted Area
3 Rerouting Path Planning
3.1 Mathematical Model for Rerouting Path Planning
3.2 Lazy Theta Algorithm
4 Experiment Results
5 Conclusion
References
Research and Analysis of Mutual Interference Between Beidou and 5G Signals on Airport Ground
1 Introduction
2 System Characteristics and Parameters
3 Interference Scenarios of 5G Signals on S-band RDSS Signals
4 Interference Assessment and Analysis
5 Conclusion
References
B-Spline Fusion Line of Sight Algorithm for UAV Path Planning
1 Introduction
2 A Algorithm
3 The Improved A Algorithm
3.1 Visibility Detection Algorithm
3.2 Adaptive Cost Function
3.3 B-Spline
4 Simulation Analysis
4.1 Experimental Environment
4.2 Experimental Results
5 Conclusion
References
Online Generation of Smooth Gliding Re-entry Trajectory
1 Introduction
2 Equations of Motion
3 Online Planning
3.1 Initial Descent Section Trajectory Planning
3.2 Proposed Balanced Gliding Section Trajectory Planning
4 Online Trajectory Generation Simulation
5 Conclusions
References
Adaptive Filtering Algorithm for Urban Traffic UAV Integrated Navigation Based on MEMS Devices
1 Introduction
1.1 A Subsection Sample
2 INS/GPS/VG Integrated Navigation Systems and Kalman Filter
2.1 Combination Navigation Model
2.2 Kalman Filter Equation
3 Sage-Husa Adaptive Error State Filtering Algorithm
4 Simulation and Experiment
4.1 Flying Data Simulation
4.2 Sports Car Experiment
5 Summary
References
Empirical Model of Single Dielectric Barrier Discharge Plasma Actuator for Flow Control
1 Introduction
2 DBD Plasma Actuator Model
2.1 Empirical Model of Thrust
2.2 Distribution Modeling of Body Force
3 Meshing and Independence Verification
4 Results and Discussion
4.1 Estimated Thrust Verification
4.2 Verification of Flow Field Characteristics
5 Conclusions
References
Optimal Avoidance Path Planning and Guidance Method for Ground Targets Based on Artificial Repulsion Field
1 Introduction
2 Modeling of the Area to Be Avoided
3 Artificial Repulsion Field Modeling
4 Optimal Circumvention Guidance Instruction Generation
5 Instruction Critical Uncontrollable Problem
6 Mathematical Simulation
6.1 Decision Instruction Correctness Verification
6.2 Drop Point Prediction Accuracy Verification
6.3 Validation of the Effect of Circumvention Control
7 Conclusion
References
Efficient Path Generation Method for Unmanned Aerial Vehicle via Multiple Waypoints
1 Introduction
2 Problem Formulation
3 Generation Method for Multi-Waypoints Problem
3.1 Shortest Path Between Two Waypoints
3.2 Heading Iterative Optimization Algorithm
3.3 Heading Iterative Optimization Algorithm
4 Simulation Results
5 Conclusion
References
Research on Configuration Optimization Method of Aircraft Cluster Cooperative Navigation for Real-Time ROI
1 Introduction
2 Cooperative Navigation Scheme of Aircraft Cluster for Real-Time ROI
3 Configuration Optimization Method of Aircraft Cluster Cooperative Navigation
3.1 Bearing-Only/Inertial Tight Integrated Navigation Model
3.2 Positional Dilution of Precision
3.3 Dynamic Configuration Optimization Method
4 Simulation and Analysis
5 Conclusion
References
Analysis on Positioning Performance of BDS-3 System in Polar Region
1 Introduction
2 Problem Formulation
3 Synthetical Method for Position Calculation in Polar Region
4 Simulation Analysis
5 Verified by the Real Ship Tests
5.1 Number of Visible Satellites
5.2 PDOP Value
5.3 Elevation Angle and CNR
5.4 Positioning Performance
6 Summary
References
Autonomous Obstacle Avoidance Algorithm for UAVs Based on Obstacle Contour Detection
1 The Introduction
2 Obstacle Contour Detection Based on HSV Color Space
2.1 Basic Procedure
2.2 Image Smooth Filtering and HSV Color Space Transformation
2.3 Threshold Segmentation and Morphological Close calculations
2.4 Edge Detection and Contour Extraction
2.5 Solving Centroid Coordinates
3 D Path Search Algorithm
4 Simulation Verification Based on Airsim
4.1 UAV Model Establishment
4.2 Construction of Simulation Environment
4.3 UAV Autonomous Obstacle Avoidance Simulation
5 Conclusion
References
Lateral Automatic Landing Control of Carrier-Based Aircraft Based on Nonlinear Dynamic Inversion
1 Introduction
2 Lateral Landing Kinetic Model
3 Lateral Airwake Model
4 Controller Design Based on Nonlinear Dynamic Inversion
5 Simulation and Analysis
6 Conclusion
References
Flood Monitoring from Sentinel-1 SAR Images Based on Convolutional Neural Networks: A Case Study in Xinxiang City
1 Introduction
2 Data and Method
2.1 Study Area
2.2 Data Source
2.3 Method
3 Experimental Results
4 Conclusion
References
STT/BTT Control Design of Plane-Symmetry Vehicle in Diving Phase
1 Introduction
2 Aircraft Dynamics Model
3 Control Scheme
3.1 STT Control
3.2 BTT Control
4 Controller Design
4.1 Yaw Channel
4.2 Roll Channel
5 Numerical Simulation
6 Conclusion
References
Multistep Iterative Tracking Filter for Relative Orbit Determination in an Arbitrarily Orbit
1 Introduction
2 Universal Relative Orbit Model
3 Multistep Iterative Tracking Filter for Relative Orbit Determination
3.1 Measuring Equation of Relative Orbit Motion
3.2 Multistep Iterative Tracking Filter
4 Simulation
5 Conclusions
References
Cooperative Situation Awareness of Multi-UAVs Based on Multi-sensor Information Fusion
1 Introduction
2 Problem Statement
3 Information Fusion Based on D-S Evidence Theory
3.1 Framework of D-S Evidence Theory
3.2 Information Fusion Among Different UAVs
3.3 Information Fusion Among Different Moments
4 Case Study
4.1 Cooperative Situation Awareness Under Fixed Formation
4.2 Cooperative Situation Awareness Under Flexible Formation
5 Conclusion and Future Work
References
An Improved Predictor-Corrector Guidance Algorithm for Reentry Glide Vehicle Based on Fast Landing Points Position Prediction
1 Introduction
2 The Dynamic Models and Constraints of Reentry Glide Vehicle
3 Fast Landing Points Positions Prediction
3.1 The Design of Attack Angle Profile
3.2 Bank Angle Corridor
3.3 Calculation of the Absolute Value of Bank Angle Based on the Fast Landing Points Position
4 Simulation
4.1 Simulation Conditions and Objects
4.2 Simulation and Analysis of Results
5 Conclusion
References
Simulation Analysis of an Electric Drive Device Based on Matlab
1 Introduction
2 Performance Metrics
3 System Modeling
3.1 Current Hysteresis Tracking Control
3.2 Speed Loop
3.3 Hall Velocimetry
3.4 System Simulation Model
4 Simulation Content and Results Analysis
4.1 Simulation Environment
4.2 No-Load Simulation Curve
4.3 Front Load Simulation Curve
4.4 Overload Simulation Curve
4.5 Simulation Conclusion
5 Test Results and Analysis
5.1 Front Load Test Results
5.2 Overload Test Results
5.3 Conclusion
6 Conclusion
References
Learning-Based Optimal Actuator Attack Design for Quadrotor
1 Introduction
2 Quadrotor Model and Problem Formulation
2.1 Quadrotor Model
2.2 Problem Formulation
3 Attack Signal Design Based on Neural Network
3.1 Forward Value Propagation of Neural Network
3.2 Gradient Backpropagation of Neural Network
4 Simulation Example
5 Conclusion
References
Key Technologies of the Cooperative Combat of Manned Aerial Vehicle and Unmanned Aerial Vehicle
1 Introduction
1.1 Application
1.2 Advantage
2 Architecture
3 Main Process
3.1 Task Allocation
3.2 Decision Allocation
3.3 Formation Control
4 Conclusion and Prospect
References
Coordinated Standoff Tracking of a Moving Target Based on the Lateral Offset
1 Introduction
2 Problem Formulation
3 Design and Extension of the Guidance Law
3.1 Guidance Law Based on the Lateral Offset
3.2 Cooperative Guidance Law
4 Simulations
4.1 Comparison Between This Paper and LVFG
4.2 Cooperative Tracking of the Ground Target
5 Conclusion
References
A GNSS Receiver Module Based on SiP Technology
1 Introduction
2 Program Design
3 SiP Design
3.1 Electrical Design
3.2 Structural Design
3.3 Thermal Design
4 Verification of the SiP Module
5 Conclusion
References
A Top-k Similarity Node Search Method Based on Convolutional Neural Network in Complex Network
1 Introduction
2 Related Work
3 Problem Definition
4 Searching Algorithm for Similar Nodes in Complex Networks
4.1 Node Similarity
4.2 Top-k Text Similarity Node Evaluation
5 Experiments
5.1 Experimental Setup
5.2 Results Analysis
6 Conclusions
References
Method of Locating the Strike Point on Pest for Laser Control Based on Mask R-CNN
1 Introduction
2 Materials and Methods
2.1 Near-Infrared Image Acquisition
2.2 Mask R-CNN Based on Near-Infrared Dataset for Accuracy Improvement
2.3 Pest Skeleton Extraction and Strike Point Location
3 Results and Discussion
3.1 Performance Evaluation of Instance Segmentation Network
3.2 Accuracy Evaluation of Pest Location System
4 Conclusions
References
Non-stationary Interference Mitigation for GNSS Using Sparse Representation
1 Introduction
2 Signal Model and Sparse Representation
2.1 Signal Model
2.2 Sparse Representation
3 Proposed Approach
3.1 WVD Based Dictionary Construction
3.2 Jammer Mitigation
4 Complexity Analysis
5 Numerical Simulations
6 Conclusions
References
Accelerated Iterative Learning Control for a Class of Discrete Linear Systems with Uncertain Dynamics
1 Introduction
2 System Description and Preliminaries
2.1 System Description
2.2 Basic Definition of SMC
3 PILC Exploitation and Convergence Analysis
3.1 PILC Exploitation
3.2 Convergence Analysis of PILC
3.3 Robustness Analysis
4 Numerical Simulation
4.1 Simulation Results with Nominal Model
4.2 Simulation Results with Model Uncertainty
5 Conclusion
References
Multi-resolution Trajectory Optimization of eVTOL Aircraft Using Capacity Collocation
1 Introduction
2 Modeling Principles of eVTOL Wing-Borne Flight
3 Multi-resolution ATO by Capacity Collocation
3.1 Problem Statement and Reformulation
3.2 Multi-resolution ATO by Capacity Collocation
4 Numerical Cases
5 Conclusion
References
A Modeling Method for Flight Simulator TCAS Simulation System
1 Introduction
2 Modeling Ideas
2.1 Simulation Functions and Architecture
2.2 Simulation Process
3 Model Design
3.1 Data Interaction
3.2 Surveillance and Tracking
3.3 Conflict Detection
3.4 Vertical Avoidance
4 Conclusion
References
LSTM-Based Shuler Oscillation Error Restriction for Shipborne SINS
1 Introduction
2 Periodic Oscillation Errors of SINS
3 LSTM-Based Shuler Oscillation Error Restriction Method
3.1 The Principle of LSTM
3.2 Schuler Oscillation Error Restriction
4 Computer Simulation Data Validation
4.1 Simulation Conditions
4.2 Schuler Oscillation Error Compensation
5 Conclusion
References
A Target Assignment Method for Multi-missile Cooperative Operation Based on Improved Biogeography-Based Optimization Algorithm
1 Introduction
2 Target Assignment Model
3 Target Assignment Method Based on Improved Biogeography Algorithm
3.1 Basic Biogeography-Based Optimization Algorithms
3.2 Biogeography-Based Optimization Algorithm Based on the Predator-Prey Model
3.3 Individual Coding
3.4 The Process of PPMBBO Algorithm
4 Simulation Example and Analysis
5 Conclusion
References
3D Object Recognition of Unmanned Surface Vessel Based on Grid-Convolutional Neural Network
1 Introduction
2 3D Object Recognition
2.1 Problem Formulation
2.2 Preprocessing: Grid and Count
2.3 CNN Architecture: Train and Test
3 Experiments
3.1 Dataset
3.2 Parametric Design
3.3 Evaluation Indicators
3.4 Results
4 Conclusions
References
Distributed Dynamic Event-Triggered Consensus of Linear Multi-agent Systems with External Disturbances
1 Introduction
2 Preliminary
2.1 Graph Theory
2.2 Problem Statement
3 Main Results
3.1 Dynamic Event-Triggered Consensus Protocols
3.2 Self Triggered Control
4 Simulation Example
5 Conclusions
References
A Guidance and Control Scheme Based on NDO for Flexible Hypersonic Vehicle
1 Motion Model of FHV in Glide Phase
1.1 Translational and Rotational Motion Model
1.2 Relative Motion Model
2 Guidance and Control System
2.1 Guidance Sub-system
2.2 Attitude Control Sub-system
3 Simulation Experiments
3.1 Parameter Value Set
3.2 Simulation Results and Discussion
4 Conclusion
References
Design of a Combined Indoor Unmanned Vehicle Positioning System
1 Introduction
2 Multi-sensor Information Fusion Algorithm
2.1 State Error Equation for Combined Positioning System
2.2 Measurement Equations for Combined Positioning Systems
3 Experimental Analysis of Combined Positioning System
3.1 Indoor Rectangular Motion Positioning Experiment
3.2 Polygon Positioning Experiment
3.3 Location Test in Complex Environment
4 Conclusion
References
Fault-Compensation Based Position Control of Vectored-Propeller Airship
1 Introduction
2 Actuator Fault Modeling
2.1 Nominal Model
2.2 Faults Model
3 Fault Force Estimation
4 Fault-Tolerant Tracking Control
4.1 General Controller
4.2 Position Tracking Simulation
5 Conclusions
References
A Visual Odometry Using Convolutional Neural Network
1 Introduction
1.1 Based on Geometric Features
1.2 Based on Deep Learning
2 End-to-End Visual Odometry
3 Experiment
3.1 Training Sets
3.2 Results
4 Conclusion
References
On Predictor-Corrector Guidance of Hypersonic Vehicle in Glide Segment
1 Introduction
2 Problem Description
2.1 Gliding Guidance Model
2.2 Constraint Condition
3 Guidance Law
3.1 Nominal Angle of Attack Profile Design
3.2 Lateral Corridor Design
3.3 Online Trajectory Update
3.4 Trajectory Tracking Control
4 Simulation Result
5 Conclusion
References
Adaptive Lifting Network with Center Loss for Bearing Fault Diagnosis
1 Introduction
2 The Proposed Method
2.1 Input
2.2 DL Process
2.3 Loss Function
3 Experimental Verification
3.1 Time-Varying Data
3.2 Parameter Setup
3.3 Performance Comparison
4 Conclusion
References
Controllability Analysis of the Autopilot with Angular-Acceleration Feedback
1 Introduction
2 Autopilot with Feedback of Angular Acceleration
2.1 Model Formulation
2.2 Two-Loop Autopilot with Feedback of Angular Acceleration
2.3 LQ Optimal Tracking Law Design
3 Output Controllability Analysis
3.1 Output Controllability
3.2 Degree of Output Controllability
4 Simulation and Verification
4.1 Stability Analysis
4.2 Controllability Analysis
5 Conclusion
References
UAV Zero-Length Launch Control Law Design
1 Introduction
2 Takeoff Model
2.1 Takeoff Process Analysis
2.2 Takeoff Model
3 Control Law Design
3.1 Servo System
3.2 Linear Active Disturbance Rejection Control
3.3 Longitudinal Control Law Design
3.4 Lateral Heading Control Law Design
4 Simulation
5 Conclusion
References
On the Scalar-Vector Fusion Loop for GNSS Signal Tracking
1 Introduction
2 Scalar-Vector Fusion Tracking Loop
2.1 Partitioned Vector Tracking Loop
2.2 Tracking-Tracking Kalman Filter Based Fusion Loop
3 Experiment Results
4 Conclusion
References
Multiple Faults Detection Algorithm Based on REKF for GNSS/INS Integrated Navigation
1 Introduction
2 Multiple faults Detection Algorithm Based on REKF for GNSS/INS Navigation
2.1 Robust Model of Tightly Coupled GNSS/INS Integration
2.2 IGG-III Equivalent Weight Function
2.3 Multiple Faults Detection and Identification Scheme
3 Simulations and Analysis
3.1 Scenario and Settings for Simulation
3.2 Global Test Statistics
3.3 Local Test Statistics
4 Conclusion
References
Dynamic Scheduling Method of Satellites Based on Sliding Window and Particle Swarm Optimization Algorithm
1 Introduction
2 Satellite Resource Scheduling Model
2.1 Mathematical Model Assumptions and Symbolic Description
2.2 Discrete Coding Method
2.3 Fitness Function
3 Scheduling Model Based on Priority and Sliding Window
3.1 Priority Queue
3.2 Adaptive Adjustment Model of Sliding Window
4 PSO Algorithm for Satellite Resource Allocation
4.1 Discrete PSO Algorithm
4.2 Improvement of Discrete PSO
5 Simulation Experiment and Experimental Result Analysis
5.1 Contrast Experiment of Particle Number
5.2 Comparison of Different Algorithms
6 Conclusion
References
Overview of Online Track Planning for Cruise Missiles
1 Preface
2 Introduction to the Online Trajectory Planning Problem
2.1 Description of the Online Trajectory Planning Problem
2.2 Models for the Online Trajectory Planning Problem
2.3 Environmental Threat Model
3 Status of Domestic and International Research
3.1 Traditional Algorithms
3.2 Heuristic Algorithm
3.3 Intelligent Algorithm
4 Existing Problems and Research Methods
4.1 Existing Problems
4.2 Research Method
5 Conclusion
References
Aggressive Quadrotor Flight Control Through Dynamic Gates
1 Introduction
2 Model
2.1 Quadrotor Model
2.2 Swing Gate Model
3 Improvements on PID Controller
3.1 PID Controller with Feedforward
3.2 Modified PID Controller Combined with Virtual Force
4 Simulation
4.1 Simulation Setup
4.2 Simulation Results
5 Conclusion
References
An Attitude Determination Scheme for the Nano Star Tracker
1 Introduction
2 The Definition of the Coordinate System Used in This Paper
2.1 Geocentric Inertial Coordinate System (GICS)
2.2 Orbit Coordinate System (OCS)
2.3 Satellite Coordinate System (SCS)
3 The System Model
3.1 State Model
3.2 Measurement Model
4 The Star Identification Algorithm for the Nano Star Tracker
5 Results
5.1 Simulative Conditions
5.2 Simulative Results
6 Conclusions
References
Vision-Based Intelligent Grasping System for Moving Object
1 Introduction
2 Related Works
3 Detection and Tracking of Moving Object
3.1 Moving Object Detection Based on Improved YOLOv4
3.2 Moving Object Tracking Based on DSST
3.3 Moving Object Detection and Tracking Based on Cascade System
4 Position Determination of the Object
5 Experiment and Analysis
5.1 System Structure
5.2 Moving Target Grasping Experiment
6 Conclusion
References
ConShuffleNet: An Efficient Convolutional Neural Network Based on ShuffleNetV2
1 Introduction
2 Related Work
2.1 Weights Pruning and Quantization
2.2 Lightweight Network Architectures Design
3 Proposed Method
3.1 Pyramid Dilated Depthwise Convolution
3.2 Coordinate Attention Module
3.3 Model Architecture
4 Experiments
4.1 Implementation Details
4.2 Ablation Study
4.3 Comparison with Other Networks
5 Conclution
References
Distributed Primal-Dual Mirror Dynamics for Constraint-Coupled Optimization
1 Introduction
2 Preliminaries
2.1 Graph Theory
2.2 Mirror Descent Dynamics
3 Algorithm Design and Convergence Analysis
3.1 Centralized Primal-Dual Mirror Dynamics
3.2 Distributed Primal-Dual Mirror Dynamics
4 Numerical Experiments
5 Conclusion
References
Behavior Analysis of Cooperative-Antagonistic Networks with Heterogeneous Delays
1 Introduction
2 Signed Switching Digraph
3 Cooperative-Antagonistic Network Dynamics with Delays
4 Proofs
4.1 Proof of Theorem 1
4.2 Proof of Theorem 2
5 Simulations
6 Conclusions
References
Model-Based Design and Evaluation Approach of Redundant Electro-Mechanical Actuator Control Architecture for eVTOL
1 Introduction
2 Modeling Principles of BLDC Motor and Its Control System
2.1 Three-Phase BLDC Motor
2.2 BLDC Control System
3 Architecture Design
4 EMA Failures and Evaluation
4.1 Failure Classification
4.2 Fault Injection and Simulation Results
5 Conclusion and Future Work
References
MPC Underwater Docking Control Method Study of UUV in Complex Interference
1 Introduction
2 Complex Interference Analysis
2.1 Terminal Docking Interference
2.2 Collision Avoidance Interference
2.3 Ocean Current Interference
3 MPC Docking Method Design
4 Simulation Comparison
5 Conclusion
References
Model Predictive Control and Thrust Allocation for Dynamic Positioning of Vessels
1 Introduction
2 Control and Thrust Allocation Method
2.1 Mathematical Model for Vessel
2.2 MPC Controller Design
2.3 Thrust Allocation Algorithm
3 Experimental Setup
3.1 Model
3.2 Environment Condition Simulation
4 Results and Discussion
5 Conclusions
References
Research on Adaptive Control Method of Wing Morphing Aircraft Based on Neural Network
1 Introduction
2 Mathematical Model of Aircraft
3 Model Reference Adaptive Control Method Based on Natural Network
3.1 The Dynamic Inversion Controller
3.2 Controller Design Principle
3.3 The Design of Adaptive PID Control System Based on Neural Network
4 Simulation Results
5 Conclusions
References
Nonlinear Spline Prioritization Optimization Adaptive Filter
1 Introduction
2 The Proposed SPOAF
3 Convergence Property
3.1 Convergence Performance
3.2 Computational Complexity
4 Case Results
4.1 Case 1
4.2 Case 2
5 Conclusions
References
Scheduling of Multiple Earth Observation Satellites Based on Short-Term Cloud Forecasting
1 Introduction
2 Mathematical Formulation
2.1 Assumptions
2.2 Notations
2.3 Flow Mathematical Model
3 Scheduling Framework Based on Cloud Forecasting
3.1 Observation Profit Model
3.2 Rolling-horizon Based Scheduling Framework
4 Computational Experiments
5 Conclusions
References
Design of Fixed-Time Convergent Sliding-Mode Guidance Law with Impact Angle Constraints
1 Introduction
2 Problem Description and Related Theorems
2.1 Problem Description
2.2 Definitions and Theorems
3 Design of Non-singular TSMC Fixed-Time Convergent Guidance Law with Attack Angle Constraints
3.1 Linear Extended State Observer Design
3.2 A Non-singular Terminal Fixed-Time SMS
3.3 Guidance Law Design
4 Simulation Results and Analysis
5 Conclusion
References
Autonomous Operation Control for MEO/GEO Satellites Based on Mission Scheduling
1 Introduction
2 Satellite Autonomous Operation Control Technology
2.1 Requirements for Autonomous Operation Control
2.2 Composition of Autonomous Operation and Control System
2.3 Autonomous Operation Control Process
3 Key Technologies of Autonomous Operation and Control System
3.1 Autonomous Mission Scheduling Strategy
3.2 Autonomous Orbit Determination
3.3 Autonomous Orbit Maneuver Strategy
3.4 Autonomous Position Keeping Strategy
3.5 Fault Diagnosis and Processing Strategy
3.6 Energy and Thermal Control Management Strategy
4 Conclusion
References
Formation Configuration Design and Performance Analysis Under GMTI Mission Requirements
1 Introduction
2 Fundamental Contents
2.1 Formation Dynamics Model
2.2 GMTI Mission Analysis of SAR Satellite Formation
2.3 Optimization Objective and Constraint Functions
3 Configuration Design and Performance Verification Analysis
3.1 Design and Verification of Formation Configurations Along the Track
3.2 Design and Verification of Space Ellipse Formation Configurations
4 Conclusion
References
Particle Filter Method Based on Angle of Arrival for Seeking Radioactive Source
1 Introduction
2 Problem Formulation
2.1 Principle of γ-Rays Radiation Measurement
2.2 Principle of AOA
3 Source Seeking Algorithm Based on Particle Filtering
3.1 Locate Radioactive Sources by Particle Filter
3.2 Source-Seeking Algorithm Implementation
4 Experiments
4.1 Source-Seeking in Barrier-Free Environment
4.2 Autonomous Source-Seeking in Obstructed Environment
4.3 Localizations Under Different Size Areas
5 Conclusion
References
Distributed Cooperative Search Based on DRH-NSGA Under Communication Constraint
1 Introduction
2 Problem Description
2.1 Kinematic Model
2.2 Sensor Model of UAVs
2.3 Communication Model of UAVs
3 Environment Awareness Map
3.1 Target Existence Probability Map
3.2 Environmental Uncertainty Map
4 Algorithm Design
4.1 RHO Model
4.2 Searching Performance Indicators
5 Simulation Result
5.1 Parameter Settings
5.2 Searching for Planning Results
5.3 Effect of NSGA on Search Efficiency
6 Conclusion
References
Optimal Cooperative Interception Method Based on the Pursuit-Evasion Problem for Multiple Missiles
1 Introduction
2 Problem Description
2.1 Guided Munition Movement Model
2.2 Fuze Warhead Matching Model
3 Pursuit-Evasion Strategy
3.1 Evader Strategy
3.2 Pursuer Strategy
4 Numerical Simulations
4.1 Initial Conditions
4.2 Pursuit-Evasion of Simulation
5 Conclusion
A Method Based on VMD and Power Spectrum-CNN for Bearing Fault Diagnosis
1 Introduction
2 Methodology
2.1 VMD Decomposition Principle
2.2 Power Spectrum
2.3 Convolutional Neural Network
3 Decomposition and Reorganization of VMD
3.1 Number of IMF Options
3.2 Correlation Analysis
4 Experiments
4.1 Dataset
4.2 Fault Diagnosis Model
4.3 Analysis of Results
5 Conclusion
References
Study on High Performance Servo Control Based on IMC-PID Method
1 Introduction
2 Internal Model Control and Two-Degree-of-Freedom Control Theory
3 IMC-PID Method of Servo Control
3.1 Feature Model of Aero-Servo Mechanism
3.2 Equivalent Transformation and Derivation of IMC-PID Method
3.3 Robust Integrated Processing of IMC-PID Method
4 Simulation and Verification
4.1 Sensitivity Analysis and Simulation
4.2 Semi-physical Verification
5 Conclusion
References
Rocket Telemetry Data Evaluation Method Based on Data Threshold Envelopment Analysis
1 Introduction
2 Basic Fundamental
2.1 Outlier Removal Method Based on Letts Criterion
2.2 Data Correction Method Based on Least Squares Algorithm
2.3 Data Time Alignment Correction Method
2.4 The Method of Data Sequences Envelope Extraction
3 Practical Example of Application
3.1 Application Example of Data Outlier Elimination and Point Filling
3.2 Example of the Measurement Data Scaling
3.3 Example of Measurement Data Envelope Extraction
4 Conclusion
References
Research on the Construction Method of the Index System for the Performance Evaluation of Navigation Confrontation
1 Introduction
2 Characteristic of Related Evaluation Problems of Navigation Confrontation
2.1 Related Technologies of Navigation Confrontation
2.2 Related Evaluation Methods for Navigation Confrontation
3 Determination of Related Principles for Navigation Confrontation
3.1 Analysis of Task Requirements for Different Target Groups in Navigation Confrontation
3.2 Determination of Related Evaluation Principles of Navigation confrontation
3.3 Determination of Construction Principles of the Performance Index System
3.4 Construction of the Performance Framework of Navigation Confrontation Based on Related Principles
4 Establishment of the Index System for Assessment of Navigation Antagonistic Effect
4.1 Determination of the Evaluation Index System for the System-end Defense Effect
4.2 Determination of the Evaluation Index System for the User-end Defense Effect
4.3 Determination of the Evaluation Index System for the Navigation Reconnaissance Performance
4.4 Determination of the Evaluation Index System for the Network Safe and Protective Effect
5 Conclusions and Future Works
References
Trajectory Generator for Hypersonic Vehicle Based on Flight Dynamics
1 Introduction
2 Mathematical Model of Trajectory Generator
2.1 Data Trajectory Generator
2.2 Flight Control Equation
2.3 Supplementary Equations for 6DoF Model
3 Supplementary Navigation Information for Trajectory Generator
3.1 Position in Local-Level Frame
3.2 Velocity Vector in Local-Level Frame
3.3 Attitude Information in Local-Level Frame
3.4 Angle of Attack and Angle of Sideslip
4 Verification in Digital Simulation and HWIL Simulation
4.1 Flight Trajectory
4.2 Digital Simulation
4.3 HWIL Simulation
5 Conclusion
References
Predefined-Time Disturbance Observer Based Predefined-Time Sliding Mode Control for Space Triangle Tethered Formation System
1 Introduction
2 Model Description and Preliminaries
2.1 System Model
2.2 Preliminaries
3 Predefined-Time Nominal Controller Design
4 Predefined-Time Controller Design
4.1 Predefined-Time Disturbance Observer Design (PDOB)
4.2 Predefined-Time Controller Design Based on PDOB (PDOBPC)
5 Simulation Results
6 Conclusion
References
Anchor-Free and Pixel-Wise Convolution for Visual Tracking
1 Introduction
2 SiamAFP Framework
2.1 Pixel-Wise Correlation
2.2 Multi-feature Fusion Strategy
2.3 Anchor-Free Box Network
3 Experiments
3.1 Results on OTB100
3.2 Results on UAV123
3.3 Embedded Application
4 Conclusions
References
A Bit Synchronization Detection Method for High Dynamic and Weak GNSS Signal
1 Introduction
2 Bit Energy Detection
3 Bit Energy Combined Detection
4 Simulation and Analysis
4.1 Simulation Environment Setting
4.2 The Simulation Results
5 Conclusion
References
Study on the Formation Maintenance Control of the Satellites with Different Area-Mass-Ratio Considering Atmosphere Density Evolution
1 Introduction
2 Dynamical Analysis
3 Control Strategy Design
3.1 Orbit Maneuver with Specified Parameters
3.2 Orbit Maneuver with Unknown and Evolving Atmosphere
4 Simulation Analysis
5 Conclusion
References
Relative Positioning Method of Air-Ground Collaborative Robot
1 Introduction
2 Methodology
2.1 Tethered Cable Positioning Model
2.2 Coordinate System Alignment
2.3 System Modeling
2.4 Data Fusion Based on a Weighted Kalman Filter
3 Experiments
4 Conclusion
References
Asynchronous Multi-agent Pareto Optimization for Diverse UAV Maneuver Strategy Generation-12pt
1 Introduction
2 Simulation Environment Description
2.1 Fixed-Wing UAV Dynamic Model
2.2 2v2 Simulation Platform
3 Method
3.1 Asynchronous Multi-agent Pareto Optimization
3.2 Tolerance Mechanism
4 Experiment
4.1 Metric
4.2 Pareto Analysis
4.3 Visualization of Diverse Maneuver Trajectory
5 Conclusion
References
Research on Real-Time Fault Detection of UAV Flight Control System Sensor Based on Riemannian Manifold
1 Introduction
2 Problem Description and Modeling
2.1 Sensor Fault Diagnosis Based on Correlation Analysis
2.2 Data Processing
2.3 Calculation of the Reference Matrix
3 Design of the Fault Detection Method
4 Hardware-in-the-Loop Simulations
5 Conclusion
References
Research on UAV Path Planning Combined with Ant Colony and A
1 Introduction
2 UAV Path Planning System Schemes
2.1 Planning Scene Grid Discretization
2.2 Various Flight Constraints
2.3 Obstacles and Threats
2.4 Path Evaluation Function
3 UAV Path Planning Based on ACO
3.1 Pheromone Initialization
3.2 Waypoint Selection Construction
3.3 Pheromone Refresh
4 UAV Path Planning Combined A and ACO
4.1 Improved A Algorithm
4.2 Improved ACO
4.3 Cubic B-Spline Path Smooth
5 Simulation Analysis
6 Conclusion
References
VINS-ACI: A Visual-Inertial Navigation System Adaptive to Complex Illumination by Feature Quality
1 Introduction
2 PL-VINS
2.1 Line Feature Detection and Description
2.2 Line Feature Represent and Residuals
3 VINS Adaptive to Complex Illumination
3.1 Gamma Correction
3.2 Residuals Optimized by Nonlinear Weight
4 Experiments and Results
4.1 EuRoC Datasets
4.2 Complex Lighting Environment Datasets
5 Conclusion
References
Attitude Control of Spherical Robot Based on Reinforcement Learning
1 Background Information
2 Dynamics Model Analysis of the Spherical Robot
3 Design of Attitude Controller Based on DQN Algorithm
4 Experimental Analysis
4.1 The Experimental Results of Simulation
4.2 The Experimental Results of Physical Test
5 Conclusions
References
Time-Varying Sliding Mode-Based Integrated Guidance and Control Design-12pt
1 Introduction
2 IGC Mathematical Model
3 TVSMC-Based IGC Law Design
4 Stability Analysis
5 Simulation Results
6 Conclusion
References
Consistency Formation Maneuver Control Based on Nonlinear Dynamic Inverse
1 Introduction
2 Composition of Formation System
3 Formation Command Tracker
3.1 Design of Fast Loop Control Law
3.2 Design of Slower Loop Control Law
3.3 Design of Slow Loop Control Law
3.4 Design of Instruction Tracker
4 Formation Maneuver Library
4.1 Consistency Control Protocol
4.2 Formation Description
4.3 Maneuver Design
5 Simulation Verification
5.1 Dive/Jump Maneuver
5.2 Turning Maneuver
6 Conclusion
References
A Parallelized Feature Analysis Method for Remote Sensing Images
1 Introduction
2 Remote Sensing Image Data Segmentation
2.1 Image Mapping
2.2 Feature Reuse and Filtering
3 Parallelize Feature Computation
3.1 Multi-process Parallelism
3.2 Distributed Processing
4 Experiment
5 Conclusion
References
Collision-Free Model Predictive Control for Periodic Trajectory Tracking of UAVs
1 Introduction
2 Problem Formulation
3 MPC for Periodic Trajectory Tracking
3.1 Collision-Free Constraints
3.2 Algorithm Design
4 Simulation Results
5 Conclusion
References
Distributed Formation Control of Multi UAV with Finite Time Convergence Based on MPC
1 Introduction
2 Problem Modeling
2.1 DMPC Principle
2.2 DMPC Algorithm Design
3 Design of Model Predictive Controller
3.1 Design of Cost Function of Model Predictive Control
3.2 Proof of System Stability
4 Simulation Analysis
5 Conclusion
References
Performance Analysis of Kinematic-to-Kinematic Relative Positioning Based on GPS/BDS-3
1 Introduction
2 GPS/BDS-3 Kinematic-to-Kinematic Relative Positioning Model
2.1 Measurement Equation of Kinematic-to-Kinematic Relative Positioning
2.2 Integer Ambiguity Resolution Based on Extended Kalman Filter and Test Method
3 Experiment Results and Discussion
3.1 Satellite and Epoch Availability
3.2 Ambiguity and Baseline Resolution Performance
4 Conclusions
References
Fixed-Time Fault-Tolerant Control of Quadrotor Formation with Sensor Faults
1 Introduction
2 Preliminaries and Problem Formulation
2.1 Graph Theory
2.2 Fixed-Time Convergence
2.3 Problem Formulation
3 Main Results
3.1 Sensor Fault Estimation Observer
3.2 Distributed Observer
3.3 Sliding Mode Controller
4 Hardware-in-the-Loop Simulation
5 Conclusion
References
Morphing-Aided Maneuver Control of Morphing Aircraft with Variable Wing Span and Sweep Angle
1 Introduction
2 Morphing-Aided Maneuver Control Model of Morphing Aircraft
2.1 Aerodynamic Model of Morphing Aircraft
2.2 Longitudinal Morphing-Aided Maneuver Control Model of Morphing Aircraft
3 Controller Design and Stability Analysis
3.1 Controller Design
3.2 System Stability Analysis
4 Nonlinear Control Allocation
5 Simulation And Analysis
6 Conclusion
References
Adaptive Dynamic Programming Based Attitude Stabilization for a Quadrotor UAV Under Actuator Failures
1 Introduction
2 Model Description and Transformation
3 ADP-Based Controller Design
3.1 Optimal Control Description
3.2 ADP-Based Controller Design
4 Numerical Simulation Results and Analysis
5 Conclusion
References
Calibration and Application of Space Non-cooperative Target Relative Measurement Ground Simulation System
1 Introduction
2 Simulation System Calibration Experiment
2.1 System Coordinate Composition
2.2 System Coordinate Calibration Experiment Method
3 Simulation System Calibration Result
3.1 The Conversion of Active/Passive System and Guiderail System Coordinate
3.2 The Conversion of Measurement Sensor/Non-cooperative Target and Their Respective 6 - DOF Manipulator End Coordinate Systems
4 System Dynamic Test and Evaluation
5 Conclusion
References
An Extensive Application of Model Predictive Control Combined with Policy Search to Multi-agent Agile UAV Flight
1 Introduction
2 Related Work
3 Preliminary
3.1 Model Predictive Control
3.2 Policy Search
4 Methodology
4.1 Probabilistic Policy Search for MPC
4.2 Deep Neural Network Policy
4.3 Model Predictive Control for Passing and Collision Avoidance
5 Simulation and Analysis
5.1 Dynamics of the Gate and Quadrotors
5.2 Obtaining Traversal Time for Data Collection
5.3 Learning Traversal Time Adaptive for Passing
6 Conclusion and Future Work
References
Real-Time Performance Analysis of the Remote Test System Based on the Network Calculus
1 Introduction
1.1 Base Theories of Network Calculus
2 Remote LXI Test System Modeling
2.1 Business Flow Characteristic Model Based on Flow Specification
2.2 Network Calculus Model
3 Test and Real-Time Analysis of Business Flow
3.1 Node Service Curve
3.2 The System Service Curve
3.3 End-To-End System
4 Simulation Verification and Result Analysis
5 Conclusion
References
The Progress and Intelligent Control/Decision Technical Discussion on Hypersonic Morphing Flight Vehicle
1 Introduction
2 The Progress and Development on HMFV
2.1 The Classification of Morphing Aircrafts
2.2 The Progress on HMFV Overall Design and Control Technology
3 The Key Points for HMFV in Engineering Applications
3.1 Problems of Dynamic Strong Uncertainty
3.2 Problems of Strongly Nonlinear Time-Varying and Coupling
3.3 Integration Problem of Morphing Decision and Control
4 Control and Decision Scheme Design for HMFV
4.1 Intelligent ADRC Scheme for the HMFV
4.2 High-Precision Control Scheme with RBFNN for HMFV
4.3 Intelligent Decision and Control Integration Technology Scheme
5 Conclusion and Discussion
References
Method of Learning Dynamic Bayesian Network Parameter Based on DEQPK Algorithm
1 Introduction
2 Preliminaries
2.1 Dynamic Bayesian Network
2.2 DBN Parameter Learning
2.3 Situation Assessment
3 Method
3.1 Qualitative Constraint
3.2 DEQPK Algorithm
4 Experiment and Analysis
4.1 Precision
4.2 Time Consumption
4.3 Situation Assessment Results
5 Conclusion
References
A Research on a Integrated GNSS/INS/ODO Train-Based Positioning Technology
1 Introduction
2 Train Positioning System
3 GNSS/INS Loosely Coupled Aided by ODO
3.1 GNSS/INS Loosely Coupled
3.2 Analysis of ODO Velocity Error
3.3 Position Model Aided by ODO
4 Experiment and Analysis
5 Conclusions
References
Distributed Finite-Time Fault-Tolerant Control Based on Command Filtered Backstepping for Multiple Fixed-Wing Unmanned Aerial Vehicles
1 Introduction
2 Problem Statement and Preliminaries
2.1 Graph Theory
2.2 UAV Longitudinal Dynamics
2.3 Some Definitions and Lemmas
3 Main Results
3.1 Distributed Finite-Time Velocity Controller
3.2 Distributed Finite-Time Altitude Controller
3.3 Stability Analysis
3.4 Simulation Results
4 Conclusions
References
Human-Machine Interaction Model for Potential Threat of Enemy Warship and Operator Expression
1 Introduction
2 General Framework of the Model
2.1 Potential Threat Prediction Module
2.2 Facial Expression Recognition Module
2.3 Fusion Module
3 Model Implementation Method
3.1 FNN for Threat Prediction
3.2 Expression Recognition Based on CNN
3.3 Method for Fusion Module
4 Simulation Experiments
5 Conclusion
References
Exposure Risk Assessment of Oil-Powered Single-Rotor UAV in Pear Orchard
1 Introduction
2 Materials and Experimental Environment
3 Sampling and Determination Methods
3.1 Exposure Sampling Point Division
3.2 Exposure Pollution Determination
3.3 Data Analysis
4 Results and Analysis
4.1 Sediment Distribution of UAV Exposure Pollution
4.2 Analysis of Sediment Density and Coverage Rate of UAV Exposure
5 Discussion and Conclusion
References
Extended Dissipative Control for Discrete-Time T-S Fuzzy Singular Delay Systems
1 Introduction
2 System Description
3 Main Results
4 Example
5 Conclusion
References
Fault Diagnosis of Aircraft Navigation System Based on Machine Learning
1 Introduction
2 Algorithm Introduction
2.1 Threshold Calculation
2.2 One-Class SVM
2.3 Convolutional Neural Network
3 Data Processing and Framework
3.1 Construction of CNN Network Training Samples
3.2 One-Class SVM Sample Construction
3.3 Comprehensive Discrimination Mechanism
4 Experiment
4.1 Method One
4.2 Method Two
4.3 Method Three
4.4 Comprehensive Discrimination Framework
4.5 Comparison of Slow Change Fault Detection Time
5 Conclusion
References
A Fault-Tolerant Control Scheme for Civil Aircraft Based on Prescribed Performance Control
1 Introduction
2 Modeling and Problem Statement
2.1 Aircraft Modeling
2.2 Actuator Fault Modeling
2.3 Control Objectives
3 Preliminaries
3.1 Prescribed Performance Control
3.2 RBF Neural Network
3.3 Tracking Differentiator
4 Design of FTC and Stability Analysis
4.1 Design of FTC
4.2 Stability Analysis
5 Simulation
6 Conclusions
References
The Impact Dynamics and Simulations of Space Net
1 Introduction
2 Model of Net Structure
3 Impact Dynamic Model of Net Structure
3.1 Impact Detection
3.2 Impact Force
4 Simulation Results
4.1 Analysis of Net Area and Flight Distance
4.2 Analysis of Net Energy
4.3 Analysis of Impact Force
5 Conclusions
References
Multi-modality Fusion Global Localization Method for UGVs in Rough Terrain GNSS-Denied Environments
1 Introduction
2 System Overview
3 Multi-modality Localization
3.1 Multi-modality Fusion Localization Framework
3.2 LiDAR-Based Localization
3.3 Vision-Based Localization
4 Global Localization Correction Using Road Network and Boundary
4.1 Road Network Representation
4.2 Road Boundary Detection
4.3 UGV Positioning
5 Experimental Results
6 Conclusion and Future Work
References
Reform and Practice of “Integrated” Innovation and Entrepreneurship Education Based on New Engineering
1 Introduction
2 Obvious Shortcomings in Innovation and Entrepreneurship Education at Universities
2.1 Insufficient Cognition and Low Positioning
2.2 Imperfection in Practice Teaching System
3 Reform and Practice of “Integrated” Innovation and Entrepreneurship Education Based on New Engineering
3.1 Clear Education Concept
3.2 Improve the Practical Education System
3.3 Comprehensively Guarantee Implementation
3.4 The Practical Effect of Power Electronics Innovation and Entrepreneurship Education
4 Conclusion
References
Performance Analysis of a Mutual-Excited Oscillation Linear Hydraulic Motor
1 Introduction
2 Structure and Operating Principle
3 Mutual-excited Oscillation Mechanism
3.1 Coordination of Two CVOAs
3.2 Mathematical Model of Mutual-Excited Oscillation
4 Steady-State Oscillation Equation
5 Conclusion
References
A New Control Optimization Strategy for Error Identification of Open-loop Hemispherical Resonator Gyroscopes
1 Introduction
2 Modeling of Open-Loop HRG Control System
2.1 Second Order Dynamics Model of Hemispherical Shell Resonator with Complex Errors
2.2 Demodulation Filtering Algorithm
3 ADRC Algorithm Implementation
4 PSO Algorithm Implementation
5 Software Simulation
5.1 Simulation Procedure Design of ADRC Parameter Optimization Based on PSO Algorithm
5.2 Error Identification Results of Open-Loop Control HRG
6 Conclusion
References
Distributed Adaptive Threshold Based Fault Diagnosis for Nonlinear Multi-agent Formation Systems
1 Introduction
2 Pre-knowledge and Problem Setup
2.1 Algebraic Graph Theory
3 Preliminaries and Problem Setup
4 Conclusion
References
Attitude Estimation Algorithm for Flapping Wing Micro Air Vehicle in Strong Vibration Environment
1 Introduction
2 Related Work
3 Flapping Wing Micro Air Vehicle System
3.1 Flapping Wing Micro Air Vehicle Drive System Modeling
3.2 External Acceleration Compensation
4 Adaptive Complementary Extended Kalman Filter for FWMAV
4.1 Algorithm Structure
4.2 Adaptive Improvements for Sage-Husa Adaptive Kalman Filter
5 Simulation Results and Analysis
6 Conclusion
References
Launch Time Sequence Planning for Ballistic Missles Based on Improved PSO Algorithm-12pt
1 Introduction
2 Trajectory Cross-Over Detection and the Establishment of Launch Time Constraint Set
2.1 Trajectory Cross-Over Detection Algorithm
2.2 Launch Time Constraint Set
3 Optimization Model and Algorithms
3.1 Nonlinear Programming Method
3.2 Dual-fitness Particle Swarm Optimization
4 Numerical Simulation
5 Conclusion
References
Cooperative Navigation Method for Small Body Landing of Multiple Landers
1 Introduction
2 Measurement Models
2.1 Cooperative Navigation Scheme
2.2 Optical Camera Principle
2.3 Orbit-Landers Measurement Model
3 Dynamic Model and Navigation Filter
3.1 Dynamic Model of Spacecraft
3.2 Navigation Filter
4 Simulation Analysis
4.1 Initial States
4.2 Simulation Results
5 Conclusions
References
Research on Ghost-Free High Dynamic Range Image Fusion Technology of Space Non-cooperative Target
1 Introduction
2 High Dynamic Range Image Acquisition
2.1 Weight Graph Calculation
3 Ghost Detection and Removal in Dynamic Scenes
3.1 Motion Detection and Motion Area Optimization
3.2 HDR De-ghosting
4 Experimental Verification and Analysis
5 Conclusion
References
A Brain-Inspired Scene Recognition and Visual Navigation Scheme
1 Introduction
2 Brain-Inspired Navigation Model
3 Algorithm
3.1 Acquisition of Self-motion Information
3.2 Recognition and Detection of “Scene Memory”
4 Experiment and Verification
4.1 Experimental Setup
4.2 Performance Verification
5 Conclusions
References
Trajectory Tracking Controller of Underwater Vehicle with Model Uncertainties and External Disturbances
1 Introduction
2 Robust Tracking Controller of the Underwater Vehicle
2.1 Dynamic Model of the Underwater Vehicle in Port-Hamiltonian Frame
2.2 Tracking Controller of Underwater Vehicle
3 Adaptive Control Under Model Disturbance Observer
3.1 Model Disturbance Observer Design
3.2 Adaptive PCH Controller with Disturbance Observer
3.3 Stability Analysis
4 Simulation Results
5 Conclusion
References
Geometric Adaptive Hierarchical Control for Quadrotors with Mass Center Offset and Unknown Inertial Parameters
1 Introduction
2 Problem Formulation and Notation
2.1 Mathematical Preliminaries
2.2 Quadrotor Dynamics with Mass Center Offset
2.3 Disturbance Analysis
3 Trajectory Tracking Controller Design
3.1 Geometric Adaptive Control
3.2 Geometric Disturbance Observer Based Control
4 Simulation Result
4.1 Tracking Performance
4.2 Estimation Performance
5 Conclusion
References
3D LiDAR-Based Localization Methods: An Overview
1 Introduction
2 Point Cloud Registration Based Methods
3 Feature Matching Based Methods
3.1 Statistical Features Matching Based Methods
3.2 Geometric Features Based Methods
4 Deep Learning Based Methods
5 Evaluation and Discussion
5.1 Datasets
5.2 Algorithm Evaluation
6 Summary and Prospect
References
Hierarchical Control Method for Multi-robot Formation
1 Introduction
2 Problem Description
3 Logical Layer Formation Control Strategy
4 Tactical Layer Formation Control Strategy
4.1 Team Switching and Anti-collision Strategies
4.2 Keep in Formation
5 Experimental Verification and Result Analysis
5.1 Simulation Experiment
5.2 Physical Experiment
6 Conclusion
References
On Comprehensive Evaluation of Excellent College Teachers from the Perspective of Fuzzy Mathematics
1 Introduction
2 Construction of Comprehensive Evaluation Model
3 Determine the Weight Index System
3.1 Basic Concepts
3.2 The Product Root Method ch161ref16 is used to Calculate the Maximum Eigenroot and Corresponding Eigenvector
4 Fuzzy Comprehensive Evaluation
4.1 Determination of Evaluation Factor Set U
4.2 Determination of Domain V of Evaluation Grade Theory
4.3 Operation and Evaluation Score of Fuzzy Evaluation Matrix
5 Empirical Research
5.1 Product Root Method for Weight
5.2 Process of Fuzzy Comprehensive Evaluation
6 The Conclusion
References
Multi-beam Jamming Resource Scheduling of UAV Based on Artificial Bee Colony Algorithm
1 Introduction
2 UAV Multi Beam Jamming System
2.1 Composition of Multi-beam Jamming System
2.2 Key Index of Jamming Effectiveness Evaluation
3 Scheduling Model Based on Artificial Bee Colony Algorithm
3.1 Scheduling Principle of Artificial Bee Colony Algorithm
3.2 Artificial Bee Colony Algorithm Process
4 Simulation Experiments Analysis
5 Conclusion
References
Aggregation of Magnetic Particles in a Triangular Oscillating Magnetic Field
1 Introduction
2 Mechanism
3 Triangular Oscillating Magnetic Field
4 Numerical Simulation
5 Conclusion
References
Research on Vibration Load Spectrum of Aero Engine Control System Based on Fatigue Damage Equivalence
1 Introduction
2 Fatigue Damage Equivalence
2.1 Fatigue Damage Spectrum
2.2 Life Cycle Vibration Load Spectrum
2.3 Standard Vibration Load Spectrum
2.4 Accelerated Vibration Load Spectrum
3 Vibration Load Spectrum Compilation
3.1 Vibration Load Spectrum of Each State Level
3.2 Life Cycle Vibration Load Spectrum
3.3 Standard Vibration Load Spectrum
3.4 Accelerated Vibration Load Spectrum
4 Conclusion
References
An Autonomous Navigation Method Based on Artificial Celestial Observation Using Star Sensors
1 Introduction
2 Feasibility Analysis of Positioning
2.1 The Reflective Ability of Satellite
2.2 The Selection of Observation Satellite
3 The Method of ACNS
3.1 Composition of the Navigation System
3.2 The Method of ACNS with Binary Star Sensor
4 SINS/ACNS Integrated Navigation Experiment
4.1 Experimental Conditions
4.2 Simulation Results
5 Conclusion
References
Finite-Time Tracking Control of Underactuated Surface Vessels with Disturbance Compensation
1 Introduction
2 Model of Ship Motion
3 Controller Construction and Stability Proof
4 Simulation
5 Conclusion
References
Research on Fault Tolerant Control Technology of Highly Reliable Aerospace Servo Motor
1 Introduction
2 Scheme Selection of Fault Tolerant Servo Motor
3 One Phase Fault-Tolerant Algorithm Derivation and Simulation Analysis Under Open-Circuit Fault
4 Simulation Analysis of Fault - Tolerant Control Strategy on Matlab Platform
5 Experimental Verification of Fault Tolerant Motor Control System
5.1 No-Load Test and Analysis
5.2 Load Test and Analysis
6 Conclusion
References
MBSE-Based Application System Design for Medical Colleges--Taking Clinical Staff Data Management System as an Example
1 Background Analysis
2 The Overall System Construction Ideas
3 Explanation of Model Diagram Construction Results
3.1 Define Use Case Diagrams According to User Requirements
3.2 Building Block Definition Diagram Based on Use Case Diagram
3.3 Creation of Dynamic View State Machine Diagram
3.4 Generate Dynamic Activity Diagram
3.5 Generate Dynamic Sequence Diagram
4 Summary
References
Adaptive High-Order Sliding Mode Based Fault Tolerant Control of RLV
1 Introduction
2 RLV Dynamics and Control Objective
3 Adaptive HOSM Based FTC
4 Simulation Results
5 Conclusions
References
Pneumatic Lag Analysis and Testing of Civil Aircraft Airspeed System
1 Introduction
2 Pneumatic Lag Analysis of Airspeed System
3 Measurement of Pneumatic Lag of Airspeed System
3.1 Test Hypothesis
3.2 Test System
3.3 Test and Data Analysis
4 Conclusion
References
Trajectory Optimization for Launch Vehicle Based on a Hybrid Approach
1 Introduction
2 Ascent Trajectory Optimization Problem Formulation
2.1 Ascent Dynamics
2.2 The Analysis of Optimal Conditions
2.3 Constraint Conditions
3 Vacuum Solution
3.1 The Analysis Form of Costage Vectors
3.2 The Initial Guess Value of Vacuum Solution
3.3 Variation Analysis
4 Atmospheric Solution
4.1 Endo-Atmospheric Analysis
4.2 Gauss Pseudo-spectral Method
5 Numerical Demonstration
5.1 Vacuum Solution
5.2 Endo-Atmospheric Solution
6 Conclusion
References
Direct Lift Control of Carrier-Based Aircraft Based on Thrust Vector
1 Introduction
1.1 Thrust Vector Technology
1.2 Thrust Vectoring Engine
1.3 Representation of the Thrust Vector Acting on the Aircraft
2 Carrier-Based Aircraft Landing Control Method
2.1 Direct Lift Control Method
2.2 Track Angular Velocity Control Loop
3 Control Simulation of Thrust Vectoring Carrier-Based Aircraft
3.1 Longitudinal Control of Thrust Vectoring Carrier Aircraft
3.2 Landing Control of Thrust Vectoring Carrier Aircraft
4 Conclusion
References
Distributed Communication Based Cooperative Multi-aircraft Attack Guidance Law
1 Introduction
2 Proposed
2.1 Graph Theory
2.2 Vehicle-Target 3D Motion Model
2.3 Vehicle Guidance Law in LOS Coordinate System
3 Simulation Results
4 Conclusion
References
Characteristic Model and Trajectory Tracking Compound Control for Coaxial Twelve-Rotor UAV
1 Instruction
2 Dynamic Model of Twelve-Rotor
3 Characteristic Model of Twelve-Rotor
4 Trajectory Tracking Compound Controller
4.1 Golden Section Adaptive Feedback Controller
4.2 RBFNN Feedforward Monitoring Controller
5 Numerical Simulations Results
6 Prototype Experiment Results
7 Conclusion
References
Exploration Method Considering Received Signal Strength of Communication
1 Introduction
2 Related Work
2.1 Autonomous Exploration Algorithm
2.2 Exploration Strategies in Poor Signal Conditions
3 Methodology
3.1 TARE Method
3.2 Radio Signal Strength Model
3.3 Proposed SBARE Method
4 Experiments
4.1 Building Scene Simulation Experiment
4.2 Tunnel Scene Simulation Experiment
5 Conclusion
References
Sliding Mode Attitude Control of Flexible Spacecraft with Rotational Components
1 Introduction
2 Problem Formulation
2.1 Kinematic Model
2.2 Dynamic Model of the Spacecraft
3 Controller Design
4 Numerical Simulation Results
5 Conclusion
References
Research Status and Application of Mission Assignment Method and Cooperative Positioning and Navigation for Cluster Aircraft
1 Introduction
2 Task Allocation Method for Cluster Aircraft
2.1 Contract Net
2.2 Simulate Social Creatures
3 Cooperative Positioning of Swarm Aircraft
3.1 Measure the Relative Distance of the Aircraft
3.2 Measure the Relative Angle of the Aircraft
3.3 Hierarchical Collaborative Navigation System
4 Summary and Prospect
References
Finite-Time Converged Cooperative Homing Guidance Law for Salvo Attack
1 Introduction
2 Problem Formulation and Preliminaries
2.1 Cooperative Engagement Dynamics
2.2 Communication Topology Between Missiles
3 Finite-Time Converged Cooperative Guidance Law Design
4 Simulation Results
5 Conclusion
References
Event-Triggered Coordinated Control Based on Disturbance Observer for Second-Order Nonlinear Systems
1 Introduction
2 Problem Statement
3 Main Results
3.1 Controller Design
3.2 Stability Analysis
4 Simulation Results
5 Conclusion
References
Distributed Formation Control and Collision Avoidance for Heterogeneous UAV Swarm
1 Introduction
2 Preliminaries
2.1 Kinematic Model of UAV
2.2 PSO Algorithm
3 Collision Avoidance and Formation Method Based on Heterogeneous Roles
3.1 Distributed Model Predictive Control Framework
3.2 Heterogeneous Roles and Design of Cost Function
3.3 Collision Avoidance and Formation Strategy
4 Simulation
4.1 Simulation Setup
4.2 Simulation Results
5 Conclusion
References
An Evaluation Model of UAV Autonomous Capability Based on Cloud Model and AHP
1 Introduction
2 Evaluation Index System of UAV Autonomous Capability
2.1 Combat Scenario
2.2 Combat Activities
2.3 Activities-Capability Mapping
2.4 The Evaluation Index System
3 Evaluation Method of UAV Autonomous Capability
3.1 Determining Indexes Weights Based on AHP
3.2 Calculate the Evaluation Value Based on Cloud Model
3.3 Calculate the Evaluation Value of the Upper Index
4 Simulation of Evaluation Model
4.1 Determine the Weight
4.2 Determine the Evaluation Set
4.3 Determine the Evaluation Results
5 Conclusion
References
Double Closed-Loop Integral Sliding Mode Control for Underactuated UUV with Uncertain Dynamics
1 Introduction
2 UUV Mathematical Model
3 Control Design
3.1 The Position-Loop ISMC
3.2 The Velocity Loop ISMC
3.3 Adaptive RBFNN
4 Simulation and Result Analysis
5 Conclusion
References
On Finite-Time Path Tracking Control of Underactuated UUV Based on Integral Terminal Sliding Mode
1 Introduction
2 UUV Model
3 Extended State Observer Design
4 Design of Integral Terminal Sliding Mode Control
4.1 Outer-Loop Controller Design
4.2 Inner-Loop Controller Design
4.3 Stability Analysis
5 Simulation Results
6 Conclusion
References
Vacuum Ratio of Vibrating Suction Method: Proposing, Mathematical Modeling, and Experiment
1 Introduction
2 Related Works
2.1 Realization of Original Idea
2.2 New Problem
3 Mathematical Model of Vacuum Ratio
3.1 Analysis of the Sine Vibrating Mode
3.2 Analysis of the Square Wave Vibrating Mode
3.3 Deduction of Vacuum Ratio
4 Experimental Method
4.1 Experimental Setup
4.2 Experimental Procedure
5 Experimental Results and Discussion
5.1 Comparison of “Low Frequency”
5.2 Comparison of “High Frequency”
6 Conclusions
References
Research of UAV Cluster Motion Based on Swarm and Artifical Potential Field Fusion Algorithm
1 Introduction
2 UAV Swarm Motion Control
2.1 Bee Colony Three-Constraint Model
2.2 Bee Colony Three-Constraint Model
3 Artifical Potential Field Algorithm
4 Algorithm Implementation Effect
5 Conclusion
References
Modal and Strength Analysis of High Speed Rotor Based on Magnetic Bearing
1 Introduction
2 Magnetic Levitation High Speed Motor Structure
3 Rotor Strength Analysis
References
Relative/AbSwectsolute Altitude Fusion Technology Oriented to the Complex Environment of Plateau Airports
1 Introduction
2 The Unified Altitude Datum Modeling
2.1 Definition of Different Altitude Measurements
2.2 The Method of Unifying Altitude Datum
3 The Relative/Absolute Altitude Fusion System Modeling and Algorithm Design
3.1 The State Equation of the System
3.2 The Method of Full-Plane Fitting
3.3 The Measurement Equation of the System
4 Simulation and Analysis
4.1 Simulation Condition Setting
4.2 Simulation Results and Analysis
5 Conclusion
References
The Differential Game Cooperative Guidance Law for the Single Target
1 Introduction
2 Problem Formulation
3 The Differential Game Guidance Law
4 The Differential Game Cooperative Guidance Law
5 Simulation Results
6 Conclusions
References
Research on Working Mode and High Precision Control Method of Space Accelerometer
1 Introduction
2 Working Mode and Control Framework
3 Dynamic Modeling of Space Accelerometer
3.1 Dynamic Modeling
3.2 Characteristic Analysis of Model
3.3 State Space Model Description
4 Controller Design Based on Adaptive Observer
4.1 Adaptive Observer Design
4.2 Disturbance Compensation Control Law
5 Simulation
6 Conclusion
References
Trajectory Tracking Control of Bionic Fish Based on CPG-Nonsingular Terminal Sliding Mode
1 Introduction
2 Motion Control Model of the Bionic Fish
2.1 The Bionic Fish Platform
2.2 Swimming Control of the Bionic Fish Based on CPG
2.3 Conversion Function
3 Design of Trajectory Tracking Controller for the Bionic Fish
3.1 The Problem of the Bionic Fish Trajectory Tracking Control
3.2 The Problem of Controller Design
4 The Simulation Verification of the Controller
5 Conclusion
References
An Event-Based Angle Measurement Method
1 Introduction
2 Event-Based Visual Angle Measurement
2.1 Event Frame Reconstruction
2.2 Angle Measurement
3 Results
3.1 Measurement Speed Experiments
3.2 Angle Measurement Experiments
4 Conclusion
References
Improved A and Fuzzy Dynamic Window Based Dynamic Trajectory Planning for an UAV
1 Introduction
2 Improved A Algorithm
2.1 Improved Heuristic Function
2.2 Path Smoothness Optimization
3 Fuzzy Dynamic Window Algorithm (FDWA)
3.1 Trajectory Prediction Model of the UAV
3.2 Velocity Space Sampling
3.3 Improved Evaluation Function
3.4 Fuzzy Logic Rules
3.5 Attitude Angles Adjustment
4 Simulation Results
4.1 Planning Results of the Improved A
4.2 Planning Results of the Improved Hybrid Algorithm
5 Conclusion
References
Probabilistic Method-Based Control Design for Attitude System of Hypersonic Vehicles
1 Introduction
2 Attitude Model of Hypersonic Vehicle
3 Probability Method Based on R-F and SORA
3.1 Simplification of Probability Problem Based on R-F Method
3.2 SORA Probability Optimization
4 Application on Attitude System of Hypersonic Vehicle
5 Conclusions
References
Finite-Time and Fault-Tolerant Cooperative Guidance Against Maneuvering Target with Time and Angle Constraints
1 Introduction
2 Preliminaries and Problem Formulation
3 Main Results
3.1 Target Acceleration Estimation
3.2 The Design of Cooperative Guidance Laws
4 Numerical Simulation
5 Conclusions
References
Methods for Reconstruction of Abnormal Velocity Data on Characteristic Points Based on Historical Data
1 Introduction
2 Analysis of Data Characteristics at Feature Points
3 Abnormal Data Reconstruction Based on Historical Data
4 Data Verification and Analysis
5 Conclusion
References
Effectiveness Evaluation of Spacecraft Orbit Maneuver Based on Fuzzy Comprehensive Evaluation Method
1 Introduction
2 The Design of Effectiveness Evaluation Index and Its Model
2.1 Modeling and Simulation of Control Domain
2.2 Modeling and Simulation of Response Domain
2.3 Modeling and Simulation of Precision Domain
2.4 Timing Domain Modeling and Simulation
3 Fuzzy Comprehensive Evaluation Model
3.1 Influencing Factors of Orbital Maneuver Effectiveness
3.2 Evaluation Indexes of Orbital Maneuver Effectiveness
3.3 Evaluation Model of Orbital Maneuver Effectiveness
3.4 Simulation Analysis
4 Conclusion
References
Agile Turn Guidance for Air-to-Air Missile with Linear Gauss Pseudospectral Method
1 Introduction
2 Basic Theory of LGP Method
3 LGP for Guidance Command of Agile Turn
3.1 Modeling of Agile Turn
3.2 The Solving Procedure of LGP
4 Simulation Results
4.1 Correction Effect and Feasibility Analysis
4.2 Monte Carlo Simulation Results
5 Conclusion
References
An Incremental Nonlinear Dynamic Inversion with Prescribed Performance for Damaged Aircraft
1 Introduction
2 Modeling of Damaged Aircraft
3 Control Target and Error Transform
4 Prescribed Performance Incremental Control
5 Simulation
6 Conclusion
References
Underactuated Attitude Control of Three-Body Tethered Spacecraft During Spinning for Artificial Gravity
1 Introduction
2 Modeling of Three-Body Tethered Spacecraft
2.1 Hypotheses and Modeling
2.2 Task Objective
3 Underactuated Attitude Controller Design
3.1 Closed-Loop Error System
3.2 Stability Proof
4 Numerical Simulation
4.1 Dynamic Behavior of Spinning Tethered Spacecraft
4.2 Spin-Up with Underactuated Attitude Controller
5 Conclusion
References
Event-Triggered Finite-Time Adaptive Coordinated Control for Spacecraft Formation Flying Under Actuator Faults
1 Introduction
2 Problem Description
3 Main Results
4 Simulation Results
5 Conclusion
References
Digital Twin Modeling for Aerospace CMG Based on Energy Analysis
1 Introduction
2 CMG System-Level Energy Analysis and DT Modeling
2.1 Energy Balance Analysis of CMG Rotor System
2.2 Energy Balance Analysis of CMG Servo-Controlled Gimbal System
3 Power Loss and Degradation Parameter Analysis
3.1 Friction Loss
3.2 Motor Electromagnetic Loss
3.3 Determination of Degradation Parameters
4 Experiment Verification
5 Conclusion
References
Research on IMU/EMG Gesture Recognition Based on Improved CNN
1 Introduction
2 Data Preparation
2.1 Data Acquisition
2.2 EMG Data Preprocessing
2.3 ACC Data Preprocessing
2.4 Active Segment Segmentation
2.5 Data Processing
3 Network Construction
4 Model Training
5 Conclusion
References
A Hybrid Method for Online Safe Trajectory Generation in Quadrotor Flight
1 Introduction
2 Problem Definition
3 Optimal Trajectory Planning
3.1 Calculate the Optimal Trajectory
3.2 Heuristic Sampling
3.3 Informed Kinodynamic RRT
4 Trajectory Optimization with Multiple Constraints
4.1 B-Spline Trajectory Optimization
4.2 Method
5 Simulation Results
5.1 Asymptotic Optimality Analysis
5.2 Informed Ellipsoid Subset
5.3 Advantages of Trajectory Optimization
6 Experimental Results
References
High Precision and Fast Initial Alignment for Vehicle Mounted Guided Rocket in Erection Process
1 Introduction
2 Alignment Process and Principle
2.1 Alignment Process
2.2 Alignment Algorithm
3 Numerical Simulation
4 Conclusion
References
Kinematics and Stability Analysis of a Hexapod Robot with Backbone Joint
1 Introduction
2 Robot Model
2.1 Mechanical Structure
2.2 Working Modes
3 Kinematic Analysis
3.1 Model Simplification
3.2 Forward Kinematics and Workspace
3.3 Inverse Kinematics
4 Stability Analysis
4.1 Calculation Formula of Centroid
4.2 Moving Range of the Total Center of Mass
4.3 Requirements for Stable Manipulation on Flat Ground
5 Experiments
6 Conclusion
References
An Adaptive Sliding Mode Compound Control Method of Interceptors
1 Introduction
2 Model of Compound Control Interceptors
3 Adaptive Compound Control Algorithm Design
3.1 Adaptive Control Law Design
3.2 Allocation Algorithm Design
4 Simulations
5 Conclusion
References
Decentralized Cooperative Control of Electromagnetic Formation Using Robust 6-DOF Cyclic Pursuit Approach
1 Introduction
2 Background and Preliminaries
2.1 Relative Translational and Attitude Dynamics
2.2 Electromagnetic Force and Torque Model
3 Patterns of 6-DOF Formation
3.1 Formation Patterns
3.2 Attitude Patterns
4 Robust 6-DOF Cyclic Pursuit Control
4.1 6-DOF Cyclic Pursuit Control
4.2 Parameters Tuning
4.3 Modified ESO Design
5 Numerical Simulations
6 Conclusion
References
Distributed Event-Triggered Formation Control for a Multi-robotic Fish System
1 Introduction
2 Preliminaries and Problem Formulation
3 Event-Triggered Formation Control System
3.1 3-D Formation Control Framework
3.2 Position-Based Formation Control Law
3.3 Event-Triggered Mechanism
4 Simulation Analysis
5 Conclusion
References
Two-Channel CNN Model For Analog Circuit Fault Diagnosis
1 Introduction
2 Specific Methods
2.1 Fast Fourier Transform
2.2 Wavelet Transform Time-Frequency Diagram
2.3 Convolutional Neural Network
3 Experimental Analysis
3.1 Classification Result Analysis
3.2 Feature Visualization
4 Conclusion
References
Switching LPV Tracking Controller Design for Longitudinal Motion of Aircraft with Uncertain Scheduling Parameters
1 Introduction
2 Model Description and Problem Formulation
3 Proposed Switching LPV Controller
4 Simulation Results
5 Conclusions
References
Input-Constrained Fuzzy Adaptive Control for Hypersonic Flight Vehicles Using System Extension Approach
1 Introduction
2 Problem Description
2.1 Problem Description
2.2 Preliminaries
3 Main Results
3.1 System Extension
3.2 Controller Design
4 Stability
5 Simulation
6 Conclusion
References
Order Reduction Control Design for Carrier-Based Aircraft Automatic Carrier Landing System
1 Introduction
2 Model Truncation and Mathematical Preparation
3 Longitudinal ACLS Design
3.1 APCS Design
3.2 CAS Design
3.3 AFCS Design
4 Simulation
5 Conclusion
References
Air Combat Game Based on Behavior Repetition
1 Introduction
2 Modeling
2.1 Aircraft Model and Implementation
2.2 Basic Manipulation Action Library
3 Countermeasures Based on Imitation Learning
3.1 The Recurrence of 1V1 Antagonism
3.2 Behavior Repetition of Synergy Strategy
4 Simulation Verification
4.1 Construction of Adversarial Environment
4.2 1V1 Confrontation Simulation Verification
4.3 Collaborative Policy Simulation Verification
5 Summary
References
Formation Control of UAVs with Prescribed Performance Based on Backstepping Method
1 Introduction
2 Preliminaries
2.1 Mathematical Model of UAV Formation
2.2 Tracking Error Model of UAV Formation
2.3 Prescribed Performance Control
3 Formation Controller Design
3.1 Model Transformation
3.2 Control Design
3.3 Proof of Stability
4 Numerical Simulation Analysis
5 Conclusion
References
Synchronous Vibration Suppression of MSCMG Using a Novel Dual-Channel Phase-Shift Notch Filter
1 Introduction
2 MSCMG System Dynamic Modeling with Mass Imbalance
3 Dual-Channel Phase-Shift Notch Filter Design
3.1 Algorithm Description
3.2 Realization of Synchronous Frequency Current Suppression
3.3 Stability Analysis
4 Simulation and Experimental Results
4.1 Experimental Setup
4.2 Simulation Results
4.3 Experimental Results
5 Conclusion
References
Fixed-Time Dynamic Surface Fault-Tolerant Tracking Control for UAV with Actuator Fault
1 Introduction
2 Problem Formulation
2.1 UAV Model Description
2.2 Actuator Faults Model
3 Fault-Tolerant Controller Design
3.1 Disturbance Observer Design
3.2 Controller Design
4 Stability Analysis
5 Simulation Results
6 Conclusions
References
Temperature Field Analysis of Heating Furnace of Superplastic Forming Equipment Based on Thermal Resistance Network Model
1 Introduction
2 Superplastic Forming System
2.1 The System Model
2.2 Assumptions
3 Thermal Resistance Network Model
3.1 Thermal Resistance Network Principle
3.2 Horizontal Subdivision of Thermal Resistance Network
3.3 Finite Element Method
3.4 Comparison of Results
4 Conclusion
References
Application of ZUPT for BDS/INS Integrated Navigation System with Intelligent Agricultural Machinery
1 Introduction
2 System Design
2.1 BDS/INS Integrated Navigation System Architecture Design
2.2 Integrated Navigation Algorithm Based on EKF
3 ZUPT Algorithm Design
4 Test Results and Analysis
5 Conclusion
References
An Ellipsoid-Based Interval Estimation Method for Continuous-Time Switched Systems
1 Introduction
2 Preliminary and Problem Formulation
3 Main Results
3.1 Peak-to-Peak T-N-L Observer Design
3.2 Ellipsoid-Based Interval Estimation
4 Simulations
5 Conclusion
References
A Developmental Anti-collision Architecture for the Brain-Like Event-Related Potential Cycle in UAVs
1 Introduction
2 A Developmental Anti-collision Architecture for ERP Cycle in Humans
3 A Brain-Like ERP Model for Autonomous Anti-collision of UAVs
4 Simulation and Analysis
5 Conclusions
References
A Joint Longitudinal and Lateral Guidance Scheme for Reentry Gliding Phase of Hypersonic Vehicles
1 Introduction
2 Mathematical Model of Hypersonic Vehicle
2.1 Hypersonic Vehicle Motion Equations
2.2 Longitudinal Motion Model of the Vehicle
2.3 Lateral Motion Model of the Vehicle
3 Hypersonic Vehicle Reference Trajectory Tracking Guidance Law Design
3.1 Longitudinal Guidance Law Based on GFTSM
3.2 Robustness Analysis
3.3 Lateral Guidance Law Based on ESO
4 Simulation
5 Conclusion
References
A Multi-satellite Swarm Pursuit-Evasion Game Based on Contract Network Protocol and Optimal Lambert Method
1 Introduction
2 Problem Description
2.1 Large-Scale Multi-satellite Swarm Pursuit-Evasion Game Scene Description
2.2 Modeling
3 Target Allocation in the Information Layer via CNP Algorithm
4 Orbital Maneuvering Strategy in the Physical Layer Based on Optimal Lambert Problem
4.1 Optimal Lambert Method in Long-Range Rendezvous Phase
4.2 Optimal Lambert Correction Method in Short-Range PE Game Phase
5 Simulations
5.1 Simulation Setup
5.2 Simulation Result
6 Conclusion
References
Window Type Detector for Stealthy False Data Injection Attack in Cyber-Physical Systems
1 Introduction
2 Problem Statement
2.1 System Model
2.2 Model of Attack Sequence
3 Window Type Detector
4 Illustrative Examples
5 Conclusion
References
Distributed Fault-Tolerant Consensus Control for Linear Multi-Agent System with K-Step Hierarchical Protocol
1 Introduction
2 Topology Description and Problem Formulation
2.1 Topology Description
2.2 Agent Formulation
2.3 Fault Formulation
3 Distributed K-step Hierarchical Fault-Tolerant Co-Controller Design
3.1 K-Step Hierarchical Controller Design
3.2 Fault Identification
3.3 Speed Regulation Algorithm
4 Numerical Simulation
5 Conclusion
References
Modeling and Linear Active Disturbance Rejection Control of a New Morphing Quadrotor
1 Introduction
2 The Morphing Quadrotor System Modeling
2.1 Calculation of the Morphing Quadrotor's Barycenter
2.2 Calculation of the Morphing Quadrotor's Inertia Tensor
2.3 Calculation of the Morphing Quadrotor's Torques
2.4 The Newton-Euler Method Modeling
2.5 Control Allocation
3 Controller Design and Stability Analysis
3.1 The LADRC Method Design
3.2 Stability Analysis
4 Simulation
5 Conclusion
References
Multi-constraint Online Guidance Method Based on Meta-learning
1 Introduction
2 The Optimal Control Problem of Guidance
3 The Proposed Meta-learning-based Online Guidance Method
3.1 Network Structure
3.2 The Training of FNN Using Meta-learning
4 Simulation Tests
4.1 Scenario 1: Large Difference Exists Between Baseline and New Guidance Tasks
4.2 Scenario 2: Small Difference Exists Between Baseline and New Guidance Tasks
5 Conclusion
References
Research on Cross-Media Control of Amphibious Multi-rotor Vehicle Based on Sliding Mode Control Technology
1 Introduction
2 Dynamic Model of Water–Air Amphibious Multi-rotor Vehicle
3 Mechanical Model of Amphibious Multi-rotor Vehicle
3.1 Vehicle Static Analysis and Modeling
3.2 Vehicle Fluid Dynamics Analysis and Modeling
4 Design of Controller for Amphibious Multi-rotor Vehicle
4.1 Design of Control Rate of Full Drive Subsystem
4.2 Design of Control Rate of Underdriven Subsystem
5 Result
6 Conclusion
References
Unsupervised Monocular Visual Odometry with Lightweight Depth Architecture
1 Introduction
2 Related Work
2.1 Visual Odometry
2.2 Depth Estimation
2.3 Attention Mechanism
3 Method
3.1 Network Architecture
3.2 Objective Function
4 Experiments
4.1 Dataset
4.2 Training
4.3 Evaluation
5 Conclusion
References
Diving Guidance for Hypersonic Vehicles with Terminal Velocity Constraint
1 Introduction
2 Equations of Motion
3 Guidance Method with Terminal Velocity Constraint
3.1 Longitudinal Guidance Method
3.2 Lateral Guidance Method
4 Simulation Analysis
4.1 Nominal Case
4.2 Dispersed Cases
5 Conclusions
References
CAT III Auto-landing Modal Design and Simulation for Civil Aircraft
1 Introduction
2 Problem Description and Preparatory Knowledge
2.1 Problem Description
2.2 Preparatory Knowledge
3 Modal Design
3.1 Modal Logic
3.2 Upgrading and Downgrading of Approach Type
3.3 Modal Conflict
4 Simulation
4.1 Upgrading and Downgrading of Approach Type
4.2 Modal Conflict
5 Conclusion
References
Adaptive Optimal Control Method for Hypersonic Variable Sweep Vehicle
1 Introduction
2 Vehicle Models
3 Adaptive Optimal Control
3.1 Adaptive Dynamic Programming
3.2 Critic Network Update
3.3 Proof of Stability
4 Adaptive Optimal Flight Control
4.1 Design of Velocity Subsystem
4.2 Design of Altitude Subsystem
5 Testing and Analysis
6 Conclusion
References
A Survey on Unmanned Aerial Vehicle Swarm Communication and Navigation
1 Introduction
2 UAV Swarm System
3 UAV Swarm Communication Network
3.1 Cluster Communication Architecture Based on Infrastructure
3.2 Cluster Communication Architecture Based on Ad-hoc Network
4 UAV Swarm Autonomous Navigation Technology
4.1 Bionic Navigation
4.2 Visual-Inertial Integrated Navigation
4.3 Collaborative Navigation
5 Conclusion
References
Estimator-Based Finite-Time Formation-Containment Control for Multiple Underactuated Quadrotors
1 Introduction
2 Preliminary
2.1 Graph Theory
2.2 Problem Statement
3 Main Results
3.1 Formation-Containment Estimate
3.2 Estimation Tracking Control
4 Simulations
5 Conclusions
References
Fault Detection Technology and Intelligent Monitoring Platform for Substation Unmanned Monitoring System
1 Introduction
2 Entity Dataset
3 Entity Recognition System
4 Substation Status Intelligent Recognition System
4.1 Intelligent Recognition System
4.2 Intelligent Identification of One-Time Wiring Diagram
5 Conclusion
References
Research on Autonomous Collision Avoidance Method of Cooperative UAV
1 Introduction
2 Autonomous Anti-collision System Design
2.1 System Architecture
2.2 Introduction of ADS-B System
2.3 The Basic Principle of Collision Avoidance
2.4 Command Generation
2.5 Control System Design
3 Simulation
3.1 Scenario Description
3.2 Simulation Results and Analysis
4 Prospect
References
Supplement Decision-Making of Operation Hybrid Dynamic System Based on Improved Lanchester Equation
1 Introduction
2 Description of the Satellite Swarm Confront System
2.1 Problem Description
2.2 Improved Lanchester Equation
2.3 Multi-phase Combat Pattern
3 Optimal Supplement Decision-Making Method
3.1 Objective Function
3.2 Primal-Dual Interior Point Method
4 Simulation
5 Conclusion
References
Research on the Granger Causality of Pressures in the Liquid Oxygen Kerosene Rocket Engine Start-Up Process
1 Introduction
2 Data Acquisition and Preprocessing
3 Granger Causality Analysis
3.1 Data Stationary Test
3.2 Test of Co-integration Relationship
3.3 Granger Causality Test
3.4 Analysis of Impulse Response Function
4 Conclusions
References
Evaluation of the Control Allocation Methods for DEP-VTOL Aircraft
1 Introduction
2 Formulation of the Control Allocation Problem
3 Evaluation of Control Allocation Methods
3.1 Standard Pseudo-inverse Method
3.2 Weighted Pseudo-inverse Method
3.3 Cascaded Generalized Inverses Method
3.4 The Optimization-Based Method: Linear Programming
4 Simulation and Experiment
5 Conclusion
References
Cooperative Operation Path Planning for Multiple Plant Protection UAVs Based on Bi-level ACO
1 Introduction
2 Problem Description and Modeling
3 Bi-level ACO
3.1 Task Assignment Level ACO
3.2 Path Planning Level ACO
4 Result and Discussion
5 Conclusion
References
Spacecraft Attitude Coordination Control Strategy for Rapid Construction of Laser Link
1 Introduction
1.1 Analysis of Uncertain Range of Platform Relative Motion State
1.2 Angle Range of Laser Divergence
1.3 Summary
2 Problem Description
3 Spacecraft Attitude Coordinated Control Method for Rapid Construction of Laser Link
3.1 Spacecraft Attitude Coordinated Control Method for Rapid Construction of Two-Satellite Laser Link
3.2 Scan Times Optimization
3.3 Three-Arm Six-Channel Laser Link Construction Scheme
4 Conclusion
References
Trajectory Optimization and Control Algorithm of Perch Landing for Fixed-Wing Aircraft
1 Introduction
2 Model
3 Trajectory Planning
4 Longitudinal Control Method
5 Lateral Control Method
6 Conclusion
References
Fully Distributed Time-Varying Formation Control of Quadrotors
1 Introduction
2 Problem Statement
2.1 Basic Concepts on Graph Theory
2.2 Problem Formulation
3 Distributed Formation Control Law
4 Experimental Results of Quadrotor Formation
5 Conclusion
References
Distributed Fault-Tolerant Attitude Consensus Control for Multiple Satellites
1 Introduction
2 Preliminaries and Problem Statement
2.1 Preliminaries on Graph Theory
2.2 Rotational Dynamics and Actuator Faults
2.3 Problem Formulation
3 Attitude Consensus Control Protocol
4 Numerical Simulation
5 Conclusions
References
Research on GPS/INS Polar Integrated Navigation Algorithm Based on Abscissa System
1 Introduction
2 Navigation Algorithm in Abscissa System
2.1 Definition of Abscissa System
2.2 Layout of Inertial Navigation Mechanics in Abscissa
3 Integrated Navigation Algorithm in Polar Region Abscissa System
3.1 Equation of State
3.2 Measurement Equation
3.3 Design of Filter Based on UKF
4 Simulation Analysis
4.1 Parameter Setting
4.2 Simulation Experiment
5 Conclusion
References
Application of Adaptive Short Time Fourier Transform in Rocket Telemetry Data Processing
1 Introduction
2 Short-Time Fourier Transform
2.1 The Principle Analysis of STFT Time-Frequency Analysis Method
3 STFT Based on Adaptive Window
3.1 FM Index
3.2 TLDF-Based Adaptive STFT
4 Experimental Analysis and Comparison
4.1 Experiment 1
4.2 Experiment 2
4.3 Experiment 3
4.4 Conclusion
References
Robust Coordinated Tracking of Saturated Multi-agent Systems: A Dynamic Input Saturation Reconstruction Approach
1 Introduction
2 Problem Formulation and Preliminaries
3 Main Results
4 Simulation
5 Conclusion
References
Rotordynamic Analysis of Different Assembly Processes of Rotor for Magnetic Suspended Turbomolecular Pump
1 Introduction
2 Configuration of Prototype
3 Method
3.1 Rotor Strength Analysis
3.2 Modal Analysis
4 Analysis
4.1 Strength Analysis
4.2 Modal Comparative Analysis of Different Processes
4.3 Modal Analysis of Laminates
4.4 Modal Analysis of Rotor Assemblies
5 Experimental Test
6 Conclusion
References
Fractional-Order Sliding-Mode Fault-Tolerant Control of Unmanned Aerial Vehicles Against Actuator Faults with Time-Delay-12pt
1 Introduction
2 Preliminaries and Problem Formulation
2.1 UAVs Dynamics
2.2 Actuator Fault Model
2.3 Fractional-Order Calculus
2.4 Control Objective
3 Main Results
3.1 Control Signal Design
3.2 Stability Analysis
4 Simulation
5 Conclusion
References
Nussbaum-Based Finite-Time Adaptive Fault-Tolerant Tracking Control Against Actuator-Sensor Faults and Input Saturation
1 Introduction
2 Preliminaries and Problem Formulation
2.1 UAV Model
2.2 UAV Model Under Actuator-Sensor Faults
2.3 Preliminary Knowledge
2.4 Control Objective
3 Main Results
3.1 Finite-Time Adaptive Fault-Tolerant Tracking Control Design
3.2 Stability Analysis
4 Simulation Results
5 Conclusions
References
Reinforcement Learning Control for Hypersonic Morphing Flight Vehicle with Identification of Dynamic Parameter
1 Introduction
2 Mathematical Model of Hypersonic Morphing Flight Vehicle
2.1 Longitudinal Model of Hypersonic Morphing Flight Vehicle
2.2 Small Disturbance Equation of Pitch Channel
2.3 Morphing Process
3 Reinforcement Learning Control with Dynamic Parameter
3.1 Control Strategy
3.2 Deep Deterministic Policy Gradient Algorithm
3.3 The State Vector and Action Vector
3.4 Reward Function
4 Simulation Results
4.1 Simulation A
4.2 Simulation B
4.3 Simulation C
5 Conclusion
References
Receiver Stabilization During Aerial Refueling with Dynamic Surface Control
1 Introduction
2 Problem Formulation
3 Stabilization Control for the Variable-Mass Receiver
4 Simulation
5 Conclusion
Appendix
References
GNSS Fault Tolerant Navigation Algorithm Based on Factor Graph Optimized Batch Covariance Estimation
1 Introduction
2 Factor Graph Model of GNSS
2.1 General Factor Graph Model
2.2 Factor Graph Model of GNSS
3 Graph Optimized Fault Tolerance Algorithm
3.1 M-estimation
3.2 Batch Covariance Estimation
4 Data and Analysis
4.1 Environment Construction and Data Acquisition
4.2 GNSS Optimization Results and Analysis
5 Conclusion
References
Lateral Attitude Control of Long Endurance Solar-Powered UAV
1 Introduction
2 Aircraft Layout and Aerodynamic Characteristics
2.1 Analysis of Aerodynamic Characteristics
2.2 Analysis and Comparison of Aerodynamic Derivatives
2.3 The Dihedral Wing Effects
3 Analysis of Lateral Characteristics
3.1 Characteristics of Mode
3.2 Roll Attitude Limitation
4 Design of Lateral Attitude Control Law
4.1 Design of Control Scheme
4.2 Simulation and Flight Test
5 Conclusion
References
Moving-Gimbal Effect Suppression of MSCMG Based on Fractional-Order Disturbance Observer
1 Introduction
2 High-Speed Rotor System Model
2.1 Dynamic Modeling of Rotor System
2.2 Analysis of Dynamic Frame Effect of Single Frame MSCMG
3 Design of Fractional-Order Disturbance Observer
3.1 Classic Disturbance Observer
3.2 Interference Suppression Control Structure
3.3 Design of Q-Filter Based on Fractional Calculus Theory
4 Simulation Verification
5 Conclustion
References
Nonlinear Control of Aerial-Aquatic Quadrotor for Breaching a Water Surface
1 Introduction
2 Structural Design
3 Dynamics Model
4 Controller Design
5 Simulation Experiments
6 Conclusion
References
Finite-Time Disturbance Observer-Based Tracking Control for a Powered Parafoil System-12pt
1 Introduction
2 Preliminaries
2.1 Mathematical Model of the Flexible PPS
2.2 Problem Formulation
3 Main Results
3.1 Finite-Time Yaw Control Design
3.2 Finite-Time Forward Velocity Control Design
4 Simulation
5 Conclusion
References
Targets-Attackers-Defender Games with Communication Topology-12pt
1 Introduction
2 Preliminaries
2.1 Graphs and Communications
2.2 Model Dynamics and Position Errors
3 Main Results
3.1 Performance Index
3.2 The Solution of Nash Equilibrium
4 Simulation Examples
5 Conclusion
References
Fault Diagnosis of Hydraulic Systems with Missing Data Based on FGCN: A Data Augmentation Approach
1 Introduction
2 Preliminaries
2.1 A Brief Introduction to GAN
3 Methodology
3.1 Architecture of the FGCN Model
3.2 Data Augmentation Based on the FGAN Block
3.3 Fault Diagnosis Based on CNN Block
3.4 Training Process of the FGCN
4 Experimental Results and Analysis
4.1 Data Description
4.2 Data Augmentation
4.3 FGCN-Based Fault Diagnosis
5 Conclusion
References
Learning Based K-Band Microwave Ranging System Time-Delay Control for Earth Gravity Measurements
1 Introduction
2 Thermal Dynamic Modelling for Precise MWR System
2.1 Structure of Deployed Satellite
2.2 Modelling of Payload Thermal Dynamic System
2.3 Optimal Control of Payload Thermal System
3 Model Free Reinforcement Learning Method
3.1 Q Function
3.2 Actor/Critic Neural Structure
3.3 Learning Algorithm
4 Experiments
5 Conclusions
References
Distributed Stochastic MPC for Formation of Multi-agent Systems
1 Introduction
2 Problem Statement
3 DMPC Algorithm
3.1 Chance Constraints Reformulation
3.2 Distributed SMPC Problem
4 Simulation Results
5 Conclusion
References
Multi-missile Cooperative Strike on Stationary Target Based on Distributed Model Predictive Control
1 Introduction
2 Problem Statement
2.1 System Modeling
2.2 Problem Statement
3 DMPC Algorithm Design
4 Simulation
5 Conclusion
References
Composite Robust Roll Autopilot Design with UDE Observer
1 Introduction
2 Model of Missile Roll Channel
3 Roll Autopilot Design
4 UDE Based Observer
5 Design of IOL + UDE Based Control Law with Actuator Compensation
6 Conclusion
References
Center-of-Mass-Based Robust Grasp Pose Adaptation Using RGBD Camera and Force/Torque Sensing
1 Introduction
2 Related Work
3 Problem Statement
4 Methods
4.1 Object Posture Estimation
4.2 Center of Mass Location Estimation in ee-link Frame
4.3 CoM Estimation in Object Frame and Regrasp Planner
5 Experiment
5.1 Experiment Preparation and Details
5.2 CoM Location Accuracy of Validation
5.3 Regrasp Stability Experiment
6 Conclusion
References
Design of Attitude Controller for Hyper Velocity Projectile Based on Active Disturbance Rejection Control
1 Introduction
2 Mathematical Model
3 Controller Design
3.1 Tracking Differentiator
3.2 Extended State Observer
3.3 Nonlinear State Error Feedback Law
4 Numerical Simulation
4.1 Simulation Parameters
4.2 Simulation Results
5 Conclusion
References
Unmanned Underwater Vehicle Path Planning Based on Improved Hybrid A Algorithm
1 Introduction
2 Improved Hybrid A Algorithm
2.1 Hybrid A Algorithm
2.2 Improved Hybrid A Algorithm
3 Simulation
3.1 Experiment 1
3.2 Experiment 2
3.3 Experiment 3
4 Conclusion
References
An Adaptive Lever-Arm Estimation Method of Airborne POS for Airborne Earth Observation
1 Introduction
2 Establishment of Models Including Lever Arm Estimation
2.1 Establishment of Lever Arm Estimation Model
2.2 Integrated Navigation State Space Model with Lever Arm
3 Adaptive Estimation Algorithm of Lever Arm Based on Observability Analysis
4 Experiments and Analysis
4.1 Experiment Equipment
4.2 Result and Analysis
5 Conclusion
References
Sliding-Mode Control of Missiles Formation via Virtual Structures
1 Introduction
2 Control Problem Formulation
2.1 Formulation of Motion
2.2 Lateral Relative Motion Model
3 Formation Control Approach for Multi-missiles
3.1 Constant Altitude Control Law
3.2 Lateral Sliding-Mode Control Law
3.3 Velocity Control Law
4 Simulations and Discussions
4.1 Multi-missiles Networking Under Standard Case
4.2 Multi-missiles Networking Under Multiple Deviations
5 Conclusions
References
Online Parameter Estimation of the B-Matrix of a Quadcopter in Time- and Frequency-Domain
1 Introduction
2 Online Parameter Estimation Algorithms
2.1 Sequential Least Squared in Frequency-Domain
2.2 Joint Extended Kalman Filter
2.3 Detrending
3 Flight Test with the Mambo Fly Quadcopter
3.1 Linear Pitch and Roll Dynamics Model
3.2 Input Design Using Orthogonal Multisines
3.3 Offline Parameter Estimation
3.4 Parameterization
3.5 Flight Test Results
4 Conclusion and Outlook
References
An Improved Asynchronous Corner Detection and Corner Event Tracker for Event Cameras-12pt
1 Introduction
2 Problem Formulation
3 Corner Detection Algorithm
3.1 Preprocessing of Event Flow
3.2 Cumulative Surface of Active Events (C-SAE)
3.3 Implementation of Events Corner Detection
4 Corner Tracking Algorithm
4.1 The Corner Descriptor for Corner Events
4.2 Asynchronous Particle Corner Event Tracker ``APCE''
5 Experiment and Evaluation
5.1 Tracking Performance
5.2 Computational Performance
6 Conclusion
References
BeiDou B1C Signal Data and Pilot Pseudocode Dual-Channel Joint Acquisition Algorithm
1 Introduction
2 The B1C Signal Characteristic Analysis
2.1 Analysis of B1C Signal Correlation Characteristics
2.2 Power Spectral Density Analysis of B1C Signal Modulation
3 B1C Signal ‘TWO-WAY’ Joint Algorithm
3.1 Pseudo-correlation Function
3.2 Dual-Channel Joint Acquisition Algorithm Structure
4 Simulation and Analysis
4.1 Algorithm Verification Simulation
4.2 Algorithm Performance Analysis
5 Conclusion
References
Gravitational Field Simulation Based on Point-Array and Standard Model
1 Introduction
2 Point-Array
2.1 Gravitation(or Gravitational Field) Simulation of Mass Point
2.2 Gravitational Field Simulation of General Objects
2.3 Uniform Mass Disk Point-Array Generation Algorithm
3 Standard Model
3.1 Spatial Similarity Transformation
3.2 Gravitational Similarity Transformation
3.3 Standard Model
4 Results and Analysis of the Simulation
4.1 Gravitational Field Simulation Results of Disk by Point-Array
4.2 Gravitational Field Simulation Results of Inclined Disk by Standard Model
5 Conclusions
References
Gaussian Adaptive Mutation Pigeon-Inspired Optimized Backstepping Controller for Aerial Manipulation Trajectory Tracking
1 Introduction
2 Modeling and Controller Design
2.1 Dynamic Model
2.2 Entire System Controller
2.3 Fitness Function
3 Improved PIO for Parameter Optimization
3.1 Basic PIO Algorithm
3.2 GAMPIO Algorithm
4 Simulation Result and Analysis
5 Conclusion
References
Backstepping Sliding Model Method for Attitude Coordination of Multiple Spacecraft on SO(3)
1 Introduction
2 Preliminary Knowledge
2.1 SO(3)
2.2 Graph Theory
2.3 Problem Description
3 Distributed Attitude Tracking Control on SO3
3.1 Attitude Coordination Command Design and Error Equation
3.2 Control Protocol
4 Simulations
5 Conclusion
References
Distributed Control Algorithm for Modular Multi-rotor Unmanned Aerial Vehicle
1 Introduction
2 Preliminaries
3 Main Results
4 Simulations
5 Discussions
References
Deep Clustering Network with Angular Metric Learning in Navigation
1 Introduction
2 Related Works
2.1 Metric Learning
2.2 Deep Clustering
3 Methodology
3.1 Clustering with Angular Softmax
3.2 Discriminative Loss with Angular Metric
3.3 The Total Loss Function
3.4 Architecture
4 Experiments
4.1 Datasets
4.2 Implementation and Evaluation Metrics
4.3 Results
5 Conclusion
References
An Autonomous Motion Planning Method of a Dual-Arm Space Robotic System for Capturing Failed Satellites
1 Introduction
2 Capture-Oriented Image Information Detection and Processing
2.1 High-Precision Robot Hand-Eye System Calibration
2.2 Appearance Model Target Tracking Algorithm Based on Feature Selection and Temporal Consistency
3 An Autonomous Motion Planning Method for Capturing Failed Satellites
3.1 Prediction of Target Movement
3.2 Space Robotic System Motion Planning
3.3 Avoid Bizarre Joint Motion Planning
3.4 Prediction of Pedestal Pose Disturbance and Self-adjustment of Joint Velocities
4 Experiments and Results
5 Conclusion
References
Improving Loosely Coupled GNSS/IMU Fusion Performance with Pseudorange Error Prediction in Urban Areas
1 Introduction
2 Algorithm Design
2.1 Algorithm Framework
2.2 Determination of Input Variables
2.3 Pseudorange Error Labeling Process
2.4 Ensemble Bagged Tree Based Pseudorange Error Prediction
2.5 Adaptive Loosely Coupled GNSS/IMU Fusion Scheme
3 Experiment and Results
4 Conclusion
References
Control Allocation Strategy for Compound Helicopter in Transition Mode
1 Introduction
2 Dynamic Model
2.1 Rotor
2.2 Horizontal and Vertical Tail
2.3 Propeller Model
3 Design of Control Allocation Strategy
3.1 Problem Formulation
3.2 Multi-objective Optimization Function
3.3 Solution of Multi-objective Optimization Problem
3.4 The Design of Improved Artificial Bee Colony Algorithm
4 Experiments
4.1 Performance Text of Improved ABC Algorithm
4.2 Simulation of Control Allocation Strategy
5 Conclusion
References
RRT-Harris: An Efficient Two-Stage Approach for Autonomous Path Planning of UAVs
1 Introduction
2 Problem Formulation
3 The Proposed Two-Stage RRT-Harris Algorithm
3.1 Harris Corner Detection Algorithm
3.2 RRT-Harris Algorithm
4 Simulation and Experimental Comparison
4.1 Experimental and Simulation Environment
4.2 The Connectivity Test of RRT-Harris
4.3 Comparison of Search Efficiency
4.4 Gazebo Simulation
5 Conclusion
Referencess
Nonsmooth Feedback Stabilization for a Class of Lower-Triangular Stochastic Time-Delay Systems
1 Introduction
2 Preliminaries
3 Controller Design
4 Simulation Example
5 Conclusions
References
Attitude Maneuver Decoupling Control Method of Spacecraft Based on Diagonalization of Inertia Matrix
1 Introduction
2 Establishment of satellite Dynamics Model
2.1 Definition of Coordinate Systems
2.2 Definition of Satellite Dynamics Model
3 Dynamic Model Under Inertia Principal Axis Coordinate System
3.1 Diagonalization of Inertia Matrix
3.2 Diagonalization of Inertia Matrix Considering Load Rotation
3.3 Dynamic Model After Diagonalization
4 Design and Analysis of Control System
4.1 Design of Control System
4.2 Effectiveness Analysis of Control System
5 Simulation Test and Results
5.1 Dynamic Model Parameter Setting
5.2 Simulation Results
6 Summary
References
Lateral Control of Distributed Propulsion Aircraft Using Deep Reinforcement Learning
1 Introduction
2 Aircraft Model
3 Reinforcement Learning Framework
4 Simulation Results
5 Conclusion
References
Lane Change Trajectory Planning of Intelligent Vehicles Based on Polynomial and Rolling Horizon
1 Introduction
2 Intelligent Vehicle Lane Change Planning Model
2.1 Coordinate Systems and Their Transformations
2.2 One-Way Two-Lane Lane Change Scenario
3 Dynamic Lane Change Trajectory Planner Design
3.1 Planning Strategy
3.2 Trajectory Planning Model
3.3 Rolling Planning Based on Predictive Time Models
4 Simulation and Experimental Analysis of Real Vehicles
4.1 Simulation Experiments and Analysis
4.2 Experimentation and Analysis of Real Vehicles
5 Conclusion
References
Heuristic Semantic Segmentation Using the Weights of Local Voxel Structure
1 Introduction
2 Related Works
3 Local Voxel Structure
3.1 Definition
3.2 Analysis of the Dataset
3.3 LVS Loss Function
4 Experiment
5 Conclusion
References
A Routing Protocol for Asymmetric Links in UAV Ad Hoc Network
1 Introduction
2 Network Model
3 Routing Protocol
3.1 Communication Link Detection Mechanism
3.2 Asymmetric Routing Establishment Mechanism
3.3 Asymmetric Routing Maintenance Mechanism
4 Simulation and Analysis
4.1 Successful Delivery Rate of UAV Ad-Hoc Network Data Packets
4.2 Packet Transmission Delay
5 Conclusions
References
Health Assessment and RUL Prediction of Aeroengine Under Multiple Working Conditions
1 Introduction
2 Sensitive Parameter Selecting and Data Preprocessing
2.1 Degradation-Sensitive Parameter Selecting
2.2 Data Preprocessing
3 Working Condition Recognition Based on K-means Method
4 Engine Health Assessment Under Multiple Conditions Based on MMD Method
4.1 Principle of MMD Method
4.2 Engine Health Assessment Process Under Multiple Conditions
5 RUL Prediction Based on GRU Under Multiple Conditions
5.1 Principle of GRU Network
5.2 RUL Prediction Process of Engine Under Multiple Conditions
6 Case Study
6.1 C-MAPSS Dataset Introduction
6.2 Engine Parameter Selecting and Data Preprocessing
6.3 Engine Condition Division
6.4 Engine Health Assessment Under Multiple Conditions
6.5 RUL Prediction of Engine Under Multiple Conditions
7 Conclusion
References
Design of Longitudinal Automatic Carrier Landing System Based on Reinforcement Learning
1 Introduction
2 Methodology
2.1 Aircraft Motion Model
2.2 Carrier Surface Atmospheric Disturbances Model
2.3 Carrier Deck Motion Model
2.4 Design of Automatic Carrier Landing System
2.5 Design of Carrier Landing Guidance Law Based on PID
2.6 Design of Carrier Landing Guidance Law Based on DDPG
3 Simulation Results Analysis
3.1 Results of Guidance Law Based on DDPG Algorithm
3.2 Comparison Between DDPG-Based and PID-Based Guidance Law
3.3 Influence of State Selection on Results
3.4 Influence of Disturbance Amplitude Variation
4 Conclusion
References
UAV Cluster Cooperative Decision-Making Method Based on Information Statistical Distribution and Non-zero-Sum Game
1 Introduction
2 Maneuver Attribute Evaluation
2.1 Normalized Distance Advantage
2.2 Normalized Speed Advantage
2.3 Normalized Angle Advantage
3 The Payoff Models Based on Situation Function and Confrontation Strategy
3.1 The Overall Situation of a Single Game in Unit Time
3.2 The Payoff Models of Different Cluster Confrontation Strategies
4 Dynamic Nash Equilibrium Decision-Making Model
5 Example
6 Conclusion
References
A Software Architecture for Collaborative Flight of Fixed-Wing UAV Swarms
1 Introduction
2 Related Work
3 Software Architecture
4 Test Verification
5 Conclusions
References
Vision-Based Autonomous Landing of a Quadrotor UAV on a Double-Layered Nested Landing Marker
1 Introduction
2 The Design and Detection of the Landing Marker
2.1 Double-Layered Nested Aruco Landing Marker
2.2 Landing Marker Detection
2.3 The Improved YOLOv4-Based Marker Detection Algorithm
3 The Relative Position Estimation Between UAV and Marker
4 Experiment and Results Analysis
5 Conclusion
References
Intelligent Optimal Learning Control for Cooperative Formation Tracking of VTOL UAVs
1 Introduction
2 Problem Description
2.1 System Modelling
2.2 Problem Formulation
3 Distributed Intelligent Optimal Control Development
3.1 Force Command
3.2 Torque Command
4 Simulation Example
5 Conclusion
References
Distributed Feature Reduction Signal Sorting Algorithm
1 Introduction
2 CDFRFCM Sorting Algorithm
3 Experiment
4 Conclusion
References
Indoor High-Precision 3D-SLAM Algorithm Incorporating Planar Element Features
1 Introduction
2 PLP-SLAM System Framework
2.1 Front-End Visual Odometer
2.2 Back-End Optimization
3 Feature Extraction and Matching
3.1 Plane Feature Extraction
3.2 Plane Matching
4 Visual Inertia Coupled Optimization
4.1 The Error Equation for the Image Feature
4.2 Sliding Window Optimization Based on Points, Lines, Planes, and IMUs
5 Experiments and Analysis of Results
5.1 Dataset Experiments
5.2 Drone Flight Experiments
6 Conclusion
References
Adaptive Control of Magnetic Levitation System Based on State Observers
1 Introduction
2 NO-Observer and Controller Design
3 K-Filter and Controller Design
4 Numerical Simulation
4.1 Digital Simulation of NO-Filter Method
4.2 Digital Simulation of K-Filter Method
5 Conclusion
References
Faster Robotic Arm Movement Planning via Guided Attenuation Reward Shaping
1 Introduction
2 Related Work
3 Preliminaries
3.1 Reinforcement Learning
3.2 Reward Shaping
4 Guided Attenuation Reward
4.1 Policy Learning
4.2 Reward Function
5 Experiments
6 Conclusion
References
Integrated Secure Cooperative Communication and Control of UAV Networks
1 Introduction
2 UAV Networks Communication Based on HWMP
3 Layered Formation Control in UAV Networks
4 Conclusion
References
Distributed Finite-Time Fault-Tolerant Cooperative Control of Multiple UAVs Against Thrust Loss Fault and External Disturbances
1 Introduction
2 Preliminaries and Problem Statement
2.1 UAV Model
2.2 Faulty UAV Model
2.3 Control Objective
3 Main Results
3.1 Distributed Sliding-Mode Observer
3.2 Finite-Time Extended State Observer
3.3 Fault-Tolerant Cooperative Control Law Design
3.4 Stability Analysis
4 Simulation Results
5 Conclusions
References
A Review on Navigation Methods for High-Speed Aircraft
1 Introduction
2 Common Single Navigation Methods
2.1 Global Navigation Satellite System
2.2 Inertial Navigation System
2.3 Vision Navigation System
2.4 The Comparison
3 Integrated Navigation Methods
3.1 Filtering Methods
3.2 Artificial Intelligent Methods
3.3 The Comparison
4 Conclusion and Outlook
References
Disturbance Observer-Based Fault-Tolerant Control of Tail-Sitter UAV with Second-Order Actuator Dynamics
1 Introduction
2 TSV Modeling and Problem Description
2.1 TSV Model
2.2 Actuator Faults
3 DO-Based FTC Design and Stability Analysis
3.1 DO-Based FTC Design
3.2 Stability Analysis
4 Simulation Analysis
5 Conclusions
References
Boundary-Aware Transformer-UNet for Coronary Vessel Segmentation
1 Introduction
2 Related Works
2.1 Vessel Segmentation with CNN
2.2 Vision Transformer in Medical Image Segmentation
2.3 Boundary Aware Segmentation
3 Proposed Method
3.1 Network Architecture
3.2 Swin Transformer Block
3.3 Feature Extraction Block
3.4 Feature Refinement Block
3.5 Loss Function
4 Experiment
4.1 Dataset
4.2 Implementation
4.3 Evalutions on Coronary Dataset
4.4 Ablation Study
5 Conclusion
References
Model-Based Integrated Test Research on General Quality Characteristics of Aviation Equipment
1 Introduction
2 The Connotation of the Integrated Test
3 Research on Integrated Test System
3.1 Overview of Model-Based System Engineering
3.2 Model-Based Integrated Test System Design Method
4 Design of Integrated Test System
4.1 Requirement Analysis
4.2 Function Analysis
4.3 Design Synthesis
4.4 Simulink Modeling and Co-simulation
5 Simulation Results
6 Conclusion
References
Analysis and Evaluation of MEMS-IMU Attitude Estimation Algorithm
1 Introduction
2 Attitude Representation Method
2.1 Euler Angles
2.2 Rotation Matrix
2.3 Rotation Vector
2.4 Unit Quaternion
2.5 Features of Different Attitude Representations
3 Complementary Filter
3.1 Mahony Filter Algorithm
3.2 Madgwick Algorithm
3.3 Complementary Filter Features
4 ESKF Algorithm
5 Experimental Analysis
6 Conclusion
References
Research on Cooperative Target Design and Pose Estimation for UAV Precise Autonomous Landing
1 Introduction
2 Cooperation Targets and Scheme Design
2.1 Design Criteria for Cooperative Targets
2.2 Cooperation Target Design
2.3 Visual Landing System Scheme
3 Target Recognition and Feature Extraction
3.1 Identification of Cooperation Target
3.2 Image Preprocessing in Visible Light Mode
3.3 Image Preprocessing in Infrared Mode
3.4 Corner Extraction of Cooperative Target
4 Position and Attitude Calculation Algorithm
4.1 Pose Solution Based on Radial Consistency
4.2 Position and Attitude Calculation
4.3 Simulation and Analysis
5 Conclusions
References
M2Coder: A Fully Automated Translator from Matlab M-functions to C/C++ Codes for ACS Motion Controllers
1 Introduction
2 Design and Implementation of M2Coder
2.1 Preprocessing Subsystem
2.2 Data Type Identification Subsystem
2.3 Code Conversion Subsystem
2.4 Post-processing Subsystem
3 Results of Code Translation Using M2Coder
4 Conclusion
References
An Adaptive Extended Kalman Filter for Attitude Estimation Using Low-Cost IMU from Motor Vibration Disturbance
1 Introduction
2 IMU Modeling
3 Adaptive Extend Kalman Filter
3.1 Prediction Update Process
3.2 Observation Update Process
4 Experiment
5 Conclusion
References
Collision Avoidance and Tracking Control of Multi-spacecraft Under Input Saturation
1 Introduction
2 Preliminaries
2.1 Multi-spacecraft Flight Motion Model
2.2 The Saturated Control Input Model
2.3 Flight Collision Avoidance Constraints
3 Problem Statement
4 Position Error Function and Potential Function
4.1 Relative Position Error Function
4.2 Potential Function Design
5 Adaptive Saturation Controller Design
6 Simulation Results
7 Conclusions
References
Adaptive Control of Magnetic Levitation System-12pt
1 Introduction
2 MT-filter and Controller Design
3 K-like Observer and Controller Design
4 Numerical Simulation
4.1 Digital Simulation of MT-filter Method
4.2 Digital Simulation of K-like Observer Method
5 Conclusion
References
Environmentally Robust Laser-Inertial SLAM System Under Multiple Constraints
1 Introduction
2 Related Work
3 Laser-Inertial Odometry and Mapping
3.1 System Design
3.2 Data Preprocessing
3.3 Laser-Inertial Odometry
3.4 Graph Optimization Algorithm Based on the Constraints of GNSS and Loop Descriptor
4 Experiments and Results
4.1 Running Environment and Dataset
4.2 Evaluation on Accuracy and Consistency
4.3 Time Complexity Analysis
4.4 Mapping Analysis
5 Conclusion
References
Research on Airfield Navigation Lamps Pollution Imaging and Its Detection Algorithm
1 Introduction
2 Analysis of Optical Properties of Navigation Lamps
3 Design of Pollution Image Detection Method
3.1 Exposure Time Optimization
3.2 Imaging Angle Optimization
4 Pollution Detection Based on Improved YOLOV3
4.1 Optimization of Network Structure
4.2 Improved Multi-scale Fusion
4.3 Anchor Box Clustering Based on K-Means ++ 
4.4 Loss Function Design
5 Experimental Results and Analysis
5.1 Dataset Acquisition
5.2 Experimental Environment and Network Training
5.3 Comparison of Detection Method Results
6 Conclusion
References
Enhanced-Coupling Based Nonlinear Control for Aerial Transportation Systems with Variable-Length Cable
1 Introduction
2 Problem Formulation
3 Controller Design and Stability Analysis
3.1 Controller Design
3.2 Stability Analysis
4 Simulation Results
5 Conclusions
References
An Integrated Navigation Algorithm Based on LSTM Neural Network
1 Introduction
2 Kalman Filter Model of Integrated Navigation
3 LSTM Neural Network Model
4 GNSS/INS Integrated Navigation Based on LSTM
5 Algorithm Verification
6 Conclusion
References
High Availability Design of Avionics System Architecture Based on K3s
1 Introduction
2 Architecture Design of Avionics System
2.1 Introduction to Containers and K3s
2.2 Architecture Design of Avionics System
3 High Availability Design of Avionics System Architecture
3.1 Fault-Tolerant Design of Service Registry Cluster
3.2 Fault-Tolerant Design of Airborne Service Cluster
3.3 High Availability Deployment Based on K3s
4 Key Performance Test
4.1 High Availability Test of Service Registry Cluster
4.2 Breakpoint Recovery Test
5 Conclusion
References
Bionic Flapping Wing Bending and Twisting Coupled Motion Modeling
1 Introduction
2 Modeling of Bending and Twisting Deformation Flapping Wing
2.1 Introduction to the Physical Model
2.2 Flexible Wing Motion Model
2.3 Comparison of Flexible Flapping Wings Deformation Results
3 Combining Pro Undulating Wave Theory for the Forward Design of Flexible Wings
4 Conclusion
References
ARAIM Algorithm Performance on UAV Platforms in Urban Areas
1 Introduction
2 ARAIM and MAAST
2.1 ARAIM and MASST
2.2 Error Models in MAAST
3 Methodology
3.1 Increasing the Multi-path Errors in the MAAST
3.2 Simulation with Buildings Around the Flying Areas
4 Results and Analysis
4.1 Effect of Multi-path Errors on the ARAIM Algorithm Performance
4.2 Effect of Satellite Blocking on the ARAIM Algorithm Performance
5 Conclusion
References
Research on a New Configuration of Quadruped Robot Based on Reinforcement Learning
1 Introduction
2 Quadruped Robot Configuration Design
3 Robust RL-Based Quadrupedal Controller Training Framework
3.1 Policy Training
3.2 Deployment
4 Simulation and Experiment
4.1 Simulation
4.2 Real World Experiments
5 Conclusion
References
Robust Coordinated Longitudinal Control of MAV Based on Energy State
1 Introduction
2 The Principle of TEC and LADRC
2.1 Longitudinal Motion and Coupling Characteristics of MAV
2.2 The Principle of TEC
2.3 The Principle of LADRC
3 The Design of MAV's Longitudinal Controller
3.1 The Design of Inner Loop Controller
3.2 The Design of Outer Loop Controller
4 Simulation Verification and Result Analysis
4.1 Simulation Analysis of Step Response
4.2 Simulation Analysis of Wind Disturbance Response
5 Conclusion
References
Test Verification Method of FADS Algorithm for Reusable Aircraft
1 Preface
2 Basic Principles of Embedded Air Data System
2.1 The Composition of the Flush Air Data System
2.2 Flush Air Data Solution Algorithm
3 FADS Algorithm Test Verification Method
3.1 Semi-Physical Closed-Circuit Simulation Verification System
3.2 Wind Tunnel Test Verification System
4 Experiment Verification Effect Analysis
4.1 Test Verification Results
4.2 Experiment Verification Effect Analysis
5 Conclusion
References
SOM Neural Network Based Gaussian Mixture PHD Algorithm for Multi-Sensor Multi-Target Tracking
1 Introduction
2 Problem Description
2.1 MT Motion Model
2.2 MS Observation Model
3 SOM Neural Network and GMPHD Filtering Algorithm
3.1 SOMNN
3.2 GM-PHD Algorithm
4 DSOM-GMPHD Algorithm and CSOM-GMPHD Algorithm
4.1 DSOM-GMPHD Algorithm
4.2 CSOM-GMPHD Algorithm
5 Simulation of Typical Case
6 Conclusions
References
Adaptive Fault-Tolerant Control of a Canard Rotor/Wing VTOL Aircraft
1 Introduction
2 Flight Dynamics Modeling in Transition Mode
3 Fault-Tolerant Control
3.1 Control Allocation
3.2 Adaptive Fault-Tolerant Control Algorithm
4 Simulation Result
5 Conclusion
References
Dynamic MPC Obstacle Avoidance Based Tube Sparse A Path Planning Method for UAV Swarm Under Communication Delays
1 Introduction
2 Problem Formulation
2.1 UAV Kinematics Modeling
2.2 UAV Path Planning Modeling
2.3 Communication Delay Modeling
3 Path Planning Algorithm Design
3.1 Real-Time Global Path Planning Algorithm Based on Tube Sparse A
3.2 Local Collision Avoidance Algorithm Based on MPC
4 Simulation and Results
4.1 Simulation of Priority Decoupling Tube Sparse a Algorithm
4.2 Simulation of Dynamic MPC Obstacle Avoidance Based Tube Sparse A Path Planning
5 Conclusion
References
Optimal Tuning of Phase-Lead Compensator with Gain and Phase Margins
1 Introduction
1.1 A Subsection Sample
2 Problem Description
3 Characteristics and Design of Phase-Lead Compensator
3.1 Characteristics of Phase-Lead Compensator
3.2 Tuning Method of Phase-Lead Compensator
3.3 Example
4 The Influence of Time Delay and Filtering Time
4.1 Influence of Time Delay on Parameter Tuning
4.2 The Effect of Filtering Time on System Performance
5 Conclusions
References
Real-Time Trajectory Planning for Hypersonic Vehicle with Dynamic No-Fly Zone Constraints
1 Introduction
2 Problem Formulation
2.1 Dynamic Model
2.2 Entry Multiple Constraints
3 Artificial Potential Field Algorithm for Dynamic Scene
4 Numerical Simulation
4.1 Initial Parameter Setting
4.2 Simulation Result
5 Conclusion
References
Vision-Based UAV Cooperative Multi-target Location
1 Introduction
2 The Principle of Visual Location
3 UAV Cooperative Multi-target Location
4 Simulation Experiment
References
Dynamic Feedback Control for Model-Based Linear Switched Systems-12pt
1 Introduction
2 Preliminaries
3 Main Results
4 A Simulation Example
5 Conclusions
References
Improved YOLOv4 Network for Small Target Detection
1 Introduction
2 Proposed Method
2.1 The Feature Extraction Network
2.2 The Priori Box Setting
3 Experimental Analysis
3.1 Parameter Settings
3.2 Transfer Learning
3.3 Experimental Results and Discusses
3.4 Ablation Study
4 Conclusions
References
Robust Cooperative Guidance Against Maneuvering Target Based on Distributed State Estimation
1 Introduction
2 Preliminary and Problem Description
2.1 Preliminary
2.2 Problem Description
3 Distributed Estimation for Target Maneuvering Information
3.1 Weight Average Consensus Based Distributed Extended Kalman Filtering Algorithm
3.2 Robust Guidance Algorithm Against Maneuvering Target
4 Simulation
5 Conclusion
References
Parameter Dynamic Selection Method of Multi-UAV Cooperative Search Based on Expert System
1 Introduction
2 Distributed Cooperative Search Model
2.1 Objective Function
2.2 Discretization of Search State
3 Receding Horizon Optimization
3.1 Jump Grid Decision
3.2 Optimization Problem Solution
4 Design of Expert System
4.1 Expert Knowledge Base 1
4.2 Expert Knowledge Base 2
4.3 Expert Knowledge Base 3
5 Simulation
6 Conclusion
References
Recent Advances in Mobile Robot Localization in Complex Scenarios
1 Introduction
2 Localization Based on Traditional Fusion Algorithm
2.1 Fusion Localization Without Base Station Participation
2.2 Fusion Localization with Base Station Participation
3 Localization Based on Deep Learning Algorithm
3.1 Deep Learning for Visual Localization Methods
3.2 Methods of Deep Learning for Multi-sensor Fusion
3.3 Deep Learning Methods for Error Modeling
4 Summary and Prospect
References
Design of Airborne Distributed Service Component Platform Based on FACE
1 Introduction
2 Overall Design of Airborne Distributed Service Component Platform
3 Detailed Design of Airborne Distributed Service Component Platform
3.1 Basic Functional Layer
3.2 Service Control Layer
3.3 Service Component Layer
4 Deployment and Actual Verification
4.1 FC-DDS Communication Test
4.2 Services Are Dynamically Loaded and Invoked
5 Conclusion
References
Adaptive Threshold Real-Time Condition Monitoring and Assessment of Unmanned Aircraft Actuator Based on Two-Stage Observer
1 Introduction
2 Condition Monitoring and Assessment Method of the Actuator Based on RBF Observer
2.1 Method Process
2.2 Mathematical Principles of the Observer
2.3 RBF Neural Network Principle
2.4 Fault Detection Observer Model
2.5 Adaptive Threshold Observer
3 Case Study
3.1 Data Description
3.2 Actuator Health Assessment Results
4 Conclusion
References
A New Dual-Polarization GNSS Antenna and IMU Integration Algorithm for Urban Navigation
1 Introduction
2 Algorithm Design
2.1 Signal Classification
2.2 Feature Selection
2.3 Gaussian Process Regression of Bayesian Optimization
2.4 Signal Rejection
2.5 Loosely Coupled GNSS/IMU
3 Experiment and Results
4 Conclusion
References
Spacecraft Integrated Pose Determination with Unknown Noise Covariances
1 Introduction
2 Problems Formulation
2.1 Rigid Body Pose Dynamics
2.2 Cayley Transform
3 Noise Covariance Adaptation
3.1 Measurement Noise Covariance Adaptation
3.2 Process Noise Covariance Adaptation
4 Robust Unscented Kalman Filter
5 Simulation Examples and Analyses
6 Conclusion
References
Fault Modeling and Diagnosis for Spacecraft Attitude Control System Using Deep Learning
1 Introduction
2 Model Building
2.1 Spacecraft Attitude Dynamics Model
2.2 The Control Moment Gyro Model
2.3 Failure Model
3 Fault Diagnosis Method
3.1 Data Generation
3.2 Network Construction and Hyperparameter Selection
4 Numerical Example
5 Conclusion
References
Accuracy Analysis and Synthesis of Multi Joint Serial Robot with Redundant Degrees of Freedom
1 Introduction
2 Kinematics Model of Robot Pose
2.1 Error Model of Robot
3 Robot Precision Synthesize
3.1 Establishment of Robot Precision Synthesis Model
3.2 Precision Synthesis Objective Function
3.3 The Constraint Conditions of Precision Synthesis
4 Error Allocation Algorithm
4.1 Precision Synthesize Error Allocation
5 Conclusion
References
Rapid Delivery of Wartime Materials in Plateau Alpine Border Area Based on SRLV
1 Introduction
2 Demand for Rapid Transportation of Wartime Materials in Plateau and Alpine Border Areas
2.1 Special Battlefield Environment Requirements
2.2 Current Situation and Requirements of Combat Equipment Support
2.3 Requirements for Imperfect Battlefield Support System
3 Advantages and Disadvantages of SRLV Mode of Transportation
3.1 Advantages of SRLV Mode of Transportation
4 Rapid Transportation of Wartime Materials Mathematical Demonstraion and Proposal Based on SRLV
4.1 Model of Wartime Material Rapid Transportation
4.2 Simulation Demonstration
4.3 Solution Proposal
5 Conclusion
References
Design and Implementation of Satellite Digital Simulation Platform Based on FMI
1 Introduction
2 Architecture of Satellite Simulation Tool
3 Design of Satellite Digital Simulation Platform
4 Encapsulation Process of FMI Model
4.1 Encapsulate Simulink Model into FMI Model
4.2 Encapsulate C/C++ Model into FMI Model
5 Simulation Example of Multi-satellite Operation
5.1 Model Import
5.2 Configuration Design
5.3 Scene Configuration
5.4 Simulation Operation
6 Conclusion
References
Imaging Scheduling of Satellite Constellation Based on Digital Parallel System
1 Introduction
2 The Architecture of Digital Parallel System
3 Problem Description of Multi-target Imaging
4 Imaging Scheduling of Satellite Constellation
5 Simulation Analysis
6 Conclusion
References
Multi-UAV Formation Control Under Constraints
1 Introduction
2 UAV Dynamics Modeling and Consistency Algorithm
2.1 UAV Formation Description
2.2 UAV Kinematics Model
2.3 The Basic Principle of Consensus Algorithm
3 Improved Consistency Algorithm
3.1 Formation State Control
3.2 Formation Control Protocol Adjustment Under Constraints
3.3 Convergence Proof of Improved Consistency Algorithm
4 Simulation
4.1 Formation Simulation of Four UAVs with Asymmetric Structure
4.2 Simulation of Multi-UAV Formation Under Constraints
5 Conclusion
References
An Integrity Monitoring Algorithm Based on Multi-constellation/INS Integrated Navigation for LPV-200
1 Introduction
2 Multi-constellation INS Integration Model
3 The Integrity Monitoring Algorithm
3.1 Failure Mode Classification
3.2 Integrity Monitoring Algorithm
4 Simulation
5 Conclusion
References
Resource Modeling and Capability Assessment for Space-Based Information System
1 Introduction
2 Resource Node Modelling
2.1 Resource Node Description
2.2 Hierarchical Model of Space-Based Information Systems
3 Capability Assessment of Space-Based Information Systems
3.1 Acquisition Method of Evaluation Index Value
3.2 Computational Model for Competency Evaluation
4 Analysis of Results
4.1 Calculation Results
4.2 Sensitivity Analysis
5 Conclusion
References
Ship Trajectory Anomaly Detection Based on TCN Model
1 Introduction
2 Methodology
2.1 Data Pre-processing
2.2 Sliding Time Window Algorithm
2.3 Principle of TCN
2.4 TCN Model Building
2.5 Ship Trajectory Reconstruction and Error Indicators
2.6 Anomaly Detection
3 Experiment and Evaluation
3.1 Data Set
3.2 Experimental Environment and Parameter Settings
3.3 Evaluation Indicators
3.4 Analysis of Results
4 Conclusion
References
Fault Diagnosis for Flight Control System Based on Contrastive Learning
1 Introduction
2 Related Theory
3 Methodology
3.1 Data Set Construction Based on Sample Pairs
3.2 Fault Diagnosis Model Construction Based on Siamese Network
3.3 Fault Diagnosis Process Based on Contrastive Learning
4 Case Study
4.1 Dataset Introduction
4.2 Fault Diagnosis Under Few Data Quantity Condition
5 Conclusion
References
Diagnosis and Repair of Speckle Outliers Based on Fault Tolerant Least Squares
1 Introduction
2 Fault-Tolerant Least Squares Diagnosis and Repair of Speckle Outliers
2.1 Robust Polynomial Fit of the ‘Pillar Center’
2.2 Outliers Location Determination
2.3 Outliers Diagnosis and Repair
3 Practical Examples of Application
3.1 Outliers Diagnosis and Repair of Radar Measurement Data
3.2 Outliers Diagnosis and Repair of Rocket Telemetry Engineering Parameters
4 Conclusion
References
Multi-step Mutual Information Prediction for Fire-Spots Tracking in Active Sensing of Wildfires
1 Introduction
2 Background
2.1 Estimation Using Particle Filter
2.2 Active Sensing Using Mutual Information (MI)
2.3 Receding Horizon Information-Theoretic Control
3 Modeling of Fire Active Sensing System
3.1 Fire Spread Model
3.2 Quadrotor Model
3.3 Sensor Model
4 Method
4.1 Multi-step Mutual Information Approximate Calculation
4.2 Active Sensing Strategy with Single-Step/Multi-step Mode Switching
5 Simulation
5.1 Numerical Simulation 1: Static Fire-spot
5.2 Numerical Simulation 2: Moving Fire-spot
6 Conclusion
References
Hybrid Successive Convex Programming for Spacecraft Electromagnetic Docking Trajectory Optimization
1 Introduction
2 Electromagnetic Docking Trajectory Optimization Problem
3 RPM-Based Parameterization Method
3.1 Time Domain Transformation
3.2 Legendre-Gauss-Radau Points
3.3 Discretization of Electromagnetic Docking Dynamics
3.4 Discretized Electromagnetic Docking Trajectory Optimization Problem
4 Successive Convex Optimization Method
4.1 Hybrid Successive Convexification Method
4.2 Hybrid Successive Convex Programming Algorithm
5 Numerical Optimization Simulation and Result Analysis
5.1 A Subsection Sample
6 Conclusions
References
Nonsingular Fast Terminal Sliding Mode Based Impact Angle Guidance Law
1 Introduction
2 Preliminaries
3 The Design of Impact Angle Guidance Law
4 Simulation and Analysis
5 Conclusions
References
Multi-UAV Formation Control With Time-Varying Nash Equilibrium
1 Introduction
2 UAV Formation Model in the Game Framework
3 Time-Varying Nash Equilibrium Seeking Method
4 Simulation
5 Conclusion and Future Work
References
Model Free Adaptive Attitude Control Method for Launch Vehicles
1 Introduction
2 Attitude Control Scheme of Launch Vehicle Based on MFAC
3 Scheme of Launch Vehicle Attitude Control System Based on MFAC and PD
4 Mathematical Simulation and Result Analysis
5 Conclusion
References
Launch Vehicle Fusion Positioning Method Based on Optical Angle Information and GNSS
1 Introduction
2 Algorithm Design Model Section Heading
2.1 Coordinate Transformation of Angular Measurement Data
2.2 Measurement Element Tracking Position Modification Model
2.3 Measurement Data Model
2.4 Angular Measurement A and E
2.5 Elevation H
2.6 Fusion Model
2.7 The Solving Process of the Model
3 Simulation Analysis Based on Measurement Data
4 Conclusion
References
Adaptive Fuzzy Nonsingular Finite-Time Control for Uncertain Nonlinear Systems
1 Introduction
2 Plant Modeling
3 Finite-Time Controller Design
4 Stability Analysis
5 Conclusion
References
Design and Realization of Formation Control for UAV-UGV System Based on PX4-12pt
1 Introduction
2 System Design and Construction
2.1 System Architecture
2.2 Single UAV/UGV System
2.3 Flight Stack
2.4 Ground Station
2.5 Wireless Communication Module
3 Formation Control Algorithm
4 Experiment
5 Conclusion
References
Multi-UAV Cooperative Hunting Using PSO in 3D Cluttered Environment
1 Introduction
2 Methodology
2.1 Vertices Assignment
2.2 Design of Path Planning Algorithm
2.3 Collision-Avoidance Algorithm
2.4 Controller
3 Implementation and Comparisons
4 Conclusion
References
Hemispherical Resonant Gyroscope Signal Denoising by CEEMDAN-WPLP
1 Introduction
2 Hybrid Filter Model
2.1 CEEMDAN
2.2 SE
2.3 Wavelet Packet Transform-Forward Linear Prediction (WPLP)
2.4 The Proposed CEEMDAN-WPLP Processing Algorithm
3 Experiments and Results
3.1 Experiments
3.2 Experiment Results
3.3 Comparison Among Other Algorithms
3.4 Comparison Between the Original Signal and Processed Signal After Different Algorithms
4 Conclusion
References
Automatic Planning Method of Space-Ground Integrated Tele-Operation for Unmanned Lunar Exploration Rovers
1 Introduction
2 Automatic Task Planning Method
2.1 Object-Oriented Modeling Language
2.2 Model Language Recognition
2.3 Planning Data Structure
2.4 Automatic Search Solution
2.5 User Interface
3 Experiments on Tele-Operation for Lunar Rover Exploration
3.1 Construction of the Mission Planning System
3.2 Modeling of the Lunar Rover Tele-Operation
3.3 Experiments on Planning Solving
4 Conclusion
References
The Design of Disturbance Observer Based Controller of CRUAV for Trajectory Tracking
1 Introduction
2 Modeling and Problem Fomulations
2.1 CRUAV Structure and Modeling
2.2 Dynamic of the Vehicle
2.3 Problem Statement
3 Control Design
3.1 NDO Design
3.2 Attitude Control Design
4 Simulation and Discussion
5 Conclusion
References
Remote Sensing Image Semantic Segmentation Based on Fusion of Transformer and Lightweight Deeplabv3+ 
1 Introduction
2 The Design of the Network Structure
2.1 The Principle of the Deeplabv3+ Network Algorithm
2.2 The Structure of the Transformer Encoder
2.3 The Fusion of the Lightweight deeplabv3+ and the Transformer
3 Experiment and Result Analysis
3.1 Environment and Experimental Data
3.2 Experimental Evaluation Indicators
3.3 Analysis of Experimental Results
3.4 Algorithmic Segmentation Results
4 Conclusion
References
Multi-UAV Logistics Planning Problem Based on Improved Genetic Simulated Annealing Algorithm
1 Introduction
2 Establishment of Multi-UAV Logistics Planning Model
2.1 UAV Logistics Model Hypothesis and Problem Description
2.2 Goals and Constraints of Multi-UAV Logistics Models
3 Design of Improved Genetic Simulated Annealing Algorithm
3.1 Introduction to Classical Genetic Algorithms
3.2 Improve Large Neighborhood Search Design
3.3 Improved Genetic Simulated Annealing Algorithm
4 Simulation Verification
4.1 Simulation Parameter Settings
5 Conclusion
References
Longitudinal Control of Morphing Aircraft Based on Fixed Time Constraint Backstepping Method
1 Introduction
2 Morphing Aircraft Modeling
3 Fixed Time Control Based on Backstepping
3.1 Backstepping Control
3.2 Morphing Aerodynamic Estimation
3.3 Constraints Control
3.4 Stability Analysis
4 Simulation
5 Conclusions
References
Design and Implementation of a Ground Control Station for Multiple Fixed-Wing UAVs
1 Introduction
2 Main Structure of Multi-UAVs Formation System
3 Design and Implementation of the Ground Control Station
3.1 Design Goals
3.2 Main Functions
3.3 The Software Implementation
4 Simulations and Field Experiments
5 Conclusion
References
Research on the Formation Reconstruction of Multi-aircraft Based on Mission Requirements
1 Introduction
2 Establishment of Mathematical Model
2.1 Aircraft Navigation Model
2.2 Detailed Constraints
2.3 Goal Function
3 Dimensionality Reduction Based on the Dubins Trajectory
3.1 Summary of Dubins Trajectory
3.2 Dimensionality Reduction
3.3 The Searching Process Based on the ISIGHT Software
4 Simulation Results
5 Conclusions and Future Work
References
Application of the Causal Graph-Based Fault Inference Method in Reliability Analysis
1 Introduction
2 An Overview of Related Theories
2.1 Theoretical Basis of Fault Inference
2.2 Causal Graph Foundation
3 Fault Tree Analysis Method Based on the Causal Graph
3.1 Transformation of a Fault Tree to a Causal Graph Model
3.2 Qualitative and Quantitative Analysis of the Reliability Assessment
4 Case Analysis: Reliability Assessment of Aircraft Power System with Common Failure
4.1 Case Profile
4.2 Causal Graph Model Construction Considering Co-cause Failure
4.3 Reliability Assessment
4.4 Comparison with the Traditional Fault Tree Analysis Method
5 Summary and Conclusion
References
An Algorithm of Complete Coverage Path Planning Based on Improved DQN
1 Introduction
2 System Description and Deep Reinforcement Learning
2.1 System Description
2.2 Deep Reinforcement Learning
3 The CCPP Algorithm
3.1 The Improved DQN Model
3.2 The CCPP Algorithm
4 Simulation Studies
4.1 The Structure of Improved DQN
4.2 CCPP in Different Map
5 Conclusion
References
Research on the Training Strategy of UAV Application Professionals
1 Introduction
2 Practical Problems Faced by the Cultivation of UAV Application Professionals
2.1 The Gap Between College Training and Market Demand
2.2 The Connection Between Teaching and Post in Colleges and Universities
2.3 Link Between Equipment Use and Operational Use
3 Using Systematic Thinking to Innovate New Ideas for the Cultivation of UAV Professionals
3.1 Aiming at Intelligent Development and Reshaping the Goal of Talent Training
3.2 Docking the Post Demand and Reconstructing the Professional Talent Training Scheme
3.3 Close to the Actual Situation of the Post and Rebuild the Professional Training Link
4 Using the Method of Practice Theory, Build a New Training Mode for UAV Professionals
4.1 “Combination of Science and Technology” to Reconstruct the Practical Teaching Curriculum System
4.2 “Integration of Science and Technology” to Create an Integrated Practical Teaching Guarantee Platform
4.3 “Combination of Training and Teaching” to Expand the Connotation of Practical Teaching Approaches
References
L1 Adaptive Control for Unmanned Quadcopter Transportation Systems
1 Introduction
2 Problem Formulation
3 Main Results
3.1 Model Analysis
3.2 L1 Adaptive Controller Design For Horizontal Plane
3.3 PD Based Controller Design for z Direction
3.4 Stability Analysis
4 Simulation Results
5 Conclusion
References
Search-Based Motion Planning for Quadrotor Transporting a Cable-Suspended Load
1 Introduction
2 Preliminaries
2.1 Dynamic Model
2.2 Differential Flatness
2.3 Trajectory Representation
3 Optimal Trajectory Planner
3.1 Graph Search
3.2 Obstacle Avoidance and Swing Suppression
3.3 Cost and Heuristic Function
4 Simulation Results
4.1 Search Heuristic
4.2 Swing Suppression
4.3 Complexity and Robustness Analysis
5 Conclusion
References
Multimodal Control of UAV Based on Gesture, Eye Movement and Voice Interaction
1 Introduction
2 Framework of the Multimode Control Method of UAV
3 Details of Eye Movement, Voice and Gesture Interaction Mode in UAV Control
3.1 Eye Movement Control
3.2 Voice Control
3.3 Gesture Control
3.4 Multimodal Control
4 Experiment
5 Conclusion
References
Weapon Target Assignment Based on Improved Symbiotic Organisms Search Algorithm
1 Introduction
2 Missile Target Assignment Modeling
3 Improved Symbiotic Search Algorithm
3.1 Basic Symbiotic Search Algorithm
3.2 Improved Symbiotic Organisms Search Algorithm
3.3 Improved Algorithm to Solve WTA Steps
4 Simulation Analysis
4.1 Validation of Algorithm
4.2 Algorithm Performance Analysis
5 Conclusion
References
Coaxial Tracking Method of Infrared Search and Tracking System Based on Photoelectric Calibration
1 Introduction
2 Systematic Error Correction
3 Filtering and Prediction Algorithm
4 Target Location Delay Compensation
5 Simulation Experiment and Analysis
6 Conclusion
References
Control Strategies of Motor for Shaftless Rim-Driven Aviation Electric Propulsion System
1 Introduction
2 Model of Shaftless Rim-Driven Propulsion System
2.1 Mathematical Model of PMSM
2.2 Integrated Model of Shaftless RDPS
3 Simulation Analysis of PMSM Drive Control
3.1 FOC Strategy with Id = 0
3.2 MTPA Control Strategy
3.3 D-Axis Current Flux-Weaken Control Strategy
4 Simulation Analysis of Shaftless RDPS
5 Conclusion
References
A Brain-Inspired 3D Cognitive Map Construction Method Incorporating Monocular Visual Features
1 Introduction
2 Related Work
2.1 Conventional Visual SLAM
2.2 Biologically Inspired Robot Navigation
3 Our Approach
3.1 Image Processing Based on ORB Features
3.2 3D Navigation Cells Modeling
3.3 Build Multi-layer Experience Maps
4 Experiment and Results
4.1 Experimental Parameter Setting
4.2 Results
5 Conclusions
References
Stability Analysis of Radome Parasitic Loop Based on Lur’e System Model
1 Introduction
2 Nonlinear Guidance Loop Model
2.1 Guidance/Control/Missile Multiloop Model
2.2 Radome Parasitic Loop
3 Lur’e System Model Simplification Scheme for the Guidance Loop
3.1 Guidance/Control/Missile Multi-loop Simplified Model
3.2 Modeling of Lur’e System
4 Stability Analysis of the Guidance Loop
4.1 Passivity Theorems
4.2 Stability Analysis Based on Lur’e System
5 Simulation
6 Conclusions
References
Estimation Method Based on EKF for Radome Error Slope
1 Introduction
2 Seeker Model with Radome Error Characteristics
3 Seeker Simplified Model
4 Seeker EKF Model
5 Simulation
6 Conclusions
References
Formation Control for Multiple Underactuated Quadrotor Systems
1 Introduction
2 Preliminaries
2.1 Quadrotor Model
3 Formation Controller Design
3.1 Controller Design
3.2 Attitude Controller Design
4 Simulation Results
5 Conclusion
References
Adaptive Estimation of Measurement Noise Variance in Kinematic Precise Point Positioning
1 Introduction
2 Mathematical Model
2.1 State Model
2.2 Observation Model
3 Proposed Method
3.1 Adaptive Estimation Method
3.2 Sample Variance Inflation Processing
3.3 Sample Variance Robust Processing
4 Experiment and Analysis
4.1 Shipboard Data Collection
4.2 Experimental Setup
4.3 Results Analysis and Discussion
5 Conclusions
References
A Novel Method for Aircraft Actuator Fault Diagnosis Based on Causal Graph and T-S Fuzzy Model
1 Introduction
2 Methodology
2.1 Attribute Selection Based on Causal Graphs
2.2 Fault Diagnosis Based on T-S Fuzzy Model
2.3 Strategies for Actuator Diagnostics
3 Numerical Experiments and Analysis
3.1 Experimental Setting
3.2 Process and Results Analysis
4 Conclusion
References
Indoor Location Algorithm Based on Migration PSO-ELM in the Absence of Training Sets
1 Introduction
2 Machine Learning UWB Positioning Principles
2.1 UWB Positioning Systems
2.2 UWB Positioning Technology
2.3 Principles of Machine Learning Localization Algorithms
3 Migration PSO-ELM Positioning Schemes
3.1 New Scenario Training Set Generation
3.2 Particle Swarm Algorithm for Optimizing Extreme Learning Machine Localization Algorithms
3.3 Analysis of Positioning Results
4 Analysis of Simulation Results
5 Conclusion
References
Research on Prediction Method of UAV Heat Seeking Navigation Control Based on GRU Networks
1 Introduction
2 Design of Thermal Updraft Predictor Based on GRU Network
3 Test Experiment: Performance Comparison Experiment Between LSTM and GRU
3.1 Precision Comparison Test Between LSTM and GRU
3.2 Comparison Test of Running Speed Between LSTM and GRU
4 Summary
References
Research on Autonomous Landing Method of Flying Vehicle Based on Deep Learning
1 Introduction
1.1 Convolutional Neural Network Fundamentals
2 Data Source
2.1 Data Acquisition Platform
2.2 Collecting Dataset
3 Analysis of Training Results
3.1 Evaluation Metrics
3.2 Analysis of Training Set Results
4 Test Set Results Analysis
5 Conclusion
References
An Optimization Method for Height Aided GNSS Vector Tracking Under Signal Challenging Environments
1 Introduction
2 Vector Tracking
2.1 VT Navigation Filter State and Measurement Model
2.2 VT with Height Constraint
3 Graph Optimization
4 Dynamic Field Test
4.1 Experimental Setting up and Dataset Collection
4.2 Positioning Results Comparisons
4.3 Limitations and Discussion
5 Conclusion
References
Factor Graph Optimization Based Location Estimation with Sequential Pseudo-Ranges
1 Introduction
2 Formulas and Method
2.1 System and Model
2.2 Maximum Likelihood Estimator
3 Factor Graph Optimization
4 Numeric Simulation
4.1 Static Simulation
4.2 Dynamic Simulation
4.3 Discussion
5 Conclusion
References
Research on Improved PIO Based on Adaptive Inertia Weight Strategy and Fruit Fly Optimization Strategy
1 Introduction
2 The Improved PIO
2.1 Principle of Traditional PIO
2.2 PIO Based on Adaptive Inertia Weigh
2.3 FOA
2.4 RMSFOPIO
3 Verification of RMSFOPIO
3.1 Benchmark Functions (BFs) Selection
3.2 Comparison
4 Conclusion
References
Self-tuning Robust Missile Guidance Law Design
1 Introduction
2 Problem Description
3 Guidance Law Design
3.1 Nominal Robust Guidance Law Design
3.2 Stability Analysis
3.3 Iterative Parameters Self-tunning
4 Simulation Analysis
5 Conclusion
References
Optimized Disturbance Rejection Control for Flutter Suppression of a Benchmark Active Control Technology Wind-Tunnel Model
1 Introduction
2 Model Description
3 ADRC for AFS
4 Parameter Optimization
5 Optimization and Simulation Results
5.1 Optimization Results
5.2 Simulation Results
6 Conclusions
References
On Distributed State Estimation with Bearing Measurements
1 Introduction
2 Problem Formulation
3 Model Transformation and Virtual Measurement Computing
3.1 Model Transformation
3.2 Optimal Distance Estimation Based Transformation
3.3 Virtual Measurement Construction
3.4 Distributed Filter Design
4 Numerical Simulation
5 Conclusion
References
A Multi-velocity Data Processing Method for a Special Measurement System
1 Introduction
2 Treatment Methods
2.1 Model Design
2.2 Accuracy of Calculation
2.3 Example Analysis
3 Conclusion
References
Modeling and Energy-Based Nonlinear Control Design for the Multiple Quadrotor UAVs with a Cable-suspended Payload
1 Introduction
2 Dynamics of the System
3 Controller Design
4 Stability Analysis
5 Numerical Simulation
6 Conclusion
References
Ascent Trajectory Design Method for Air-Breathing Combined Power Hypersonic Vehicle
1 Introduction
2 Problem Description
2.1 Longitudinal Particle Dynamic Equation
2.2 Constraints Conditions
2.3 Problem Summary
3 Trajectory Design Method
3.1 Mathematical Description of Trajectory Profile
3.2 Relationship Between Constraints and Iterative Variable
3.3 Trajectory Iterative Algorithm
4 Simulation Verification
5 Conclusion
References
Disturbance Observer-Based Finite-Time Tracking Control for a Class of Second-Order Nonlinear Systems with Mismatched and Matched Uncertainties
1 Introduction
2 Problem Formulation
3 Main Results
4 Stability Analysis
5 Numerical Simulation
6 Conclusion
References
Attacking Satellite Remote Sensing Detection Using Saliency Constrained Adversarial Patch
1 Introduction
2 Related Work
3 Method Introduction
3.1 YOLOV3 Model Structure
3.2 Definition of Adversarial Attack Problem
3.3 Adversarial Patch Generation Algorithm
4 Experiment
4.1 Training Dataset and Generation and Optimization Parameters of Padv
4.2 Experimental Results
4.3 Ablation Experiment
5 Conclusion and Future Work
References
Research on Efficient Network Switching and Load Balancing Algorithm Based on Ad-Hoc Network
1 Introduction
2 System Model
3 Proposed Method
3.1 Network Topology Construction Algorithm
3.2 Node Dynamic Switching Algorithm
3.3 Network Load Balancing Algorithm
4 Implementation and Performance Analysis
5 Conclusion
References
Vision Transformer with Information Bottleneck for Fine-Grained Visual Classification
1 Introduction
2 Related Work
2.1 CNN-Based Methods
2.2 Transformer in Vision
2.3 Information Bottleneck
3 Method
3.1 Vision Transformer for Feature Learning
3.2 IB Loss
4 Experiments
4.1 Experiment Details
4.2 Results and Comparison
4.3 Ablation Study for Regularization Factor
5 Conclusions
References
Control Parameter Design for Hypersonic Vehicle via Improved Comprehensive Learning Pigeon-Inspired Optimization
1 Introduction
2 The ADRC System for HV
2.1 Model of HV
2.2 Structure of the ADRC System
3 Improved Comprehensive Learning Pigeon-Inspired Optimization
3.1 Basic PIO Algorithm
3.2 Improved Comprehensive Learning PIO Algorithm
3.3 Optimized ADRC System for HV
4 Simulation Results and Analysis
5 Conclusion
References
Fully Distributed Multi-UAV Cooperative Hunting with External Disturbance
1 Introduction
2 Propaedeutics and Problem Statement
2.1 Notations, Graph Theory and Related Lemmas
2.2 Problem Statement
3 Proposed Cooperative Hunting Approach
3.1 Cooperative Hunting Protocol Design
3.2 Control Protocol Analysis
4 Numerical Example
5 Conclusions
References
Research on an Adaptive Processing Method of Fast Varying Parameters in Telemetry Data Based on Envelope
1 Introduction
2 Envelope Extremum Adaptive Judgment Method
2.1 Data Preprocessing
2.2 Obtain Signal Envelope
2.3 Feature Signal Extraction Based on Envelope Area Method
2.4 Processing Flow
3 Case Analysis
4 Conclusion
References
Research on the Selective Maintenance Decision of Equipment Subject to Competing Causes of Failure
1 Introduction
2 Problem Description
3 Maintenance Mode and Maintenance Resource Requirement Modeling
4 Modeling of Selective Maintenance Decision for Cluster Equipment Under Fuzzy Random Competition Failure
4.1 Fuzzy Set Theory
4.2 State Distribution of Fuzzy Multistate Subsystem
4.3 Fuzzy State Distribution of Multi State Equipment System
4.4 Fuzzy Success Probability Evaluation of Mission for Cluster Equipment
4.5 Modeling of Selective Maintenance
4.6 Model Solution Based on Memetic Algorithm
5 Case Analysis
5.1 Solution of Selective Maintenance Model
5.2 The Influence of b on the Decision Result of Selective Maintenance
5.3 Effect of Random Competition Failure Events on Selective Maintenance Decision
6 Conclusions
References
Research on Pedestrian Heading Estimation Based on Multiple Carrying Position Constraints of Smartphones
1 Introduction
2 Smartphone Attitude Solution
2.1 Object Coordinate System
2.2 Smartphone Heading Fusion Estimation Based on EKF
3 Carrying Position Classification
3.1 Feature Extraction
3.2 Parameter Optimization
3.3 Classification Experiment
4 Pedestrian Heading Estimation
4.1 Heading Estimation in the Calling Mode
4.2 Heading Estimation in the Swinging Mode
4.3 Processing of Smartphone Position Switching
5 Experiment
6 The Conclusion
References
In-Motion Alignment Algorithm with ST-EKF for SINS Based on n-Vector Model in Polar Regions-12pt
1 Introduction
2 Navigation Mechanization Based on n-Vector Model
2.1 Definition of n-Vector Model
2.2 The Navigation Mechanism Based on n-Vector Model
3 Polar Alignment with ST-EKF Based on n-Vector Model
3.1 System Error Model
3.2 Measurement and Updating Model
4 Experiments and Analysis
5 Conclusion
References
Aerodynamic Parameter Identification of Hypersonic Vehicles Based on Improved Harris Hawks Optimization
1 Introduction
2 Aerodynamic Parameter Identification Model
3 Parameter Identification Algorithm
3.1 Harris Hawks Optimization Algorithm
3.2 Improved Harris Hawk Optimization Algorithm
4 Simulation Results
5 Conclusion
References
Three-Dimensional Path Planning Algorithm for Global Path of AUV Based on ROBL-MFO on Static Environment
1 Introduction
2 Related Work
2.1 Literature Overview
2.2 Problem Description and Contributions
3 Static Current Model
4 Optimization Criteria
4.1 Path Length
4.2 Energy Consumption Model
5 Algorithm
5.1 Moth Flame Optimization
5.2 ROBL-MFO
6 Simulation
7 Conclusion
References
Autonomous Guidance Reconfiguration for the Thrust Drop Fault of a Multi-satellite Launch Mission
1 Introduction
2 Autonomous Guidance Reconfiguration
2.1 Ascent Guidance Constraints
2.2 Reconfiguration Method
3 Numerical Solution Method
3.1 Multi-phase Legendre-Gauss-Radau (LGR) Discretization
3.2 Initial Guess
4 Numerical Simulation
5 Conclusions
References
Longitudinal Automatic Carrier Landing with Explicit Nonlinear Model Predictive Controller and Improved Pigeon Inspired Optimization
1 Introduction
2 Longitudinal Dynamic Model of Carrier-Based Aircraft
3 Explicit Nonlinear Model Predictive Controller Design
3.1 Velocity Controller Design
3.2 Altitude Controller Design
4 Improved Pigeon Inspired Optimization
4.1 Original Pigeon Inspired Optimization
4.2 Improved Pigeon Inspired Optimization
5 Simulation Results
6 Conclusions
References
Cooperative Fencing Control with UAV Swarm Based on Saturation Attack Mission
1 Introduction
2 Modeling and Problem Statement
2.1 The Model of UAV Swarm
2.2 Problem Statement
3 Control Scheme of Cooperative Fencing Based on SAM
3.1 Calculating the Minimum Number of UAVs Based on SAM
3.2 Design of Cooperative Fencing Controller
4 Simulation and Analysis
4.1 The Overall Penetration Probability
4.2 The Cooperative Fencing Control Based on SAM
5 Conclusion
References
Research on Torpedo SINS/Trajectory Integrated Navigation Method Considering Gravity Disturbance
1 Introduction
2 Earth Gravity Field Model
3 Gravity Disturbance Compensation on Inertial Navigation
3.1 Analysis of Positioning Error Caused by Gravity Disturbance in Inertial Navigation System
3.2 Inertial Navigation Solution Model Considering Gravity Disturbance
4 Integrated Navigation Model
5 Simulation Verification
6 Conclusion
References
Robust Optimal Formation Control of Heterogeneous Air-Ground Vehicles Under Communication Faults via Reinforcement Learning
1 Introduction
2 Preliminaries
2.1 Notation
2.2 Graph Theory
2.3 Problem Formulation
3 Coordination Protocol Design
3.1 Distributed Observers Under Multiple Communication Faults
3.2 Position Controllers
3.3 Quadrotor Attitude Controllers
3.4 UGV Optimal Controllers
4 Simulation Results
5 Conclusions
References
Influence of Valve Sealing Structure on Opening Characteristics of Aviation High Voltage Solenoid Valve
1 Introduction
2 Physical Domain and Control Equation Calculation
3 Mesh Generation and Boundary Conditions
4 Numerical Calculation and Analysis
4.1 Characteristic Distribution of Internal Pressure of Solenoid Valve
4.2 Internal Trace Distribution of Solenoid Valve
4.3 Key Position Parameter Characteristics of Solenoid Valve
5 Conclusion
References
Fault Tolerant Control of PMSM with Faulty Low Cost Hall-Effect Sensors
1 Introduction
2 Fault Type Analysis of Hall Sensor
2.1 Hall Sensor Installation Location
2.2 Failure Mode
3 The Proposed Fault Diagnosis Algorithm
3.1 Diagnosis Strategy
3.2 Single Hall Sensor Fault
3.3 Multiple Hall Sensor Faults
4 Fault-Tolerant Switching Method
4.1 Weighted Average Switching Algorithm
4.2 Improved Sliding Mode Observer
5 Simulation Result
6 Conclusion
References
Application of Improved Ant Colony Algorithm in Path Planning of Underwater Robot
1 Current State of Development
2 Improvement of Ant Colony Algorithm
2.1 Initialization Method and Strategy of Pheromone
2.2 Heuristic Factor Based on A Algorithm
2.3 Multi Factor Heuristic Function
2.4 Improved Transition Probability
3 Modeling Design of Experimental Environment
4 Simulation Experiment Analysis
5 Conclusion
References
Improved Modified MUSIC Algorithm Based on Virtual Sensor Array Elements
1 Introduction
2 Description of IMMUSIC-VE
3 Mathematical Proof of IMMUSIC-VE Properties
4 Numerical Simulation
4.1 Parameters of the Experiment
4.2 DOA Estimation of Mixed Sources via IMMUSIC-VE
4.3 DOA Performance of Non-correlation Signal Sources
4.4 DOA Performance of Coherent Acousticsources
5 Conclusion
References
UAV Swarm Cooperative Search Based on Extended Differential Evolution Optimization
1 Introduction
2 UAV Swarm Cooperative Search Model
2.1 UAV and Sensor Model
2.2 Terrain Menace Model
2.3 Search Probability and Uncertainty Map
3 Revenue Function Based on RHO and Hormone Map
3.1 Revenue of Cooperative Search
3.2 Execution Cost
3.3 Menace Cost
4 Extended Differential Evolution Optimization
5 Simulation and Analysis
5.1 Benchmark Function Experiment
5.2 Swarm Search Based on EDEO
6 Conclusion
References
Three-Dimensional Super-Twisting Sliding Mode Guidance Law with Impact Time and Angle Constraints
1 Introduction
2 Problem Formulation
2.1 Three-Dimensional Guidance Model
2.2 Related Theories
3 Design of the Three-Dimensional Super-Twisting Guidance Law
3.1 LOS Direction Guidance Law Design
3.2 LOS Normal Direction the Guidance Law Design
4 Simulation Analysis
4.1 Striking Non-maneuvering Target Under the Same Initial Conditions
4.2 Striking a Non-maneuvering Under Different Initial Conditions
4.3 Striking a Maneuvering Target Under Different Initial Conditions
5 Conclusion
References
Two-Step Robust Kalman Filtering Algorithm for X-ray Pulsar Navigation
1 Introduction
2 System Navigation Principle and Bias Analysis
2.1 Analysis of Direction Error
2.2 Analysis of Clock Error
3 The TSRKF Algorithm for Pulsar Navigation
3.1 Pulsar Navigation Model
3.2 Observability Analysis
3.3 Design of TSRKF Algorithm
4 Simulation
5 Conclusion
References
Space-Based Observation Approach for Multiple GEO Defunct Satellites Pose Parameters Determination
1 Introduction
2 Flyby Trajectory Design and Optimization for Multiple GEO Defunct Satellites
2.1 Constraint Analysis and Scheme Design
2.2 Orbit Optimization for “One-to-Many” Flyby Trajectory
3 Collaborative Observation and Pose Determination for the GEO Defunct Satellites
3.1 Formation Configuration Design of Multi-satellite for Collaborative Observation
3.2 Pose Determination Based on Collaborative Observation Data
4 Simulation Analysis
4.1 Trajectory Design and Optimization for “One-to-Many” Flyby Observations
4.2 Collaborative Observation and Attitude Determination
5 Conclusion
References
The Research and Application of Improved ORB Feature Matching Algorithm
1 Introduction
2 VSLAM Framework
3 Feature Point Extraction Method
3.1 FAST Corner Point Method
3.2 Harris Corner Point
3.3 SIFT Descriptor
3.4 BRIEF Descriptor
4 Improved ORB Feature Point Extraction Algorithm
4.1 Traditional ORB Algorithm Framework
4.2 Improved ORB Algorithm
4.3 Feature Point Matching
5 Experiments and Analysis of Results
5.1 Feature Point Extraction Experiment
5.2 Feature Matching Experiments
6 Summary
References
A Fault Diagnosis Method of Feature Graphical Flight Control System Based on GAF-SWT
1 Introduction
2 Design of Flight Control System Fault Diagnosis Method Based on GAF and SWT
2.1 Algorithm Design of GAF Transformation
2.2 The Design of SWT for Image Classification
3 Experimental Verification
3.1 Introduction of Experimental Dataset
3.2 Data Pre-processing
3.3 Experimental Result
4 Conclusion
References
Spacecraft Fault Location Method Based on DSAN
1 Introduction
2 Problem Description
3 Project Design
4 Project Implementation
4.1 Neural Network Fitting of ACS (DS and DT)
4.2 Generation of Residual Grayscale Images
4.3 Deep Transfer Learning Method
5 Simulation
6 Conclusion
References
System-Level Calibration Method Considering Nonorthogonal Angles in Dual-Axis Rotational Inertial Navigation System
1 Introduction
2 Error Model of RINS
2.1 Error Model of IMU
2.2 Error Model of Nonorthogonal Angles
2.3 Error Equation of RINS
3 Self-calibration Method
3.1 The Design of Kalman Filter
3.2 Observability Analysis
3.3 System-Level Self-calibration Steps
4 Simulations and Experiments
4.1 Calibration Simulations
4.2 Navigation Experiments
5 Conclusion
References
MOEA/D Based Multi-sensor Collaborative Task Scheduling for Space Domain Awareness
1 Introduction
2 Model Establishment
2.1 Priority Estimation Based on AHP
2.2 Multi-sensor Collaborative Task Scheduling
3 Algorithm Designing
3.1 Multi-objective Optimization Problem
3.2 MOEA/D Algorithm for Multi-sensor Collaborative Task Scheduling
4 Simulation Analysis
4.1 Simulation Environment
4.2 Priority Calculation Based on AHP
4.3 Scheduling Solution Based on MOEA/D
5 Conclusion
References
Wind Vector Inversion of ADS-B Data Based on Improved PSO-PF Algorithm
1 Introduction
2 Wind Inversion Algorithm
2.1 Speed Vector Model
2.2 Dilution of Precision
2.3 Levenberg-Marquardt Algorithm
2.4 Improved PSO-PF Algorithm
3 Simulation Study
3.1 Data Processing
3.2 Wind Estimation
3.3 Influence of Aircraft Turning Angle on Wind Estimation
4 Conclusion
References
Elastic Adaptive Stability Control Technology of Launch Vehicle
1 Introduction
2 Flight Dynamics Model of Launch Vehicle in Ascending Stage
3 Elastic Adaptive Stability Control
3.1 Scheme and Architecture
3.2 Design of High-Pass and Low-Pass Filter
3.3 Design of Adaptive Regulation Law
3.4 Interference Estimation and Compensation Based on ESO
4 Simulation Analysis
5 Conclusion
References
Robust Stabilization of a Class of Switching Fuzzy Systems with Structural Uncertainty
1 Introduction
2 Preliminary
3 Controller Design
4 Simulation
5 Conclusion
References
System of Systems Architecting with Knowledge Graph: A Case Study from Air Interdiction Operation
1 Introduction
1.1 Knowledge Graph
1.2 System of Systems Architecting
2 Construction of Knowledge Graph
2.1 Designing Knowledge Graph
2.2 Building Knowledge Graph
3 Application of Knowledge Graph
3.1 Air Interdiction Operation
3.2 System of Systems Architecting with Knowledge Graph
4 Conclusion
References
Design of Multivariable Control System for Variable Cycle Engine and Hardware-in-the-Loop Simulation
1 Introduction
2 Introduction to Variable Cycle Engines
2.1 The Basic Principle of VCE
2.2 Engine Control Law and Linearization
2.3 Engine Coupling Analysis
3 Augmented LQG/LTR Multivariable Controller Design
3.1 Basic Principles of Augmented LQG/LTR Multivariable Control
3.2 ALQR Multivariable Controller Design
3.3 Comprehensive Verification of Control System
4 Hardware-in-the-Loop Simulation Platform Verification
4.1 Platform Basic Architecture and Configuration
4.2 Variable Cycle Engine Electronic Controller HIL Verification
5 Conclusions
References
Dynamics and Analysis for Gravitational Effects on Space Multi-rigid-Body System
1 Introduction
2 Dynamics Modeling
3 The Analysis of Gravitational Effects
3.1 Orbit Height
3.2 Base Spacecraft Mass
3.3 Rigid Link Mass
3.4 Rigid Link Length
4 Conclusion
References
Integrated Guidance and Control Design for Orbit Injection Phase of Launch Vehicle
1 Introduction
2 Problem Formulation
3 IGC Scheme Design
3.1 ESO Design
3.2 The IGC Algorithm
3.3 Stability Analysis
4 Simulation Analysis
5 Conclusion
References
The Synchronization of Fractional-Order Chaotic Systems Based on Event-Triggered Strategies
1 Introduction
2 Preliminaries
3 Main Results
4 Numerical Simulation
5 Numerical Simulation
References
Strategy Optimization of Imperfect Information Games Based on NFSP with DDQN
1 Introduction
2 Method
3 Experiment
3.1 Experimental Setting
3.2 Results and Analysis
4 Conclusions
References
Airborne Vision Based Target Motion State Estimation for UAV Aerial Docking
1 Introduction
2 Preliminaries and Problem Statement
2.1 Coordinate System Definition
2.2 Algorithm Framework
3 The Sensors Model Description
4 Target Motion State Estimation Algorithm
4.1 Filtering Algorithm Model Description
4.2 Multi-model Multi-rate Extended Kalman Filtering
5 Experimental Verification
5.1 Hardware Components
5.2 Initial Experimental Conditions
5.3 Experimental Results
6 Conclusion
References
Group Object Trajectories Extraction in Drone-Based Videos with Dynamic Background
1 Introduction
2 Related Works
3 Method
3.1 Feature Points Extraction
3.2 Object Trajectory Generation
3.3 Group Trajectories Identification
4 Experiments
4.1 Implementation Details
4.2 Experiment Results
5 Conclusion
References
TraNet: A Hybrid Deep Neural Network for Long-Time-Scale Aircraft Trajectory Prediction
1 Introduction
2 Methodology
2.1 Problem Formulation
2.2 TraNet
2.3 Objective Function and Optimization Strategy
2.4 Prediction Mechanism
3 Experiments
3.1 Trajectory Data Generation
3.2 Methods for Comparison
3.3 Evaluation Metrics
4 Results and Discussion
4.1 Neural Network Training
4.2 Overall Performance
4.3 Error Examination
4.4 Parameter Sensitivity
4.5 Model Robustness
5 Conclusions and Future Work
References
Application of Single Point Calibration Algorithm of Optical Velocimeter in SINS/VEL Vehicle Gravimetry
1 Introduction
2 Single Point Calibration Algorithm of Velocimeter
2.1 The Output Characteristics of Vehicle Velocity in the Velocimeter Coordinate Frame
2.2 The Principle of Single Point Calibration Algorithm of Velocimeter
3 SINS/VEL Vehicle Gravimetry Employing Single Point Calibration Algorithm of Velocimeter
4 SINS/VEL Vehicle Gravimetry Experiment
5 Conclusion
References
Research on Supernumerary Robotic Limbs with Relatively Independent Operation Ability
1 Introduction
2 Relatively Independent Operation
2.1 SRL’s Operation Methods
2.2 Concept Definition of Relatively Independent Operation
2.3 Core Factors of the SRL System to Achieve RIO
3 Frame Design of the SRL System
3.1 Hardware Composition
3.2 Software Architecture
3.3 Autonomous Decision Motion Control Algorithm (ADMCA)
4 Design Example of SRL Body
5 Conclusion
References
Review of Formation Control and Cooperative Guidance Technology of Multiple Unmanned Aerial Vehicles
1 Introduction
2 Formation Control Methods of Multiple Unmanned Aerial Vehicles
2.1 The Graph Theory Formation Control
2.2 Formation Control Based on Leader-Follower Mode
2.3 Formation Control Based on Behavior
2.4 Formation Control Using Virtual Structure
2.5 Formation Control Using Artificial Potential Field
2.6 Formation Control Based on Consistency Method
3 Cooperative Guidance Methods of Multiple Unmanned Aerial Vehicles
3.1 Independent Cooperative Guidance
3.2 Centralized Cooperative Guidance
3.3 Distributed Cooperative Guidance
4 Application of Intelligent Method in Multi Aerial Vehicle Formation and Guidance
5 Conclusion
References
Actuator Fault Identification for Spacecraft System via an Iterative Learning Observer
1 Introduction
2 Problem Formulation
3 ILO-Based Actuator Fault Identification Scheme
3.1 Design of the ILO
3.2 Stability Analysis of the ILO
4 Numerical Example and Simulation
4.1 Simulation Parameters
4.2 Simulation Results on ILO-Based Actuator Fault Identification
5 Conclusion
References
Affine Formation Obstacle Avoidance Control of Unmanned Aerial Vehicles with Prescribed Convergence Time
1 Introduction
2 Problem Statement and Preliminaries
2.1 Graph Description
2.2 Basic Notations of Affine Formation
2.3 Modeling
3 Obstacle Avoidance Control of UAVs
3.1 Control Law Design
3.2 Analysis of System Stability
4 Prescribed Convergence Time Control
4.1 Prescribed Convergence Time
4.2 Analysis of System Stability
5 Simulation
6 Conclusion
References
Coordinated Multi-robot Exploration Method Based on GBPlanner in Subterranean Environments
1 Introduction
2 Problem Statement
3 Coordinated Multi-UAV Exploration Method
3.1 Sharing of Perception and Path Information in the Coordinated Team
3.2 Coordinated Multi-UAV Exploration Planning
4 Simulation
4.1 Simulation Environment
4.2 Simulation Result and Analysis
5 Conclusion
References
Reentry Trajectory Planning and Tracking Law of Hypersonic Glide Vehicle Under the Influence of Environmental Uncertainty
1 Introduction
2 Mathematical Model
2.1 Reentry Dynamic Model
2.2 Multiple Constraints
3 Trajectory Planning Algorithm
3.1 Initial Descent Trajectory Design
3.2 Glide Trajectory Design
4 Trajectory Tracking Law
4.1 Longitudinal Trajectory Tracking Law
4.2 Lateral Guidance Law
5 Numerical Simulation
6 Conclusion
References
Improved Scheme of YOLOv3Tiny Based on UAV Confrontation Scenario
1 Introduction
2 YOLOv3-Tiny Model
3 Improvements to the YOLOv3-Tiny Model
3.1 Add the Third YOLO Head
3.2 Global-Local Feature Fusion Module
3.3 Channel Pruning
4 Experiment
4.1 Data Sets
4.2 Experimental Configuration
4.3 Experimental Results
5 Conclusion
References
Cooperative Path Planning Algorithm Based on Artificial Potential Field Method
1 Introduction
2 Environment Description and Task Scenario
2.1 Vehicle Performance Constraint Description
2.2 Description of Threat Zone and no Fly Zone
2.3 Task Scenario Description
3 Cooperative Path Planning Based on Artificial Potential Field Method
4 Simulation Results and Analysis
5 Conclusion
References
Improved Consensus-Based Bundle Algorithm for Multi-to-Multi UAV Interception
1 Introduction
2 Preliminaries
2.1 Task Assignment Problem
2.2 Consensus-Based Bundle Algorithm
2.3 Convergence Speed and Performance
3 Heterogeneous UAV Task Assignment Problem with Time Window Constraints
3.1 Resource-Requirement Matrix
3.2 Improvement of CBBA for Heterogeneous Task Assignment Problem
3.3 Benefit Function Combined with Time Window Constraints
3.4 Improvement of CBBA Algorithm for Time Window Constraints
3.5 Validity of the Improvement
4 Simulation
4.1 Scenario
4.2 Simulation Results
4.3 Experiment 1
4.4 Experiment 2
5 Conclusion
References
Actuator Fault Detection for Hypersonic Flight Vehicle Model: A Sliding Mode Observer Approach
1 Introduction
2 Problem Statement
2.1 Hypersonic Flight Vehicle Model
2.2 Actuator Fault Model Construction
2.3 Dynamic System Model with Actuator Faults
3 Sliding Mode Observer Realization
3.1 Design of Sliding Mode Observer
3.2 Stability Analysis of the Designed SMO
4 Simulation Results
4.1 Simulation Results of Stuck Fault Detection
4.2 Simulation Results of PLOE Fault Detection
5 Conclusions and Future Work Direction
References
Research on Composite Guidance Law Based on Improved Dynamic Surface Control
1 Introduction
2 Design of Composite Guidance Law
2.1 APN Based on Optimal Control
2.2 Terminal Guidance Law Based on IDSC
2.3 Composite Guidance Law
3 Implementation of CGL
3.1 Target Acceleration
3.2 Derivative Information of Virtual Control
4 Guidance Law Performance Simulation
4.1 Simulation Conditions
4.2 Simulation Parameter Description
4.3 Analysis of Simulation Result
5 Conclusion
References
Fast Terminal Sliding Mode Attitude Control of Quadrotor Based on ADRC Method
1 Introduction
2 Attitude Control Model of Quadrotor
2.1 Nonlinear Quadrotor Model
2.2 Quadrotor Model Linearization
3 Principle of Controller Design
3.1 ADRC Method
3.2 FTSMC Based on ESO Method
3.3 Proof of Stability
4 Simulation
5 Conclusion
References
Guidance Law Design for Varying-Speed Missile Based on Classic Differential Geometric Principle
1 Introduction
2 Preliminaries
2.1 Missile Guidance Model in the ALD
2.2 Error Dynamics Approach in the ALD
3 Illustrative Guidance Design
3.1 Zero-Effort-Miss Control Differential Geometric Optimal Guidance
3.2 Impact-Angle-Control Differential Geometric Optimal Guidance
4 Numerical Simulation
5 Conclusion
References
Distributed Time-Varying Optimization for a Class of Second-Order Multi-agent Systems with Disturbance
1 Introduction
2 Problem Formulation
3 Main Results
3.1 Analysis of di(t)
3.2 Distributed Consensus Optimal Control Protocol Construct
4 An Example
5 Conclusion
References
Analysis of Flight Trajectory Model Based on BADA
1 Introduction
2 Aircraft Trajectory Model
2.1 Thrust and True Airspeed Control Mode
2.2 Thrust and Vertical Velocity Control Mode
2.3 Vertical Velocity and True Airspeed Control Mode
3 Analysis of Influencing Factors of the Trajectory Model
3.1 Flaps
3.2 Landing Gear
4 Relationship Between Aircraft Maneuver Modes and Control Modes
5 Numerical Testing Results
6 Conclusion
References
Cooperative Differential Games Guidance Laws for Multiple Missiles Against an Active Defense Target with Multiple Defenders
1 Introduction
2 Problem Formulation
2.1 Missiles-Target-Defenders Kinematics
2.2 Linearized Kinematics
3 Optimization Problem
3.1 MD Optimization Problem
3.2 MT Optimization Problem
4 Numerical Simulation
References
Curriculum-RL Based Air Combat Decision-Making
1 Introduction
2 Problem Formulation
2.1 Dynamics Equation of UAV
2.2 Maneuvering Coding
2.3 Airborne Machine Gun Modeling
3 Algorithm Design
3.1 Proximal Policy Optimization Algorithm
3.2 Curriculum Reward Structure
3.3 Agent Experience Replay
4 Experiment
4.1 Algorithm Parameters and Experimental Platform Description
4.2 Performance Comparsion
5 Conclusion and Future Work
References
Weapon Target Assignment Based on Compensation Auction Algorithm
1 Introduction
2 Modeling and Problem Formulation
2.1 Guidance Model
2.2 WTA Problem Formulation
3 Compensation Auction Algorithm
4 Simulation
5 Conclusion
References
Formation Change Strategy of Multiple UAVs Based on Improved DQN
1 Introduction
2 Problem Formulation
2.1 Task Description
2.2 Problem Formulation
3 Formation Transformation Strategy Based on DQN
3.1 DQN Algorithm
3.2 Formation Transformation Principle Based on DQN
3.3 Markov Model Design
3.4 The Defects in DQN Formation Transformation
4 Formation Transformation Strategy Based on DQN
4.1 Dynamic Target Allocation Algorithm
4.2 Reciprocal Velocity Obstacle Method
5 Simulation and Experimental Analysis
6 Conclusion
References
Application Comparison of Three UAVs in the Control of Pests and Diseases of Citrus in Guangxi
1 Introduction
2 Participating in Plant Protection UAV and Test Method
2.1 Test Method for Citrus Spray Operations
3 Data Processing
3.1 Deposition Volume
3.2 Coefficient of Variation
4 Results and Analysis
4.1 Results of Citrus Canopy Deposition and Distribution
4.2 Comparison of Spraying Efficiency of Three Plant Protection UAVS
5 Discussion and Conclusion
References
A Correcting Accelerometer Errors Algorithm for SINS/CNS Integrated System
1 Introduction
2 SINS/CNS Integrated Navigation Algorithm
2.1 Navigation Algorithm
2.2 Starlight Refraction Principles
2.3 SINS/CNS State Equation
3 Accelerometer Error Correction
3.1 Measurement Equations
3.2 Variance Matrix of Measurement Noise
4 Experiment
5 Discussion
6 Conclusion
References
MBSE-Based Turbofan Engine System Simulation Platform Design
1 Introduction
2 Implementation Methodology of MBSE
3 Modeling of TESSP Based on MBSE
3.1 Requirements Analysis
3.2 Functional Analysis
3.3 Design Synthesis
4 A TESSP Instance
5 Conclusion
References
A Fault Reconstruction Method for Aircraft with Multiple Control Surfaces
1 Introduction
2 Principle of Fault Reconstruction for Aircraft with Multiple Control Surfaces
3 Control Distributor Design for Aircraft with Multiple Control Surfaces
3.1 Design of Control Distributor When Control Surface is Locked
3.2 Design of Control Distributor When Control Surface is Floating
3.3 Design of Control Distributor When Control Surface is Damaged
4 Simulation and Analysis
4.1 The Elevator is Locked
4.2 The Elevator is Floating
4.3 The Elevator is Damaged
5 Conclusions
References
Time-Optimal Control Algorithm of Aircraft Maneuver
1 Introduction
2 Aircraft Dynamics Model of Kulbit Maneuver
3 Optimization Algorithm of Kulbit Maneuver
3.1 General Problem Description
3.2 Aircraft Dynamics Model Transformation
3.3 Constraint Equation Transformation
3.4 Algorithm of Optimization
4 Simulation Results and Analysis
5 Conclusion and Future Work
References
An Improved Inertial Navigation Assisted VSLAM Navigation Method
1 Introduction
2 INS Auxiliary VSLAM Feature Point Tracking
2.1 Feature Point Search and Matching
2.2 Feature Point Direction Detection
3 INS Auxiliary VSLAM Closed-Loop Detection
3.1 Detection Range Optimization
3.2 Closed Cycle Discovery Process
4 INS Auxiliary VSLAM Low Frame Rate Run
5 Experimental Verification
6 Conclusion
References
Formation Optimization Method of Multiple Hypersonic Vehicles
1 Introduction
2 Cooperative Combat Effectiveness Evaluation System and Efficiency Function
2.1 The Formation Characterization
2.2 Effectiveness Evaluation System
2.3 The Formation Efficiency Function
2.4 Design and Analysis of Two Combat Scenarios
3 Optimization Algorithm
4 Simulation
5 Conclusion
References
An Improved Planar Electrode ECT Image Reconstruction Algorithm Applied to Composites Defect Detection
1 Introduction
2 Principle of ECT
2.1 System Structure
2.2 Positive and Inverse Problems
3 Image Reconstruction Algorithm
3.1 Hybrid Conjugate Gradient Algorithm
3.2 Improved Algorithm Based on Hybrid Biconjugate Gradient-Tikhonov Regularization
4 Simulation and Analysis
5 Summary
References
Cooperative Trajectory Shaping Guidance Law for Multiple Missiles
1 Introduction
2 Problem Formulation and Model Derivation
3 Guidance Law Design
3.1 Derivation of Shaping Guidance Law
3.2 Derivation of Cooperative Shaping Guidance Law
4 Numerical Simulation
5 Conclusions
References
Output-Feedback Sliding Mode Control for Multi-missile Formation with Collision Avoidance
1 Introduction
2 Problem statement
2.1 The relative dynamic model
2.2 Collision Avoidance
3 Control Strategy Design
4 Simulation
5 Conclusions
References
SMT Path Optimization Based on Pointer Network
1 Introduction
2 Environment Model
3 Reinforcement Learning Model
3.1 Actor
3.2 Critic
4 Experimental Details
5 Simulation
6 Conclusion
References
Intrusion Detection for Unmanned Aerial Systems: A Survey
1 Introduction
2 Intrusion Detection for Unmanned Aerial Systems
3 Modular Intrusion Detection
3.1 Flying Ad-Hoc Networks/Communication Links
3.2 Sensors/Controllers/Actuators
4 Anomalous Behavior Monitoring in Single UAV
5 Malicious Node Identification in Multiple UAVs
6 Discussion
7 Conclusion
References
Research on Visual-Inertial Integrated Navigation Technology Based on Bomb-Borne Infrared/TV Seeker
1 Introduction
2 Models and Algorithms
2.1 Definition of Coordinate System
2.2 Application of Bomb-borne Infrared/TV Seeker in Visual Navigation
2.3 Visual-Inertial Integrated Navigation Method
3 Simulation Results
3.1 Simulation Error Setting
3.2 Analysis of Simulation Results
4 Flight Test Results
5 Conclusion
References
The Application of Digital Satellites in the Design and Verification of On-Board Multi-satellite Collaborative Mission Planning for Earth Observation
1 Introduction
1.1 Introduction to Digital Satellites
1.2 Introduction to MCAMP
2 Digital Satellite Models in Mission Planning Area
2.1 Satellite Models, Inter-satellite Relationship Models and Satellite-To-Ground Relationship Models
2.2 Satellite Main Subsystems Models
2.3 Target Model
3 Design of Multi-satellite Collaborative Digital Satellites
4 Application Case
5 Conclusion
References
Null-Space-Based Collaborative Guidance Strategy for Spacecraft Rendezvous and Docking with Non-cooperative Target
1 Introduction
2 The Relative Dynamic Model
2.1 Coordinate Frames
2.2 The Relative Dynamic Model
3 Control Strategy Design
3.1 Collision Avoidance
3.2 Position Tracking and Velocity Synchronous
3.3 Communication Boundary Constraint
3.4 NSB Behavioral Control
4 Simulation
5 Conclusions
References
A Generative Adversarial Network for Image Fusion via Preserving Texture Information
1 Introduction
2 Related Work
3 Method
3.1 Overall Framework
3.2 Network Architecture
3.3 Loss Function
4 Experiments
4.1 Implementation
4.2 Results
5 Conclusion
References
Dynamic Generation Strategy for the 4D Continuous Descent Approach Vertical Profile
1 Introduction
2 Establishment of Flight Network
3 Calculation of the Flight Cost
3.1 Noise
3.2 NO Emission
3.3 Fuel Consumption
3.4 Time
4 Dynamic 4D-CDA Vertical Profile Prediction Algorithm
4.1 Screening of the Flight Networks
4.2 Assessment of State Points
4.3 Optimal Path Prediction
5 Simulation
6 Conclusion
References
Generation of Lateral Navigation Transition Path Based on Dubins Method
1 Introduction
2 Classification and Judgment of Lateral Navigation Transition Paths Based on Dubins Method
3 Generation of Lateral Navigation Transition Paths Based on the Dubins Method
3.1 Calculation of the Straight Line Segment Bearing
3.2 Calculation of Center Position of the Start Circle
3.3 Calculation of Center Position of the End Circle
4 Design of Lateral Navigation Transition Paths Guidance Law
5 Simulation and Analysis
6 Conclusion
References
An Optimal Design of Longitudinal Trajectory for RLV in TAEM Phase Based on PSO
1 Introduction
2 Design of Longitudinal Trajectory in TAEM
2.1 Description of Task
2.2 Energy Corridor and Profiles
2.3 Derivation of the Equations for Two-Degree-of-Freedom Mass Model
3 Optimal Design of Longitudinal Trajectory in TAEM Phase Based on PSO
3.1 Generation of Longitudinal Trajectory
3.2 Optimization of Longitudinal Trajectory Based on PSO
4 An Optimal Design and Simulation
4.1 An Optimal Design Example of Longitudinal Trajectory
4.2 Simulation
5 Conclusion
References
Design and Optimization of Ascent Trajectory for a Novel HV Based on APSO Algorithm
1 Introduction
2 Description of Longitudinal Trajectory Design Problems in Ascent Phase
2.1 Equation of the Trajectory Design
2.2 Design of Multiple Maneuvers at of AOA in Response to Overload Variations
3 Description of Longitudinal Trajectory Optimization Problems in Ascent Phase
3.1 Path Constrains and Separation Point Constrains
3.2 The Objective Function and Control Parameters with Respect to the Normal Overload
4 Trajectory Optimization Based on APSO
4.1 Basic Principles of the Classical PSO Algorithm
4.2 Distance Measure Function
4.3 Adaptive Penalty Function
4.4 Adaptive Fitness Function
5 Simulation and Analysis
6 Conclusion
References
Design of Virtual-Real Cooperative Flight Testbed for Multiple Unmanned Aerial Vehicles
1 Introduction
2 Virtual-Real Testbed Framework
3 Composition of the Virtual-Real Testbed
3.1 Quadrotor Flight Platform
3.2 Dynamics Model and Tracking Control Algorithm of Virtual Quadrotors
3.3 Ground Simulation Embedded Computer
3.4 Telemetry Radios/Modems
3.5 Ground Control Station
4 Temporal-Spatial Consistency Method
4.1 Time Adjustment
4.2 Coordinate System Conversion
5 Experiment and Results
6 Conclusions
References
Estimation and Characteristic Analysis of GPS Differential Code Bias at the Receiver Side
1 Introduction
2 Methodology
2.1 Raw Observation Equations
2.2 Multi-frequency UC PPP Model with Receiver DCB Parameters
3 Experiment Setup
3.1 Data Collection and Processing Strategies
3.2 Analysis of Receiver DCBs
4 Conclusions
References
The Influence of Proportions of Different Rotation Modes on Navigation in a Dual-Axis Rotation Scheme
1 Introduction
2 Navigation Error Model of the RINS
3 Influence of the Duration Ratio of Continuous Rotation to Transposition on Navigation Results
4 Simulation and Analysis
4.1 In the Case of a Fixed Rotation Modulation Period
4.2 In the Case of a Fixed Rotation Angular Velocity
5 Conclusion
References
Damage Location and Identification of Underground Structures Based on Brillouin Scattering and Extended Kalman Filter Technique
1 Introduction
2 Methods
2.1 Rationales of Brillouin Scattering
2.2 Rationales of EKF
2.3 Flow Chart of Damage Identification
3 Experimental Results
3.1 Underground Pipe Gallery Structure Model
3.2 Characteristic Identification
4 Conclusion
References
A Complement Graph Based Heuristic Algorithm for Embedded Register Allocation
1 Introduction
1.1 Register Allocation
1.2 Related Work
2 Preliminaries
3 A Heuristic for Register Allocation Based on Complement Graph
3.1 Algorithm Description
3.2 Find the Maximal Complete Subgraph
3.3 Optimizing the Result of CGH
3.4 Calculation of Fitness Value
4 Experimental Evaluation
4.1 Syntactically Generated Interference Graphs
4.2 Routines from Benchmark Suites
5 Conclusion
References
Ill-conditioned Matrix Problem and Its Solution in Multi-constellation Navigation and Positioning of Launch Vehicle
1 Introduction
2 Single Point Positioning
3 Ill-conditioned Matrix Problem and Its Solution
4 Analysis
5 Summary
References
Trajectory Determination and Performance Analysis of Space-Based Tracking Measurement for Rocket Onboard GNSS Receiver
1 Introduction
2 Space-Based Tracking Measurement Method
2.1 Measurement Principle
2.2 Processing
2.3 Data Transmission and Decoding
3 GNSS Trajectory Determination
3.1 Localization Algorithm
3.2 Example Analysis
4 Space-Based Tracking Performance Analysis
5 Conclusion
References
A Precise Automatic Landing Control Method Based on the MPC-LQG Algorithm
1 Introduction
2 Carrier Landing Model
2.1 Aircraft Longitudinal Motion Model
2.2 Deck and ITP Motion Model
2.3 Landing Guidance Trajectory Design
2.4 Carrier Stern Flow Field Model
3 MPC-LQG Algorithm of Accurate Trajectory Tracking
3.1 LQG Tracking Control Model
3.2 MPC Prediction Method
3.3 MPC-LQG Precise Tracking Control Algorithm
4 Simulation Experiments
4.1 Initial Conditions
4.2 Experimental Results and Analysis
5 Summary
References
Energy-Efficient Incremental Control Allocation for Transition Flight via Quadratic Programming
1 Introduction
2 Preliminaries on INDI and Control Allocation
3 Energy-Efficient Control Allocation
4 Longitudinal Control for a Transition Aircraft Model
5 Predefined Trajectory Tracking
5.1 Implementation of Different Methods
5.2 Results Discussion
6 Conclusion
References
Fast Aerial Refueling Cone Tracking Based on YOLOv5s
1 Introduction
2 YOLOv5 Network Framework and Improvement Method
2.1 Introduction of YOLOv5 Algorithm
2.2 Convolution Decomposition Method
2.3 Network Structure Design
3 Experiments and Analysis
3.1 Data Set Acquisition
3.2 Judgment Criteria
3.3 Experiment Results
4 Conclusion
References
Research on the Model-Based Analysis of eVTOL UML-2 Functional Requirements and Performance Requirements
1 Introduction
2 UML-2 Functional Requirements and Performance Requirements Capture
3 UML-2 Functional Requirements and Performance Requirements Validation
3.1 Modeling the Functions by Stateflow
3.2 Validation by Pilot-in-the-Loop Simulation
4 Conclusion
References
Sensing Accuracy Improvement for Gyrowheel Based on Sensitivity Analysis and Accurate Estimation of Tilt-Related Signals
1 Introduction
2 External Rate Sensing Model for Gyrowheel
3 Sensitivity Analysis of Tilt-Related Quantities on Rate Sensing
3.1 Global Sensitivity and Sobol Method
3.2 Sobol-Based Sensitivity Analysis of Tilt-Related Quantities
4 An Improved Rate Sensing Approach for Gyrowheel
4.1 Methodology
4.2 Simulation Validation
5 Conclusions
References
A Novel Temperature Drift Error Precise Estimation Model of MEMS Capacitive Accelerometers Using MTAM
1 Introduction
2 TDE Precise Estimation Model Based on MTAM
3 Implementation of TDE Precise Estimation Model
3.1 Precise TDE Test Method Using Heat Conduction Analysis
3.2 Implementation of TDE Precise Estimation Model Based on RBFNN
4 Experimental Verification
5 Conclusion
References
Trajectory Tracking Control for Autonomous Underwater Vehicle Based on Rotation Matrix Attitude Representation with Input Quantization
1 Introduction
2 Preliminaried and Problem Mathematics
2.1 Mathematical Preliminaries
2.2 The Hysteretic Quantizer
2.3 Coordinate Transformations
2.4 Rotation-Based Tracking Error Dynamics
3 Main Results
3.1 Control Objective
3.2 The Design of Control Plan
3.3 Stability Analysis
4 Numerical Simulations
5 Conclusion
References
Object Detection in UAV Ground-Based Visual Landing Process Based on Improved Faster R-CNN
1 Introduction
2 Create a Dataset
3 Faster R-CNN Structure and Improvement
3.1 Backbone Feature Extraction Network
3.2 RPN and Anchor Box Improvement
3.3 Roipooling Layer
4 Experimental Results and Analysis
4.1 Experimental Environment
4.2 Evaluation Indicators
4.3 Experimental Results
5 Conclusion
References
Intelligent Control and Economic Optimization of Ship Energy Storage System
1 Introduction
2 Ship Energy Storage System
3 Intelligent Control Strategy
4 Economic Analysis Based on New Fish Swarm Algorithm
4.1 Energy Storage System Cost Model
4.2 Optimization Framework
4.3 Simulation Analysis
5 Summary
References
An EEG Classification Method Based on the Combination of Regularized Common Spatial Patterns and Particle Swarm Optimization
1 Introduction
2 Methods
2.1 Covariance Matrix Estimation
2.2 Regularized Common Spatial Patterns
2.3 Feature Extraction
2.4 PSO Optimized RCSP
2.5 Support Vector Machine
3 Experimental Results
3.1 Dataset Acquisition
3.2 Performance Evaluation and Discussion
4 Conclusions
References
Comparison on Improving Continuous Mining Machine Attitude Determination Ability
1 Introduction
2 General Scheme
3 Scheme Comparative Analysis
3.1 Kalman Filter State Equation
3.2 Kalman Filter Measurement Equation
4 Simulation Verification
4.1 Simulation Results
4.2 Compensation Results
5 Experimental Verification
6 Conclusion
References
Tracking Differentiation Guidance Law Based on Backstepping Control
1 Introduction
2 Model Description
3 Tracking Differentiation Guidance Law
4 Stability Analysis
5 Simulation Results
6 Conclusion
References
High-Precision Attitude Compound Pointing Control for Space Moving Target Tracking
1 Introduction
2 Desired Attitude Calculation
3 Compound Pointing Control System
3.1 Compound Pointing System Design and Modelling
3.2 Compound Pointing Controller Design
4 Simulation and Analysis
5 Conclusion
References
Simulation Method of Multi-DOF Motion Control System
1 Introduction
2 Plant Modeling
2.1 Differential Equation Dynamics
2.2 Decoupling Matrix Design
3 Dynamic Index Decomposition
4 Conclusion
References
A Method for Improving Precision Alignment Accuracy of Strapdown Inertial Navigation
1 Introduction
2 Coarse Alignment of Inertial Frame During Travel
2.1 Coarse Alignment Between Inertial Frame Multi-vector Travel
2.2 Coarse Alignment Position Update
3 Improved Kalman Filter Precision Alignment
4 Simulation and Vehicle Experiments
4.1 Simulation Analysis
4.2 Vehicle Experiment
5 Conclusion
References
Tail-Sitter UAV Transition Trajectory Optimization Through a Multi-objective Evolutionary Algorithm
1 Introduction
2 System Model
2.1 Coordinate Systems
2.2 Dynamic Model
2.3 Aerodynamic Model
3 Transition Optimization Through NSGA-III
3.1 Presentation
3.2 Constraint Handling
3.3 Objective Functions
4 Simulation and Results
4.1 Forward Transition
4.2 Backward Transition
5 Conclusion
References
Formation Reconfiguration in Elliptic Orbit for Spacecraft Without the Radial Thrust
1 Introduction
2 Dynamical and Controllability Analysis
3 Underactuated Saturated Controller
3.1 Controller Design
3.2 Convergence Analysis
4 Simulations
5 Conclusions
References
A Game Between Cyber Attack and Defense Under the Topology of Satellite Networks
1 Introduction
2 Problem Formulation and Preliminaries
2.1 Description of Satellite Networks
2.2 Description of Routing Protocol
2.3 Problem Formulation
3 Main Results
3.1 Topology Analysis
3.2 Simple Attack Strategy
3.3 Complex Attack Strategy
4 Simulation Example
4.1 Example for the Simple Attack Strategy
4.2 Example for the Complex Attack Strategy
5 Conclusion and Future Work
References
UUV Cooperative Navigation Measurement Information Processing Method Based on Median Average Filter
1 Introduction
2 Noise Model and Cooperative Navigation Solution
2.1 -Stable Distribution
2.2 Cooperative Navigation Solution
3 Establishment of the System Model
3.1 State Equation
3.2 Observation Equations
4 Median Average and Sage-Husa Adaptive Filtering
4.1 Median Average Filtering
4.2 Sage-Husa Adaptive Filtering
5 Simulation Verification
6 Conclusion
References
ADRC-Based Attitude Control Laws Design for Morphing Aircraft
1 Introduction
2 Nonlinear Aircraft Model
3 ADRC-Based Attitude Control Laws Design
3.1 ADRC-Based Pitch Control Law Design
3.2 ADRC-Based Roll and Yaw Control Laws Design
4 Simulation Results
4.1 Pitch Control Simulation
4.2 Roll and Yaw Control Simulation
5 Conclusions
References
A Pedestrian Gait Recognition Method Driven by Inertial Data
1 Introduction
2 Analysis of Human Gait Characteristics
3 Gait Classifier Design
3.1 Feature Analysis and Extraction
3.2 Gait Classifier Design
4 Experiment and Analysis
4.1 Design of Pedestrian Navigation System
4.2 Experimental Verification
5 Conclusion
References
Research on Attitude Control of Unmanned Helicopter with Slung Load Combined Input Shaper and Linear Active Disturbance Rejection Control
1 Introduction
2 Helicopter with Slug Load Model
3 Design of Attitude Controller Based on LADRC
3.1 LADRC Structure and Principle
3.2 Attitude Controller Design
4 Design of Combined Controller
5 Simulation Verification
6 Conclusion
References
Ballistic Missile Midcourse Intelligent Maneuver Strategy Based on PPO Algorithm
1 Introduction
2 Problem Formulation
3 RL-Based Maneuver Strategy
3.1 PPO Reinforcement Learning Algorithm
3.2 Learning Environment
4 Experiment
5 Conclusions
References
Design of NMPC Trajectory Tracking Controller for BTT Missile Based on ADP
1 Introduction
2 Side Trajectoy Tracking Model
3 Model Prediction Based on Neural Network Identification
3.1 Model Prediction
4 Design of NMPC Trajectory Tracking Controller Based on ADP
4.1 Design of Critic Network
4.2 Design of Action Network
5 Simulation Results and Analysis
6 Conclusion
References
Carrier-Based Fighter Precision Landing Based on Dynamic Inversion and Direct Lift Control
1 Introduction
2 Carrier-Based Fighter Model
3 Control Loop Design
3.1 Control Framework
3.2 Design of Dynamic Inverse Loop of Flight Path Angle
3.3 Design of Dynamic Inverse Loop of Attitude
3.4 Design of Dynamic Inverse Loop of Velocity
3.5 Control Allocation
4 Simulations
4.1 Analysis of Tracking Performance
4.2 Analysis of Correcting Flight Path Deviation Performance
5 Conclusion
References
Multi-output Structure Combined with Separable Convolutional GRU Model for Aero-Engine RUL Prediction
1 Introduction
2 Methodology
2.1 Separable Convolution
2.2 Gated Recursive Units
2.3 Multiple Output Structure
2.4 The Model Structure
3 Experimental Data and Processing
3.1 Dataset Overview
3.2 Data Pretreatment
3.3 Metrics for Model Evaluation
4 Experimental Results and Analysis
4.1 Results
4.2 Performance Comparison with Advanced Models
5 Conclusion
References
Anti-swing Coordinated Control of the UAV Wing Folding During the Aerial Recovery Process
1 Introduction
2 Modeling of UAV Recovery Process
2.1 Flexible Cable Multibody Dynamics
2.2 DOF Dynamics of the Towed Drogue-UAV Assembly
3 Control Law Design
3.1 Wing Folding Anti-swing Coordinated Control Framework
3.2 Quadratic Programming Based Control Allocation Method
4 Simulation
5 Conclusion
References
Real-Time Dense Visual Odometry for RGB-D Cameras
1 Introduce
2 Related Work
3 Notations and Task Description
4 System Overview
5 Motion Estimation
5.1 Dynamic Features Detection
5.2 Observation Constraint
5.3 Planar Points Extraction
5.4 Motion Refinement
6 Experimental Results
6.1 Accuracy
6.2 Runtime Evaluation
6.3 Mapping
7 Conclusion and Future Work
References
Overview of the Present Situation of LEO Precise Orbit Determination Using BDS
1 Introduction
2 Development and Status of POD Using Onboard BDS
2.1 POD Using Onboard BDS-2
2.2 POD Using Onboard BDS-3
3 Prospect of POD Using Onboard BDS
4 Summary
References
Optimization of Refueling Hose Release Strategy by Grey Wolf Optimizer
1 Introduction
2 Modeling of Hose-Drogue-Assembly
2.1 Kinematic Modeling
2.2 Dynamic Modeling
3 Release Strategy Optimization
3.1 Hose Release Strategy
3.2 Grey Wolf Optimizer
4 Simulations
5 Conclusions
References
Design of the Cooperative Guidance Law with Simultaneous Constraints on Impact Time and Angle
1 Introduction
2 Multi-missiles 3D Collaborative Guidance Model
3 Angle-Coordinated Guidance Law
3.1 Nonlinear Fast-Varying Subsystem
3.2 Nonlinear Slow-Varying Subsystem
4 Angle-Time Simultaneous Constrained Cooperative Guidance Law
4.1 Time Constraint Analysis
4.2 Synthesis of Time Constraints and Angle Constraint
5 Simulation Results
6 Conclusion
References
Research on Noise Suppression of Civilian Airplane’s Localizer Deviation Signal
1 Introduction
2 Simulation Model Construction of the Localizer Guidance System
3 Noise Modeling of LOC Receivers Based on Test Flight Data
4 Signal Complementary Filtering Algorithm and Signal Monitoring and Voting
5 Simulation Verification
6 Summary
References
Hierarchical Trajectory Planning for Multi-UAVs via Sparse A Search and Linear Programming-12pt
1 Introduction
2 Overview
3 Hierarchical Trajectory Planning Method
3.1 Geometric Path Planner
3.2 Trajectory Optimizer
4 Simulation Experiment
5 Conclusion
References
Hybrid RRT-Gauss Pseudospectral Trajectory Planning Method for eVTOL Application
1 Introduction
2 Problem Formulation
3 Hybrid Trajectory Planning Method
3.1 Cascaded Trajectory Generation and Smoothing Method
3.2 Trajectory Refinement by GPM
4 Test Cases
5 Conclusion
References
Computational Convergence Rate Analysis of Distributed Optimization Algorithm
1 Introduction
2 Preliminaries
3 Distributed Optimization Algorithm and Convergence Analysis
3.1 General Distributed Optimization Algorithm
3.2 Fixed Point as the Optimal Solution
3.3 Convergence Rate Analysis in Strongly Convex Case
3.4 Convergence Rate Analysis in Generally Convex Case
4 Numerical Simulations
5 Conclusions
References
New Astrometry Data of NEA (99942) Apophis-12pt
1 Introduction
1.1 The Potentially Hazardous Asteroids
1.2 Asteroid Apophis (99942)
2 Moving Celestial Objects in YNHK Survey
2.1 The Astrometric Position Reduction of Small Celestial Objects
2.2 The Reduction of the Observed Data of Asteroid Apophis (99942)
3 Astrometric Position Calculation of Asteroid (99942) Apophis
4 Conclusion
References
Real-Time Performance Evaluation Method for Infrared System Based on Actual Scene Images
1 Introduction
2 Calculation Process of Slanted Edge Method
3 Improvement to Slanted Edge Method
3.1 ESF Data Preprocessing
3.2 Function Fitting of ESF
3.3 A Supplement on MTF Data Processing
4 Conclusion
References
A Reinforcement Learning Method to Trajectory Design for Manned Lunar Mission via Reshaping Rewards
1 Introduction
2 Problem Statement
3 Lunar Trajectory Design Method
3.1 Lunar Transfer/Earth Transfer Orbit
3.2 Three-Impulse Lunar Injection/Ejection Orbit
4 Reinforcement Learning
4.1 Markov Decision Process
4.2 Mathematical Model for Trajectory Design
4.3 Learning Optimal Policy
4.4 Reshaping Reward
5 Numerical Simulation
6 Conclusion
References
Analysis and Evaluation of Onboard GNSS Data Quality for TH-4 Satellite
1 Introduction
2 Indicators and Methods
2.1 Carrier-to-Noise Ratio
2.2 Multipath Effect
2.3 Cycle Slip Ratio
2.4 Geometric Dilution of Precision
3 Data Quality Analysis
3.1 Onboard Data
3.2 Cnr
3.3 Multipath Effect
3.4 Cycle Slip Ratio
3.5 Position Dilution of Precision
4 Conclusions
References
Research on Wave-Off Decision and Elevator Manipulation Optimization of Carrier-Based UAV
1 Introduction
2 Wave-Off Decision Principle
2.1 Traditional Safe Wave-Off Criteria
2.2 Improved Safe Wave-Off Criteria
2.3 Wave-Off Decision Procedure
3 Optimization Study of Elevator Manipulation
3.1 Optimization Metrics of Elevator Manipulation
3.2 Optimization Algorithm
3.3 Optimization Results of Elevator Manipulation
4 Wave-Off Manipulation Optimization Performance Analysis
5 Conclusion
References
Research on Integrated Modeling and Control Method of the Air-Breathing Hypersonic Vehicle
1 Introduction
2 The AHSV Physical Modeling
2.1 Coupled Dynamics Modeling of the AHSV
2.2 Dynamic Model of the AHSV
3 Dynamic Characteristic Analysis
3.1 Coupling Index and Singular Value Stability Index
3.2 Integrated Control Based on Pole Assignment
4 Flight Control Simulation
4.1 Calculation Results of Coupling Index and Singular Value Stability Index
4.2 Simulation Results of Parabolic Trajectory Profile Design
5 Conclusion
References
AOA and AOS Estimation of Low-Cost Light and Small UAV with Simple Sensor Configuration
1 Introduction
2 General Sensor Configuration in Low-cost Light and Small UAVs
3 AOA and AOS Estimation Using INS and Pitot
3.1 Principle of AOA and AOS Estimation
3.2 Inertial AOA and Inertial AOS Calculation
3.3 Wind Field Estimation
3.4 AOA and AOS Compensation
4 Simulation and Analysis
4.1 Simulation Conditions
4.2 Results and Analysis
5 Conclusion
References
Multi-level Feature Enhancement and Interaction Network for Remote Sensing Image Semantic Segmentation
1 Introduction
2 Methodology
2.1 Overview of MFEINet
2.2 Attention-Induced Feature Enhancement Module
2.3 Multi-level Interaction Module
2.4 Segmentation Mask Prediction
3 Experimental Results
3.1 Dataset and Evaluation Criteria
3.2 Training Details
3.3 Ablation Analysis
3.4 Quantitative Results of Other Models
4 Conclusions
References
Fixed-time Formation Tracking Control for Multi-UAV System via Nonsingular Terminal Sliding Mode Approach
1 Introduction
2 Preliminaries
3 Main Result
4 Simulation Results
5 Conclusion
References
Visibility Detection Based on Dark Channel Prior and ResNet
1 Instruction
2 DCP-Based Visibility Detection Algorithm
2.1 Visible Light Scattering Attenuation Model
2.2 Dark Channel Priori Theory
2.3 Visibility Detection Principle
2.4 DCP Visibility Detection Algorithm
3 ResNet-Based Visibility Detection Algorithm
3.1 Network Structure
3.2 Modified VGG-19 for Visibility Estimation
4 Experimental Results
4.1 DCP Visibility Detection Algorithm
4.2 Resnet-Based Visibility Detection Algorithm
4.3 Accuracy Assessment
5 Summary
References
Multi-camera Moving Object Detection Based on Improved ORB Feature Matching
1 Introduction
2 ORB Feature Extraction
2.1 Oriented FAST
2.2 Rotated BRIEF
3 Feature Matching Optimization Strategy
3.1 BF Algorithm
3.2 GMS Algorithm
4 Multi-camera Collaboration
4.1 Multi-camera Synchronization
4.2 Multi-camera Data Fusion
5 Experiment Analysis
6 Conclusion
References
Performance Analysis of an Adaptive Nonlinear State Estimator for ARW of Onboard FOG
1 Introduction
2 Principles of Adaptive Nonlinear State Estimator
2.1 The Nonlinear State Estimator Based on EMA Algorithm
2.2 The Nonlinear State Estimator Based on Recursive Algorithm
2.3 Sage-Husa Adaptive Cubature Kalman Filter (SHACKF) Algorithm
3 Experiments and Results
4 Conclusions
References
Position Error Bound of the AOA Based Cooperative Localization in 3D Space
1 Introduction
2 System Model
2.1 Signal Model
2.2 Error Bound on Position Estimation
2.3 Likelihood Function and Assumptions
3 EFIM for Spatial Cooperative Localization
4 Extension to Temporal Cooperative Localization
5 Simulation Results
5.1 Benefits from Spatial Cooperation
5.2 Benefits from Temporal Cooperation
6 Conclusion
References
GTO Maneuver Trajectory Optimization Based on Analytical Model Iteration
1 Introduction
2 GTO Maneuver Planning Model
2.1 GTO Maneuver Process
2.2 Coding of Design Variables
2.3 Analytical Model to Calculate Maneuvers
3 Trajectory Optimization Method
3.1 Initial Guess Based on GA
3.2 Targeting Iteration Based on Analytical Model
4 Numerical Simulation
4.1 Effectiveness Verification
4.2 Analysis for Different Aimed Inclinations
4.3 Analysis for Different Launch Sites
5 Conclusion
References
Identification of Morphing Aircraft Aerodynamic Parameters Based on Maximum Likelihood Method
1 Introduction
2 Model Description
2.1 Dynamic Model
2.2 Aerodynamic Model
3 Maxmium Likelihood Estimation
4 Simulation and Result
4.1 Simulation Settings
4.2 Simulation Results
5 Conclusion
References
Attitude and Orbit Control for Closely Observing Attitude-Dodging Target
1 Introduction
2 Relative Dynamics Model of Proximity Observation
2.1 Relative Orbital Dynamics Model
2.2 Relative Attitude Dynamics Model
3 Observation Task Design
3.1 Desired Trajectory Design
3.2 Desired Attitude Design
4 Controller Design
5 Numerical Simulation
6 Conclusion
References
A Review of Underwater Multi-source Positioning and Navigation Technology
1 Introduction
2 Underwater Navigation Sources
2.1 Geomagnetic Matching Navigation
2.2 Underwater Acoustic Positioning Technology
2.3 Inertial Navigation Technology
2.4 Other Positioning Methods
3 Underwater Multi-source Fusion Positioning
3.1 Multi-source Information Fusion
3.2 Multi-source Information Fusion Algorithm
3.3 Underwater Multi-source Fusion Positioning Architecture
3.4 Underwater Multi-source Fusion Localization Algorithm
4 Concluding Remarks
References
Drogue Recognition and Tracking Method Based on YOLO + Template Matching Algorithm
1 Introduction
2 Improving YOLOv3-Tiny Model
3 Target Tracking Based on Optimized Template Matching
4 Experimental Result
4.1 Constructing the Drogue Image Dataset
4.2 Drogue Tracking Experiment
5 Conclusions
References
State Estimation of Multi-AUV Cooperative Navigation System with Uncertain Observation Loss
1 Introduction
2 Observation Loss in Multi-AUV Cooperative Navigation Systems
3 Nonlinear Minimum Variance Estimation Under Uncertain Observation
3.1 System Model Conversion Under Observation Loss
3.2 Observation Loss Minimum Variance Filtering
4 Nonlinear Minimum Variance Estimation Under Uncertainty Observation
5 Conclusion
References
Trajectory Control of PFC Recovery Under ADRC and Improved LOS Guidance Law
1 Introduction
2 LOS Guidance Law
2.1 LOS Guidance Law in SF Coordinate System
2.2 LOS Guidance Law with Sideslip Angle Compensation
3 ADRC Attitude Controller
4 Simulation
4.1 Straight Path Tracking
4.2 Curve Path Tracking
5 Conclusion
References
A High-Accuracy SINS/RCNS Integrated Navigation Algorithm
1 Introduction
2 Stellar Refraction Measurement Model Considering Atmospheric Density Error
3 Stellar Refraction Navigation Method Considering Atmospheric Density Error
3.1 State Equation Considering Atmospheric Density Error
3.2 Measurement Equation Based on Stellar Refraction Angle
4 Simulation and Results
4.1 Simulation Conditions
4.2 Results and Analysis
5 Conclusion
References
Robust Ego-Velocity Estimate Method Based on GNSS and Stereo Visual Sensor Fusion in Variable-Rate Application for Agricultural Vehicles
1 Introduction
2 Materials and Methods
2.1 Test Equipment and Materials
2.2 Composition of Velocity Measurement System
2.3 Acquisition of Raw Velocity Information
2.4 Raw Velocity Noise Filtering and Fusion
3 Experimental Results and Discussion
3.1 Evaluation of the Velocity Measurement Accuracy and Filter Effect
3.2 Evaluation of Velocity Fusion Effect
4 Conclusions
References
Reliability Modeling of Multistate Systems Based on Markov State Transition
1 Introduction
2 Engineering Background and Analysis
2.1 Mission Flow
2.2 The Multiple States Under Electromagnetic Interference
2.3 The Impact of Electromagnetic Interference on Reliability
3 System Reliability Analysis and Modeling
3.1 System Reliability Analysis
3.2 System Reliability Modeling
4 Engineering Examples and Analysis
4.1 Data Analysis
4.2 System Reliability Calculation
4.3 Analysis of Reliability Results
5 Conclusion
References
UAV Path Planning from Human Demonstrations Using Inverse Reinforcement Learning
1 Introduction
2 Preliminaries and Problem Description
2.1 Markov Decision Process
2.2 Reinforcement Learning
2.3 Inverse Reinforcement Learning
2.4 Problem Description
3 Markov Decision Process without Reward
3.1 State Space
3.2 Observation Space
3.3 Action Space
3.4 Dynamics
4 Path Planning Based on Deep Inverse Reinforcement Learning
4.1 Deep Inverse Reinforcement Learning
4.2 Network Structure
4.3 Path Planning Using AIRL
5 Experiments
5.1 Training
5.2 Testing
6 Conclusion
References
Longitudinal Ascending Trajectory Design and Tracking Control for Two-Stage-To-Orbit Aerospace Vehicles Before Stage-Separation
1 Introduction
2 Kinetic Modeling
2.1 The Longitudinal Kinetic Model of ASV
2.2 Derivation of Range Derivative-Based Kinematic Model
3 Pre-separation Ascending Parabolic Trajectory Design
3.1 Mathematical Description of the Parabolic Trajectory
3.2 Trajectory Profile Solving Strategy
4 Trajectory Tracking Control
5 Simulation Results
5.1 Simulation Results of Parabolic Trajectory Profile Design
5.2 Simulation Results of Pre-separation Ascending Tracking
6 Conclusion
References
Design of Transition State Control Method for Civil Aviation Engine Facing NOx Emission Reduction Target
1 Introduction
2 Establishment of Control Model
2.1 Nitrogen Oxides Generation Model
2.2 Aeroengine Model
3 Controller Design
3.1 Design Cost Function
3.2 Solve Cost Function
4 Simulation and Analysis
5 Conclusion
References
Position Biased Terminal Guidance Based on Geometric Tangent
1 Introduction
2 Mathematical Model
2.1 Approaching Vehicle Motion Model
2.2 Target Motion Model
2.3 Orbit Control Engine Model
3 Bias Terminal Guidance Based on Geometric Tangent
3.1 Selection of the Biased Point
3.2 Guidance Law Design and Engine Switch Command
4 Biased Terminal Guidance Simulation Experiment
5 Conclusion
References
Nonlinear Robust Attitude Tracking Control of 3-DOF Helicopter Based on Output Feedback
1 Introduction
2 Preliminaries and Problem Formulation
2.1 Dynamic Model
2.2 Problem Formulation
3 Controller Design
4 Simulation Results
5 Conclusion
References
Multi-sensor Data Consistency and Fusion Based on Jensen-Shannon Divergence
1 Introduction
2 Consistency Determination and Fusion Algorithm Based on JS Divergence
2.1 Sensor Data Sampling Based on Bootstrap Strategy
2.2 Consistency Determination Based on JS Divergence
2.3 Data Fusion Based on JS Divergence
2.4 The Algorithm of the Consistency Determination and Fusion
3 Experiments
4 Conclusion
References
Cooperative Navigation and Localization for Infrared Homing Missiles
1 Introduction
2 Cooperative Model
2.1 Cooperative Framework
2.2 Coordinate System and Variables
2.3 Prediction Model of Target Motion
2.4 Error Analysis
3 Cooperative Navigation and Localization
3.1 Optimal Estimation of Target
3.2 Heading Error Correction of Seeker
3.3 Navigation Error Correction
4 The Simulation Verification
5 Conclusion
References
An ADRC Attitude Control Algorithm of Quadrotor for Wind Interference
1 Introduction
2 Quadrotor Model Under Wind Interference
2.1 The UAV Model
2.2 The Wind Disturbance Model
3 Design of ADRC for Quadrotor UAV
3.1 The Attitude Control of ADRC
3.2 The Parameters Self-tuning Method of ADRC
4 Experiment
5 Conclusion
References
Nonsingular Distributed Cooperative Guidance Law with Field-of-View Limits
1 Introduction
2 Problem Statement and Preliminaries
3 Cooperative Guidance Law Design
4 Numerical Simulations
5 Conclusion
References
Trajectory Control of Highly Flexible Aircraft Based on Discrete Fuzzy Robust H∞ Control
1 Introduction
2 The Dynamic Model of HFA
3 T-S Fuzzy Modeling of HFA
4 Trajectory Tracking Control Design Based on Discrete T-S Fuzzy Model
4.1 Feedforward Control Design
4.2 Feedback Control Design
5 Simulation Analysis
6 Conclusions
References
Recognition of UAV Image Transmission Signal via Deep Learning Methods
1 Introduction
2 Related Work
3 Datasets and Methods
3.1 Dataset Description
3.2 The Structure of the Network
4 Results and Analysis
4.1 Deep Learning Configuration
4.2 Recognition Performance
5 Conclusion and Future Work
References
Grouping of the UAV Swarm Based on Automatic Fuzzy Clustering
1 Introduction
2 Preliminaries
2.1 Notations
2.2 Grouping Model Based on FCM Algorithm
2.3 Genetic Algorithm
3 Algorithm for Grouping of the UAV Swarm
3.1 Standardization of Characteristic Components
3.2 Cluster Validation
4 Experiments
5 Conclusions
References
Factor Graph Based SINS/DVL Integrated Navigation Method of AUV with Sparse Beacon Measurement
1 Instruction
2 Factor Graph Optimization Method for AUV
2.1 Maximum a Posteriori Estimation
2.2 Factor Graph Model of Beacon Assisted SINS/DVL Integration
2.3 Factor Graph Optimization for AUV
3 Simulations and Experiment
3.1 The SINS/DVL Integration Simulation with Sparse Beacons Measurements
3.2 The SINS/DVL Integration Encounters DVL Outliers with Sparse Beacon Measurement
3.3 Experiment with Real AUV Data
4 Discussion
5 Conclusion
References
Feasibility Analysis of Hypersonic Vehicles Trajectory Under Multiple Constraints
1 Introduction
2 Vehicle/Propulsion Integrated Model
3 Trajectory Inverse Realization of Hypersonic Vehicle
4 Trajectory Inverse Realization of Hypersonic Vehicle
4.1 Input and Output of Trajectory Inverse Algorithm
4.2 Iterative Solution Process
5 Feasibility Analysis of Algorithm
5.1 Trajectory Inverse Realization Under Control Constraints
5.2 Algorithm Validation
6 Conclusions
References
Design of Self-oscillating Cesium Optically Pumped Magnetometer
1 Introduction
2 Principle
3 Design of OPM System
3.1 Structure of OPM Sensor
3.2 Non-magnetic Electric Heating Temperature Control System
3.3 Phase Shift Circuit
4 Experiments and Results
4.1 Experimental Apparatus and OPM Signal
4.2 Optimization of the Cesium Cell Temperature
4.3 Sensitivity of the OPM Prototype
5 Conclusion
References
Application of Design Strategy Based on EAM and Fixed-Point Control Allocation for Flight Controller Design
1 Introduction
2 Control Allocation Method
2.1 Pseudo-inverse Method
2.2 Fixed-Point Method
3 Flight Controller Design
3.1 Control Law Design
3.2 Control Allocation Design
4 Flight Simulation
5 Conclusion
References
Research on Spiral Sector Decision-Aided System Based on Neural Network
1 Introduction
2 Submarine-Search Decision-Aided System Model
2.1 Modeling of Search Time of Dipping Sonar
2.2 Spiral Sector Graphic Modeling
2.3 Submarine Motion Modeling
2.4 Submarine Underwater Acoustic Countermeasure
3 Underwater Situation Calculation
3.1 Submarine-Search Performance
3.2 Spiral Sector Submarine-Search Algorithm
3.3 Simulation of Spiral Sector Algorithm
4 Neural Network Model of Decision-Aided System
5 Conclusion
References
ESO-MPC Based Attitude Control of Coaxial Rotorcraft UAV During Blanket Radar Jamming
1 Introduction
2 Formulation of Coaxial Rotorcraft UAV
2.1 Linear Time-Varying Attitude Model of UAV
2.2 Mathematical Relation Between Jamming Sector and UAV Attitude
3 ESO-MPC Based Attitude Control Against Wind
3.1 Extended State Observer Based Attitude LTV Model
3.2 ESO-MPC Based Attitude Control
4 Simulation Results
5 Conclusion
References
Longitudinal Control Method of Civil Aircraft Take-off Guidance Based on LQG/LTR
1 Introduction
1.1 Research Background
1.2 Related Work
1.3 Objectives and Limitations of This Work
2 LQG/LTR Control Method
2.1 Kalman Filter
2.2 LQR
2.3 LTR Method
3 Take-off Guidance Longitudinal Control Design
3.1 Airworthiness Regulations
3.2 Control Quality Requirements
3.3 The Aircraft Model
3.4 PID Controller
3.5 LQG/LTR Controller
4 Simulation Verification and Result Analysis
5 Conclusion
References
Distributed Fault Diagnosis for Multi-agent Systems Against Actuator and Sensor Faults
1 Introduction
2 Preliminaries and Problem Formulation
2.1 Algebraic Graph Theory
2.2 Problem Formulation
3 Main Results
3.1 Sliding Mode-based Distributed Unknown Input Observer
3.2 Stability Analysis
4 Simulation Results
5 Conclusion
References
Distributed Fixed-Time Consensus Control for Uncertain Nonlinear Multi-agent Systems with Unmatched Disturbances
1 Introduction
2 Problem Formulation
3 Main Results
4 Simulation Results
5 Conclusion
References
Fast Star Detection Algorithm Based on Dyadic Wavelet Transform
1 Introduction
2 Dyadic Wavelet Transform
3 Method Description
3.1 Wavelet Base Construction
3.2 Star Detection
4 Simulation and Results
5 Conclusion
References
Simulation and Analysis of PMSM with Segmented Halbach Magnet Array
1 Introduction
2 Motor Structure Design
2.1 Schematic Structure
2.2 Winding Structure
2.3 Configurations of Segmented Halbach Array
3 Static Magnetic Field Simulation
3.1 Segmented Halbach Magnetic Configuration
3.2 Static Air-Gap Magnetic Field Harmonic Analysis
4 Transient Magnetic Field Simulation and Electromagnetic Torque Analysis
5 Conclusion
References
Performance Analysis and Design Optimization of Tubular Linear Oscillating Machine with Novel Compound Halbach Array
1 Introduction
2 Schematic Structure and Working Principle
2.1 Schematic Structure
2.2 Working Principle
3 Analysis of Mathematical Models
4 Characteristics of Output Performance
4.1 Force Output
4.2 Thrust Fluctuation
5 Sizing Optimization
6 Comparison of Electromagnetic Characteristics
7 Conclusion
References
Reachable Set Estimation for Singularly Perturbed Systems
1 Introduction
2 Problem Statement
3 Main Results
4 Simulation Results
5 Conclusions
References
Reachable Set Estimation for Nonlinear Systems with Disturbance via Sliding Mode Control
1 Introduction
2 Preliminaries
3 Main Results
4 Numerical Example
5 Conclusions
References
Research on Key Technologies of Air Defense Weapon Interception Decision System
1 Introduction
2 Modeling and Simulation of Air Defense Weapon Model
2.1 Air Defense Missile
2.2 Weapon Fire Control System
3 Research on Fast Real-Time Solution Algorithm of Attack Area
3.1 Sewing Attack Zone Algorithm
3.2 Fast Attack Area Solution Based on PSO-BP Neural Network
4 Air Defense Interception Decision and Missile Selection
4.1 Selection Based on Damage Probability Distribution
4.2 Selection Based on SVM Classifier
4.3 Experimental Simulation Scenario
5 Conclusions
References
Accurate Tracking Control of Autonomous Aerial Refueling Receiver Under Complex Wind Field Disturbances
1 Introduction
2 Preliminaries and Problem Statement
2.1 Mathematical Model of UAV
2.2 Wind Model
2.3 Model Transformation
2.4 Control Objective
3 Controller Design
3.1 Disturbance Observer Design
3.2 Flight Control Law Design
4 Simulation
5 Conclusion
References
Modeling and Optimization Analysis of Hypersonic Variable Swept Wing Aircraft
1 Introduction
2 A Mathematical Model of a Variable Sweep Aircraft
2.1 Structural Characteristic Equation
2.2 Spatial Motion Model
2.3 Aerodynamic and Moment Models
3 Aerodynamic Characteristic Analysis
3.1 Aerodynamic Coefficient Analysis
3.2 Optimum Lift-to-Drag Ratio
3.3 Optimal Variable Sweep Law Equation
4 Conclusion
References
Analysis of Excess Torque Suppression of Electric Load Simulator Based on Improved Feedforward Compensation Control
1 Introduction
2 Modeling and Analysis of Electric Load Simulator
2.1 Working Principle of the Electrical Load Simulator
2.2 Modeling of Electric Load Simulator
2.3 System Surplus Force Analysis
3 Principle of Structural Invariance
3.1 Position Feedforward Compensation Controller for Actuator
3.2 Speed Feedforward Compensation Controller for Actuator
4 The Simulation Results
4.1 Excess Torque Test with Zero Torque Input
4.2 Torque Tracking Performance
5 Conclusion
References
Attitude Control of Multi-motion Mode Spherical Probe Robots Based on Decoupled Dynamics
1 Introduction
2 Structure Introduction and Dynamics Modeling
2.1 Structure Introduction
2.2 Dynamic Model
3 Controller Design
3.1 Feedback Linearization
3.2 Sliding Mode Control
3.3 Stability Analysis
4 Simulation Results
5 Conclusion
References
Software Component Design and Application for Telemetry Data Processing of Launch Vehicle
1 Introduction
2 Component Technology of Aerospace TT&C Software
2.1 Overview
2.2 Component-Based Model of Aerospace Measurement and Control Software
2.3 Development Process
3 Application of Software Componentization in Data Processing
3.1 Demand Analysis
3.2 Design of Data Rapid Processing Platform
4 The Application of Software Componentization in Mathematical Operations
4.1 Demand Analysis
4.2 Mathematical Operation Component Design
5 Conclusion
References
A High-Precision Dot Matrix Character Recognition Method in Complex Background
1 Introduction
2 Synthetic Dot Matrix Character Image
3 Dot Matrix Character Detection
4 Dot Matrix Character Recognition
5 Conclusions
References
Tilt Tri-Rotor UAV Attitude Control in Hover Mode
1 Introduction
2 Mathematical Model
3 Backstepping Control Approach
4 Numerical Simulations
5 Conclusion
References
Deep Learning Based Visual-Inertial Odometry with External Attention Mechanism
1 Introduction
2 Related Works
2.1 Visual Localization and Visual-Inertial Odometry Based on Deep Learning
2.2 Attention Mechanism in the Deep Learning Framework
3 Method
3.1 Feature Encoder
3.2 Attention Based Multimodal Fusion
3.3 Feature Decoder and Pose Regression
3.4 Loss Function and Optimizer
4 Experiment
4.1 Dataset Preparation
4.2 Results
5 Conclusion
References
Aerodynamic Attitude Control of Ultra-low Earth Orbit Satellite
1 Introduction
2 Aerodynamic Model
2.1 Rarefied Gas Dynamics
2.2 Approximate Method of Aerodynamic Coefficient
3 Satellite Geometry and Aerodynamic Calculation
4 Aerodynamic Approximation Verification
5 Control Torque Distribution
6 Conclusion
References
Distributed Consensus Control for Heterogeneous Multi-agent Systems Under Communication Faults
1 Introduction
2 Preliminaries and Problem Statement
2.1 Heterogeneous Multi-agent System Dynamics
2.2 Graph Theory
2.3 Problem Statement
3 Distributed Consensus Control Law Design
3.1 Distributed Finite-Time Sate Observer
3.2 Non-singular Fast Terminal Sliding Mode Fault-Tolerant Control Method
4 Simulation
5 Conclusion
References
A Space Formation Transformation Method Based on Formation Database
1 Introduction
2 Formation Database Design
3 Formation Library Simulation Results
4 Space Formation Change Design
4.1 Height Change Sub-stage
4.2 Horizontal-Change Sub-stage
4.3 Height-Recovery Sub-stage
5 Simulation Results of Space Formation Change
6 Conclusion
References
The Fixed-Wing UAVs Formation Transformation with Time Consistency
1 Introduction
2 Problem Description
2.1 Minimum Energy Transformation
2.2 Minimum Time Transformation
2.3 Constraints of UAVs
3 Path Planning of Formation Transformation
3.1 Formation Description
3.2 Optimal Efficiency Model Solution with the Known i
3.3 Optimal Efficiency Model Solution with the Unknown i
3.4 Trajectory Generation Based on the Dubins Principle
4 Simulation Results
4.1 Optimal Efficiency Model Simulation with the Known i
4.2 Optimal Efficiency Model Simulation with the Unknown i
4.3 Simulation Results Analysis
5 Conclusion
References
Three-Dimensional Sliding Mode Guidance Law Based on Variable Universe Fuzzy Control
1 Introduction
2 Three-Dimensional Dynamic Model
3 FSMC Guidance Law Design
3.1 Segmented Sliding Mode Guidance Law Design
3.2 Fuzzy Rules Design
3.3 Design of Variable Universe Factors
4 Simulation Analysis
5 Conclusions
References
Collision-Free Motion-Primitive-Based Motion Planning Algorithm for Fixed-Wing Robotic Aircraft
1 Introduction
2 Notations and Problem Formulation
2.1 Notations
2.2 Problem Formulation
3 Proposed Approach
3.1 Motion Primitives for Normal Forward Flight
3.2 Security Flight Through Dense Obstacle Field
4 Evaluation Studies
4.1 Simulation Settings
4.2 Simulation Results
5 Conclusions
References
Pear Flower Recognition Based on YOLO v5s Target Detection Model in Complex Orchard Scenes
1 Introduction
2 Environment Construction and Training Model
2.1 Image Acquisition
2.2 Image Annotation
2.3 Model Training and Result Analysis
3 YOLO Target Detection Experiment
3.1 Single-Frame Image Target Detection Experiment
3.2 Continuous Frame Target Detection Experiment
4 Conclusion
References
Design and Experimental Analysis of Hot Fog Machine for Anti Freezing in Orchard
1 Introduction
2 Structure Design of Hot Fog Machine
2.1 Overall Structure and UG 3D Model of Hot Fog Machine
2.2 Design of Air Outlet Rotation
2.3 Selection of the Fan
2.4 Heating Bin
3 Calculation and Analysis of Flow Field of Hot Fog Machine
3.1 Relationship Between Motor Power and Air Outlet Wind Speed
3.2 Velocity Attenuation Model of Hot Fog Machine
3.3 Temperature Attenuation Model of Hot Fog Machine
3.4 Influence of Temperature Difference and Air Outlet Rotation
3.5 Jet Velocity Distribution of Hot Fog Machine in Greenhouse Environment
4 Fluent Flow Field Simulation
5 Experiment
6 Conclusion
References
Robust Decoupled Controller Design Based on Improved ESO of Quadrotor in Forward Flight
1 Introduction
2 Quadrotor Dynamics in Forward Flight
3 Controller Design
3.1 Improved ESO Design
3.2 Dynamic Inversion Design
4 Simulation Results
5 Conclusion
References
Design of Formation Holding Control for UAVs Maneuver Flight in Formation Based on Virtual Structure
1 Introduction
2 Build the System Model
2.1 The Simplified Model of Single UAV
2.2 Relative Motion Model of the Formation Plane
2.3 The Model of Virtual Point Tracking Reference Trajectory
2.4 The Equation of Reference Trajectory
2.5 The Equation of Virtual Point
3 Design the Controller
3.1 Virtual Point Trajectory Tracker
3.2 Formation Holder
4 Simulation Experiment and Result Analysis
5 Conclusions and Future Works
References
Wind Estimation of a Quadrotor Unmanned Aerial Vehicle
1 Introduction
2 Dynamic Model of Quadrotor UAV
2.1 Kinematic Equations
2.2 Dynamic Equations
2.3 The Force Caused by Wind
3 ADRC Controller
4 Neural Network Wind Estimation
5 Simulation
6 Conclusion
References
Vision-Aided Precision Landing Guidance Technology for Long-Endurance Loitering Missile
1 Introduction
2 Visual Aid Algorithm Based on Launch Inertial Coordinates
2.1 Launch Inertial Coordinate Reference Frames
2.2 Inertial Navigation Mechanization and Error Model
2.3 Visual Observation Model
3 Field Test
3.1 Testing System Configuration
3.2 Testing Results
4 Conclusion
References
Event Camera Visualization
1 Introduction
2 Event Camera
2.1 Principle of Operation
2.2 Comparison with Conventional Frame Cameras
3 Event Representations
3.1 Event Frame
3.2 Time Surface
3.3 Voxel Grid
4 Experiments
5 Conclusion
References
An Impact Angle Control Guidance via Self-restrained Look Angle Shaping
1 Introduction
2 Engagement Kinematics
3 Guidance Law Design
4 Numerical Simulation
4.1 Performance of IACG
4.2 Comparison Study
5 Conclusion
References
Map Aided Visual-Inertial Integrated Navigation for Long Range UAVs
1 Introduction
2 Related Work
2.1 Map Aided Geo-Localization
2.2 Visual-Inertial Integrated Navigation
3 Methodology
3.1 Feature Extraction and Matching
3.2 Outlier Filtering and Position Estimation
3.3 Matched Position Filtering and Information Fusion with EKF
4 Experiments and Results
4.1 Dataset Acquisition
4.2 Experimental Results
5 Conclusions
References
Obstacle Avoidance and Trajectory Tracking Control of a Quadrotor UAV Under Wind Disturbance
1 Introduction
2 Quadrotor and Wind Field Model
2.1 Quadrotor Model
2.2 Wind Field Model
3 Trajectory Tracking Control System
3.1 Position Feedback Controller
3.2 Attitude Feedback Controller
4 Obstacle Avoidance Trajectory Generation
5 Simulation Results
6 Conclusion
References
Non-cooperative Spacecraft Detection Based on Deep Learning Under Complex Space Environment
1 Introduction
2 Proposed Method
2.1 Ringed Residual U-Net
2.2 Loss Function
3 Experiments and Analysis
4 Conclusion
References
An Online Proportional Guidance Midcourse Guidance Method for Near Space Targets Based on Air-Breathing Hypersonic Platform
1 Introduction
2 Problem Statement
2.1 Scheme Conception
2.2 Mathematical Model
2.3 Terminal Constraints and Control Variable Constraints
2.4 Midcourse Guidance Performance Index Constraints
3 Midcourse Guidance Law Design Method Based on the Gauss Pseudospectral Method
3.1 Discretization of State Variables and Control Variables
3.2 Discretization of Constraints and Performance Indicators
3.3 Discretization of Control Variable Constraints
3.4 Performance Indicators are Discretized
4 Performance Evaluation
4.1 Predictive Guidance Simulation
4.2 Comparison Analysis
5 Conclusion
References
A Novel Outlier-Robust Filter with Gaussian Multi-scale Mixture Model
1 Introduction
2 Theoretical Framework
2.1 Problem Formulation
2.2 GMSMM Based Hierarchical Prior Models
2.3 Posterior PDFs Calculation
3 Experiments
3.1 Synthetic Data
3.2 Real Vehicle Navigation Data
4 Conclusion
References
Disturbance Observer Based Fractional-Order Sliding Mode Control of Permanent Magnet Synchronous Motor
1 Introduction
2 Problem Formulation
3 Disturbance Observer Based Controller Design and Analysis
3.1 Disturbance Observer Design
3.2 Controller Design and Analysis
3.3 Stability Analysis
4 Simulation and Experiment
4.1 Simulation
4.2 Experiment
5 Conclusion
References
Comprehensive Resilience Evaluation Method for UAV Swarm Based on Multiple Performance Parameters
1 Introduction
2 System Description and Modeling
2.1 Network Topology Design
2.2 Attack Strategies
2.3 Recovery Strategies
3 Comprehensive Resilience Evaluation Method
3.1 Resilience Metric
3.2 Establishing Comprehensive Resilience Metric
3.3 Performance Parameters
4 Simulation Studies and Discussion
5 Conclusion
References
RPnP Pose Estimation Optimized by Comprehensive Learning Pigeon-Inspired Optimization for Autonomous Aerial Refueling
1 Introduction
2 CLPIO Algorithm
2.1 PIO Algorithm
2.2 CLPIO Algorithm
3 Optimized RPnP Pose Estimation Method
4 Simulation Results and Analysis
5 Conclusions
References
Relation Adaptation of the Grouped Multiagent Network in Task Allocation
1 Introduction
2 Model Description
2.1 Task Allocation in Multiagent Groups
2.2 Relation Adaptation of Multiagent Groups
3 Relation Adaptation Based on Q-Learning
3.1 Stateless Q-Learning
3.2 Evolution Reward
3.3 Algorithm of Relation Adaptation
4 Experiments and Analysis
5 Conclusions
References
Simulation of Atmospheric Disturbance During Approaching and Landing of Civil Aircraft
1 Introduction
2 Atmospheric Disturbance Simulation Model
2.1 Runway Coordinate System
2.2 Mean Wind Model
2.3 Turbulence Model
2.4 Wind Shear Model
3 Simulation Results and Analysis
3.1 Simulation Analysis of Mean Wind Model
3.2 Simulation Analysis of Turbulence Model
3.3 Simulation Analysis of Wind Shear Model
3.4 Simulation Analysis of Atmospheric Disturbance Model
4 Conclusion
References
Vertical and Lateral Trajectory Coupling Method in 4D Trajectory Prediction
1 Introduction
2 4D Trajectroy Prediction
3 Adjustment Method for Restriction at Waypoint
3.1 Altitude Restriction at Waypoint
3.2 Altitude Restriction at Next Waypoint
3.3 Speed Restriction at Waypoint
4 Method to Calculate TOD
5 Simulation Results
6 Conclusion
References
Active Disturbance Rejection Attitude Control of Underactuated Hypersonic Vehicle
1 Introduction
2 The Model of Underactuated Hypersonic Vehicle
2.1 Dynamic Equation of Hypersonic Vehicle
3 The Design of Underactuated System ADRC Controller
3.1 Extended State Observer
3.2 Nonlinear Feedback Control Law
4 Iterative Learning ADRC Parameter Setting
4.1 Iterative Learning Control
5 Simulation Results
6 Conclusion
References
Sliding Mode Formation Control Based on Event-Triggered Strategy for UAVs
1 Introduction
2 UAV Formation Model
3 Controller Design
3.1 Sliding Mode Controller
3.2 Event-Triggered Function
3.3 Stability Analysis
4 Numerical Simulation
5 Conclusion
References
Robust Formation Control for Quadrotors with Obstacle Avoidance and Reconfiguration
1 Introduction
2 Problem Formulation
2.1 Model of the Quadrotor
2.2 Formation Algorithm
3 Fixed-Time Disturbance Observer
4 MPC with Feedforward of the FTDOB
4.1 Expected Trajectory Tracking
4.2 Obstacle Avoidance
4.3 Inner-Collision Avoidance
5 Simulation
5.1 Effectiveness of FTDOB
5.2 Superiority of MPC with Feedforward Correction
5.3 Verification of Obstacle Avoidance
6 Conclusions
References
General Tactical Maneuvering Flight Decision and Control
1 Introduction
2 Strategy-Based Tactical Maneuver Flight Decision
2.1 Search Maneuver Types
2.2 Search Maneuver Timing
2.3 Modeling UAV’S Motion
2.4 Select Situation Assessment Indicator
3 Autonomous Tactical Maneuver Control
3.1 Maneuver Control Strategy
3.2 Tactical Maneuver Trajectory Library
4 Simulation
4.1 Mathematical Simulation
4.2 Semi-physical Simulation
5 Summary
References
Approach Guidance for Rendezvous of Non-cooperative Targets Based on Onboard Trajectory Planning
1 Introduction
2 Dynamics and Constraint Models
3 Approach Guidance Method
3.1 Trajectory Planning-Based Guidance Strategy
3.2 Trajectory Planning Model
3.3 Reference Gravity Sequence Generation
3.4 Onboard Trajectory Planning
4 Numerical Simulations
4.1 Simulation Condition
4.2 Results for Non-maneuvering Target
4.3 Results for Maneuvering Target
5 Conclusion
References
Research on Longitudinal Control Law Design of Thrust Vector Aircraft Based on Dynamic Inverse
1 Introduction
2 Design of Longitudinal Control Model
2.1 Longitudinal Model Design of Thrust Vector
2.2 Proposed Control Method and Analysis
2.3 Outer Loop Control Method
2.4 Inner Loop Control Method
3 High Angle of Attack Control Simulation
3.1 Simulation Condition
3.2 Simulation Results
4 Conclusion
References
ESO Based Adaptive Fault-Tolerant Control for Drag-Free Satellite
1 Introduction
2 Problem Formulation
2.1 Dynamic Model of Payload Module
2.2 PM Equation of State Model Considering Actuator Faults
3 Control System Design
3.1 Adaptive Fault Tolerant Controller
3.2 Interference Controller Based on ESO
3.3 Stability Analysis
4 Simulation Results
5 Conclusion
References
A Data-Driven Predictive Maintenance Method for Quadrotor Propulsion System Based on LSTM Network
1 Introduction
2 Problem Statement and Assumption
3 Data-Driven Predictive Maintenance Method
4 Experiment and Result Analysis
4.1 Experimental Introduction
4.2 Analysis of Experimental Result
5 Conclusion
References
Fire-Fighting Task Simulation System of Heterogeneous Multi-UAVs Based on ROS
1 Introduction
2 System Composition
2.1 System Architecture
2.2 Element Analysis of Simulation Scene
2.3 Task Process
3 System Accomplishment
3.1 Simulation Environment Construction
3.2 UAV Model Construction
3.3 UAV Control
4 Simulation Results
4.1 Simulation of Fire-Fighting Strategy in Urban Scene
4.2 Simulation of Fire-Fighting Strategy in Forest Scene
5 Conclusion
References
Applicability of Conventional Longitudinal Flying Qualities Criteria in the Ground Attack Mission
1 Introduction
2 Evaluation Experiments for the Ground Attack Mission
2.1 Test Maneuver Selection
2.2 Performance Standards of the Maneuver
2.3 Evaluation Case
2.4 Results of Evaluation Experiments
3 Analysis and Discussion
3.1 Bandwidth Criteria
3.2 CAP Criteria
3.3 ωspTθ2 Criteria
4 Conclusion
References
Influence of Wing Damage on Lateral Flying Qualities of Fly-By-Wire Aircraft
1 Introduction
2 Assessment Method for Aircraft with Wing Damage
2.1 Demonstration Task Selection
2.2 Motion Mode of the Aircraft with Wing Damage
2.3 Ground-Based Flight Simulation Platform
2.4 Flying Qualities Assessment Scale
3 Assessment Experiment
3.1 Assessment Case
3.2 Results of Assessment Experiment
4 Analysis and Discussion
5 Conclusion
References
A Deep Reinforcement Learning Approach for Quadrotor Path Planning with Search-Based Planner Optimization
1 Introduction
2 Problem Formulation
3 Approach
3.1 Reinforcement Learning Setup
3.2 DRL Network
3.3 Search-Based Optimization
4 Experiments and Results
4.1 Experiments Setup
4.2 Training Evaluation
4.3 Testing Evaluation
5 Conclusion
References
Research on Transition Flight Control Method of QTR Aircraft
1 Introduction
2 QTR Aircraft Dynamics Model
3 Dynamic Inverse Method Based on Equivalent Control Input
4 Weighted Incremental Dynamic Inverse Method
4.1 Incremental Dynamic Inverse Method for Non-affine Systems
4.2 QTR Aircraft Incremental Affine Nonlinear System
5 Design of Control Law for QTR Aircraft in Level Flight
6 Simulation
6.1 The Whole Process Simulation of QTR Aircraft
6.2 Influence Analysis of Flight Mode Switching
7 Conclusion
References
Dynamic Modeling and Stochastic Feedback Control of the Space Rigid-Flexible Manipulator
1 Introduction
2 Dynamic Modeling
3 Event Trigger Based Decoupled Feedback Control Scheme
4 Computational Results
5 Conclusion
References
A Novel AGSTSMO-PPBFTC Method for Reentry HFV Subject to Attitude Angle Constraints and Input Delay
1 Introduction
2 System Description
3 Control Design for Attitude System
3.1 AGSTSMO Design
3.2 PPBFTC Subject to Input Delay
3.3 Stability Analysis
4 Simulation Example and Analysis
5 Conclusion
References
Fault Diagnosis for Aircraft Aileron Actuator Based on Graph Regularization Network
1 Introduction
2 Fault Diagnosis Method Based on Graph Regularization Network
2.1 Fault Diagnosis Framework of the Proposed Method
2.2 Graph Construction for Monitoring Samples
2.3 Fault Diagnosis Model Based on Graph Regularization Network
3 Case Study
3.1 Introduction of Aileron Actuator Simulation Dataset
3.2 Graph Construction for Aileron Actuator Monitoring Samples
3.3 Fault Diagnosis for Aileron Actuator
3.4 Comparison of Different Methods
4 Conclusion
References
An Improved Integrated Navigation Fault Tolerance Algorithm Based on Dynamic Evaluation
1 Introduction
2 Traditional Navigation System Fault Detection Method
3 Fault Tolerant Algorithm of Integrated Navigation Based on Dynamic Evaluation
3.1 The Method of Using Mahalanobis Distance to Judge Faults
3.2 Fuzzy Fault-Tolerant Method Based on T-S Model and Adaptive Gradient Descent Algorithm
4 Simulation and Analysis
5 Conclusion
References
Adaptive Neural Network Approximator-Integrated Fault Detection Strategy for Electro-Mechanical Flight Actuators
1 Introduction
2 Preliminary
2.1 Dynamic Model of EMFAs
2.2 Problem Formulation
3 Adaptive Neural Network Approximator-Integrated Fault Detection Scheme Design
3.1 Description of RBF Neural Network
3.2 Configuration of Adaptive Neural Network Approximator
3.3 Stability Analysis
3.4 Tracking Error-Based Fault Detection Scheme
4 Numerical Experiments and Analysis
4.1 Parameter Selecting
4.2 Simulation Analysis
5 Conclusions
References
Research on Trajectory Prediction of Near Space Target Based on NAR Neural Network
1 Introduction
2 NAR Neural Network Prediction Method
2.1 Introduction of NAR Neural Network
2.2 Model Training
2.3 Trajectory Prediction Process
3 Simulation Results and Analysis
3.1 Trajectory Prediction Simulation
3.2 The Influence of Different Observation Duration and Observation Starting Point on the Accuracy of Trajectory Prediction
4 Conclusion
References
Study on Spacecraft Ultra-stable Platform Control for Tai Chi Mission Based on LTV-MPC
1 Introduction
1.1 Tai Chi Program
1.2 Control of Spacecraft Ultra-stable Platform
2 Model of Spacecraft Ultra-stable Platform
3 Controller Design
3.1 Problem Description
3.2 LTV min-max Robust MPC Algorithm
3.3 Controller Settings
3.4 Simulation and Results
4 Conclusions
References
Relative Pose Estimation from Range Measurements for Collaborative SLAM System
1 Introduction
2 Related Work
3 Problem Formulation
4 Uniqueness Argument
5 Algebraic Method
6 Iterative Refinement Algorithm
7 Simulation Results
8 Conclusion and Future Work
References
Separability Promotion Algorithm Based on KPCA Plus LDA
1 Introduction
2 PCA
3 KPCA
3.1 A Simple Numerical Simulation Example 1
3.2 Numerical Simulation Example of an Artificial Dataset
3.3 Separability Promotion Algorithm Based on KPCA Plus LDA
4 Experimental Results and Analysis
5 Conclusion
References
Barrier Lyapunov Function-Based Fault-tolerant Adaptive Control for the Large Civil Aircraft Systems with Uncertainties and Faults
1 Introduction
2 Dynamics Modeling of the Aircraft
3 BLF-Based Adaptive FTC Design
4 Simulations and Analysis
4.1 Case A: A Simplified Longitudinal Nonlinear Aircraft Dynamics
4.2 Case B: Nonlinear Longitudinal Model of Boeing 747-100/200
4.3 Simulation of Case A
4.4 Simulation of Case B
5 Conclusion
References
An Improved Directed Acyclic Graph SVM
1 Introduction
2 Support Vector Machine
3 Improved DAGSVM
3.1 OAOSVM
3.2 Fisher Separability Measure
4 Node Arrangement Approach
5 Experimental Analysis Comparison
6 Conclusion
References
Event-Triggered Distributed Multisensor Multitarget Tracking with GM-PHD Filter
1 Introduction
2 Preliminaries
2.1 The Communication Topology
2.2 Problem Formulation
2.3 GM-PHD Filter Algorithm
3 Event-Triggered GM-PHD Algorithm
4 Event-Triggered Distributed Multisensor Multitarget Tracking with GM-PHD Filter
5 Numerical Results and Analysis
5.1 The Simulation Scene
5.2 Event-Triggered Performance
6 Conclusions
References
Generation and Optimization of Robust Trajectory for Tilting Quadrotor
1 Introduction
2 Modeling of Tilting Quadrotor
3 Motion Planning Algorithm
3.1 Spatial Trajecotry Generation
3.2 Attitude Sequence Generation
4 Simulation Experiments
5 Conclusions and Future Work
References
Inertial Navigation/Mileage Parameter Calibration Method Based on Nonlinear Optimization
1 Introduction
2 Integrated Navigation System Description
3 Inertial Navigation/Mileage Calibration
3.1 Establish Nonlinear Model
3.2 Gauss Newton Method
4 Simulation and Experiment
4.1 Simulation Analysis
4.2 Vehicle Experiment
5 In Conclusion
References
Disturbance Rejection LPV Control of Morphing Aircraft Based on Extended State Observer
1 Introduction
2 Morphing Aircraft Model Description
2.1 Longitudinal Nonlinear Model
2.2 Affine LPV Model of Morphing Aircraft
3 Controller Design for Morphing Aircraft
3.1 Baseline State Feedback Controller Design
3.2 The Extended State Observer Design and Disturbance Compensation
4 Simulation and Analysis
5 Conclusions
References
Augmenting Object Detection in Adverse Conditions with Polarization-Encoded Images
1 Introduction
2 Related Works
3 Polarization Formalism
3.1 Polarization Formalism
4 Methodology
4.1 Data Acquisition
4.2 Data Labelling
4.3 Polarization Information Extraction
5 Experiments
5.1 Experimental Setup
5.2 Results and Discussion
6 Conclusion and Future Work
References
A Review of Unmanned Aerial Vehicle Swarm Task Assignment
1 Introduction
2 Task Assignment Problem Model
3 Task Assignment Solution Method
3.1 Centralized Method
3.2 Distributed Method
3.3 Central-Distributed Method
4 Main Development Directions
4.1 Actual Model Building
4.2 Task Assignment Under Uncertain Conditions
4.3 Dynamic Real-Time Task Assignment
4.4 Task Assignment Based on Artificial Intelligence Method
5 Conclusion
References
Research of Pedestrian Tracking Algorithm in Complex Environment Based on YOLOv5 and TransT
1 Introduction
2 Pedestrian Detection and Tracking Algorithm
2.1 Overall Architecture
2.2 Detection Algorithm of Tracked Pedestrian in Complex Environment
2.3 Pedestrian Tracking Algorithm Based on TransT
3 Experiment and Analysis
3.1 Experimental Environment and Datasets
3.2 Experiment of Pedestrian Detection in Complex Environment
3.3 Pedestrian Tracking Experiment in Complex Environment
4 Conclusion
References
Research on USV Course PID Control Based on Improved Genetic Algorithm
1 Introduction
2 USV Mathematic Modeling
3 PID Controller
4 Improved Genetic Algorithm
4.1 Basic Genetic Algorithm
4.2 Improved Algorithm
5 Simulation Experiment
6 Conclusion
References
Formal Modeling and Safety Verification for Mode Logic Requirements of Flight Guidance Control System
1 Introduction
2 Requirements-Oriented Formal Modeling and Verification
2.1 Modeling and Verification Process Framework
2.2 Key Issues in the Modeling and Validation Process Framework
3 Case Study
3.1 Case System Modeling
3.2 Correct System Requirements Properties Verification Comparison
3.3 Incorrect System Requirements Properties Verification Comparison
3.4 Comparsion Summary
4 Summary
References
Characteristic Analysis of Torque Monitoring and Limiting Technology of High-Lift System
1 Introduction
2 Electronic Torque Monitoring and Limiting Technology
2.1 Structure of Electronic Torque Limiter
2.2 Introduction of Electronic Torque Monitoring and Limiting Technology System
2.3 Control Logic of Electronic Torque Monitoring and Limiting Technology
3 Simulation Model
4 Analysis of Simulation Results
4.1 Performance Comparison of Mechanical Torque Limiter and Electronic Torque Monitoring and Limiting Technology
4.2 Sensitive Factors Affecting the Peak Torque of Electronic Torque Monitoring and Limiting Technology
5 Conclusion
References
Research on Modeling Method of UCAV Swarm Architecture Based on Capability
1 Introduction
1.1 Background and Status
1.2 UCAV Swarm
2 UCAV Swarm Architecture Modeling Approach
2.1 Capability-Based Architecture Modeling
2.2 UCAV Swarm Architecture Layering
3 Architecture Capability Transmission
4 Architecture Reference Ontology
5 Case Application
5.1 Air Anti-surface Warfare Operation
5.2 Architecture Modeling
6 Conclusion
References
Modeling and Simulation of Control Systems for Brushless DC Motor Based on Hall Sensor
1 Introduction
2 BLDCM Based on Hall Sensor
2.1 Application of Hall Sensor in Motors
2.2 Mathematical Model of BLDCM
3 Principle and Structure of Three BLDCM Control Systems
3.1 Single Closed-Loop Control System Based on Speed Loop
3.2 Double Closed-Loop Control System Based on Speed Loop and Current Hysteresis Loop
3.3 Double Closed-Loop Control System Based on Fuzzy-Controlled Speed Loop and Current Hysteresis Loop
4 Establish Simulation Models of Two BLDCM Control Systems
4.1 Simulation Model of BLDCM Ontology and Its Inverter Bridge
4.2 Simulation Model of Logical Phase Transition
4.3 Simulation Model of Current Hysteresis Regulation
4.4 Simulation Model of Fuzzy PI Controller and Speed PI Controller
4.5 Simulation Model of Hall Sensor Speed Measurement
4.6 Simulation Model of Three BLDCM Control Systems
5 Comparison and Analysis of Simulation Results
6 Conclusion
References
The Application of Synergetic Control in Nonlinear Control Systems on the Example of Airship Flight Control
1 Introduction
2 Problem Formulation and Airship Model
2.1 Model of Airships
3 Controller Design
4 Simulation Experiment
5 Conclusions
References
Image Enhancement and Concealed Object Detection Technology Based on Polarization Vision
1 Introduction
2 Polarization Vision
2.1 Introduction of Polarization Information and Polarization Vision Sensor
2.2 Dense Measurement of Polarization Information Based on Least Squares
3 Image Enhancement and Concealed Object Detection Based on Polarization Vision
3.1 Polarization Image Enhancement Under Complex Circumstances
3.2 Polarization Concealed Object Detection Based on Deep Learning
4 Experiment
4.1 Experiment for Image Enhancement Based on Polarization Vision
4.2 Experiment for Concealed Object Detection Based on Polarization Vision
5 Conclusion
References
Design of Airport Simulation Environment for Pilot Cognitive Teaching Based on Virtual Simulation Technology
1 Introduction
2 Requirement Analysis in Pilot Cognitive Teaching
2.1 Definition of Cognition
2.2 Requirement Analysis of Airport Simulation Environment
3 Simulation Environment Design of Airport
3.1 Construction of Key Buildings Function
3.2 Multi Angle Browsing Function
3.3 Navigation Identification Function
3.4 Light Mutation Function
3.5 System Integration and Demonstration
4 Conclusion
References
Distributed Fault Estimation for Multi-agent Systems Subject to Multiple Time Delays
1 Introduction
2 Problem Description
3 Main Results
3.1 Augmented System
3.2 Observer Design
4 Simulations
5 Conclusion
References
Fast Consensus of Second-Order Multi-agent Systems Based on Past State Prediction
1 Introduction
2 Preliminaries
3 Main Results
3.1 Fast Stationary Consensus
3.2 Fast Dynamic Consensus
4 Illustrative Examples
5 Conclusions
References
A Bio-Inspired Array Skylight Compass for Urban Ground Navigation
1 Introduction
2 Bio-Inspired Array Skylight Compass
2.1 Hardware Introduction
2.2 Polarized Skylight Compass Software Data Flow
3 Design and Implementation of Orientation Algorithm
3.1 System Orientation Solution Process
3.2 Polarization Information Calculation
3.3 A Heading Solution Method Based on Extracting Solar Meridian Direction
4 Experimental Verification
4.1 Uniaxial Rotation Experiment
4.2 Vehicle Experiment
5 Conclusions
References
Low-Cost Video Super-Resolution Assisted by Event Signals
1 Introduction
2 Related Work
3 The Event Assisted Video Super-Resolution System
3.1 Signal from Event Camera
3.2 Workflow of Event Signal Assisted Hierarchical Super Resolution
4 Event Guided Hierarchical Video Super Resolution
5 Simulation Results
6 Conclusion
References
Temperature Compensation Method of Accelerometer Based on Improved Pigeon-Inspired Optimization
1 Introduction
2 Temperature Compensation Methods Based on Evolutionary Algorithms and Improved PIO
2.1 Discrete Calibration and Temperature Compensation Method of INS
2.2 Temperature Compensation Method Based on Evolutionary Algorithms
2.3 PIO and Improved PIO Algorithm
3 Temperature Compensation Effect
3.1 Calibration Data and Results of the Discrete Calibration Method
3.2 Results of Evolutionary Algorithms
3.3 Results of Evolutionary Algorithms with Less Test Data
4 Discussion
References
Underwater Noncooperative Target Localization and Tracking Using Range-Only Measurements
1 Introduction
2 Problem Statement and System Model
2.1 Problem Statement
2.2 System Model
3 Target Localization and Tracking
3.1 Pose-Based Localization
3.2 Region-Optimal Tracking
4 Simulation
5 Conclusions
References
A Study on Modeling and Simulation Method for Aircraft Generator Voltage Regulation
1 Introduction
2 Three-Stage AC Synchronous Generator
2.1 Structure Schematic
2.2 Voltage Regulation
3 Traditional Modeling Method
3.1 PMG Circuit Model
3.2 The Exciter and Main Generator Circuit Model
3.3 GCU Main Circuit Model
3.4 Voltage Regulator Circuit Model
3.5 Modeling Practical Difficulties by Using Generator Parameters
4 Transfer Function Modeling
4.1 Modeling Principle
4.2 Identification Method
4.3 Application Example
5 Conclusion
References
A New Method of Distributed Formation Control for Multi-agent Systems Based on Game Strategy
1 Introduction
2 Problem Description
3 Distributed Formation Control Algorithm Design
3.1 Preliminaries
3.2 Information Sharing Mechanism Design
3.3 Convergence Analysis
4 Simulations
5 Conclusion
References
Sun Time-Sequence-Based Underwater Autonomous Positioning to Eliminate Positioning Ambiguity
1 Introduction
2 Positioning Ambiguity of Single Sun-Based Method
3 Time-Sequence Sun-Based Positioning
4 Simulation and Analysis
4.1 Positioning Ambiguity Elimination
4.2 Positioning Performance with the Parameters of TSS Method
5 Conclusion
References
Multi-arm Space Robot Mission Planning Based on Hierarchical Task Network
1 Introduction
2 HTN Task Planning Based on TD Learning
2.1 Temporal Difference Tree Search Based on MCTS
2.2 TD-HTN Formal Description
2.3 TD-HTN Algorithm
3 Experimental Evaluation
4 Conclusions
References
Weighting Strategy of Multi-camera System for Pose Measurement
1 Introduction
2 Related Work
3 Model Setup
3.1 Object Feature Extraction
3.2 Pose Calculation
3.3 Cameras Layout
4 Multi-camera Weighting Strategy
5 Simulation
5.1 Simulation Image and Simulation Layout
5.2 Simulation Results
5.3 Discussion
6 Conclusion
References
Glide Guided Bomb Longitudinal Controller Design Based on Active Disturbance Rejection Control
1 Introduction
2 Plant Processing
3 Controller Design
3.1 PID Design
3.2 ADRC Design
4 Simulation and Analysis
4.1 Analysis of Controller Performance
4.2 Semi-physical Simulation
5 Conclusion
References
Targetless Extrinsic Calibration for LiDAR and Camera Based on Multi-scale Adaptive Voxelization
1 Introduction
2 Related Works
3 Methodology
3.1 Feature Extraction
3.2 Feature Matching
3.3 Extrinsic Calibration
4 Experimental Verification
4.1 Calibration Results in Multiple Scenes
4.2 Comparison Experiments
5 Conclusion
References
Game Decision of Multi-UAV Based on Improved Shark Smell Optimization Algorithm
1 Introduction
2 Problem Description
2.1 Uncertain Game Model
2.2 Linear Programming Model
3 Improved -SSO Algorithm
4 Simulation Examples
5 Conclusion
References
Large Angle of Attack Prediction for Tail-Sitter Using ANN-Based Flush Air Data Sensing
1 Introduction
2 Application of Flush Air Data Sensing System on Tail-Sitter
2.1 UAV Platform
2.2 Pressure Sensors Layout
2.3 Flush Air Data Sensing System Model
2.4 Numerical Simulation
3 Large AoA Prediction
3.1 The Neural Network Structure
3.2 Acquisition and Division of Data Set
3.3 AoA Prediction Result
4 Conclusion
References
A Novel Interacting Multiple Model Based Robust Filter for SINS/GPS
1 Introduction
1.1 Integrated Navigation
2 Problem Formulation
3 Design of IMM-RKF
3.1 RKF Algorithm for Heavy-Tailed Noises
3.2 IMM-RKF Algorithm
4 Simulation Experiments
5 Conclusions
References
Model-Based Compensation for Phase Lag and Residual Measurement Error Induced by Low-Pass Filtering in Feedback Control Systems
1 Introduction
2 Problem Formulation
3 The Proposed Control Framework
3.1 Control Framework with Phase Lag Compensation
3.2 Design of the Measurement Error Estimator
3.3 Design Example: Servomotor Positioning System
3.4 Stability and Performance Analysis
4 Simulation Results
5 Concluding Remark
References
Robust Integrated Navigation Filtering Method Based on Unknown Input Estimator
1 Introduction
2 Problem Formulation
3 SINS/GPS Robust Filter with Unknown Input
3.1 Unknown Input Estimator
3.2 Unknown Input Exists in Both States and Measurements
4 Experiment and Analysis
4.1 Simulation Experiment
4.2 On-Vehicle Experiment
5 Conclusion
References
Trajectory Tracking of Maneuvering Reentry Vehicle Using Nonlinear Estimate Model
1 Introduction
2 Maneuvering Reentry Dynamics
2.1 Maneuvering Reentry Motion
2.2 Dynamic Models
3 Nonlinear Maneuver Coefficient Model Uncertainties
4 State Space Model Representation and Bayesian Estimation
5 Numerical Results
6 Conclusions
References
NeRFE: Free View Synthesis for Event Data
1 Introduction
2 Related Work
2.1 Event Generation and Representation
2.2 Event Applications
2.3 Novel View Synthesis
3 Method
3.1 Event Pre-processing
3.2 Neural Rendering
3.3 Loss Function
3.4 Implementation Details
4 Experiments
4.1 Datasets
4.2 Results
4.3 Ablation Study
5 Conclusion
References
UAV Task Assignment Based on Potential Game with Improved SAP Algorithm
1 Introduction
2 Mathematic Model
2.1 Simplified Model of UAVs
2.2 Task Assignment Model
3 Task Assignment Based on Potential Game
3.1 Game Framework and UAV Utility Function
3.2 Game Optimization Algorithm
3.3 Analysis of NE
4 Simulation Experiments
5 Conclusion
References
False Alarm and Missed Detection Controllable Validation Method for GNSS Integer Ambiguity Rounding Estimator
1 Introduction
2 Methodologies
3 Experiments
4 Conclusions
References
Six-Phase Permanent Magnet Synchronous Motor with Compound Halbach Magnet Array
1 Introduction
2 PMSM Design
2.1 Structure Design
2.2 Electromagnetic Field FEA
3 Analysis and Optimization of Key Parameters
3.1 Dimensional Parameter Influence Analysis
3.2 Magnetization Direction Influence Analysis
4 Conclusion
References
A New Integrated Orientation Method for UUV Fused with Polarization Pattern and Light Intensity
1 Introduction
2 Solar Vector Fusion Method Based on Underwater Polarization Pattern/Light Intensity
2.1 Polarization Pattern Information Processing
2.2 Light Intensity Image Processing
2.3 Fusion of Polarization Pattern and Light Intensity
3 Underwater MIMU/SVF Integrated Orientation System Model
3.1 The State Model of the System
3.2 The Measurement Model of the System
4 Experimental and Results Analysis
5 Conclusion
References
Collaborative SLAM System Based on Shared Priori Maps
1 Introduction
2 Related Work
3 System Structure
3.1 Multi-agent Initialization
3.2 Communication Module
3.3 Map Information Utilization, Expansion and Optimization
3.4 Error Analysis and Map Fusion
4 Experimental Results
4.1 Test Setting
4.2 Localization Accuracy Test
4.3 Test on Map and Computational Power Consumption
5 Conclusion
References
Calibration Problem for Accelerometer Unit with Restriction on Its Admissible Orientations
1 Introduction
2 Model of the Unit of Accelerometers
3 Calibration Problem
4 Theory of Spatial Guaranteeing Estimation
5 Solution of the Planar Calibration Problem
5.1 Numerical Solution of the Planar Problem
5.2 Assumed Analytical Solution of the Original Problem
5.3 Assumed Analytical Solution of the Dual Problem
5.4 Analytical Solution of the Planar Problem for the Coefficient k1
6 Conclusions
References
Delay-Based Feedback Formation Control for Unmanned Aerial Vehicles with Feedforward Components
1 Introduction
2 Problem Formulation
3 Design of the Formation Controller
4 Simulation Examples
4.1 Parameters of the UAVs System and Formation Patterns
4.2 Formation Control Effects of the UAVs System
4.3 Effects of Time-Delay on Formation Performance
5 Conclusion
References
UAV Cluster Confrontation Decision-Making Algorithm Based on Two-Layer Intelligent Optimization
1 Introduction
2 Confrontation Situation Assessment Design
2.1 Maneuver Strategy
2.2 Reward Function
3 Payoff Matrix According to Different Cluster Confrontation Methods
3.1 Global Confrontation
3.2 Group Confrontation
4 Nash Equilibrium Confrontation Decision-Making Algorithm
5 Solving the Nash Equilibrium Solution
6 Example
7 Conclusion
References
NIN-VINS: Neural Inertial Navigation Aided Visual-Inertial System for Pedestrian Dead Reckoning
1 Introduction
2 Related Work
2.1 Neural Inertial Navigation Methods
2.2 Visual-Inertial Systems
3 Method
3.1 System Overview
3.2 Neural IMU Network
3.3 Data Fusion
4 Experiments
4.1 Evaluation on Public Dataset
4.2 Challenging Evaluation Experiment
5 Conclusions
References
Robust Underwater Direction-of-Arrival Tracking with Uncertain Measurement Noise
1 Introduction
2 Problem Formulation
2.1 Underwater Target’s Bearing Angle Kinematic Model
2.2 Measurement Model Using UCAs
3 VB-EKF for Robust DOA Tracking
3.1 Choice of Prior Distribution
3.2 VB-EKF Algorithm
4 Simulations
4.1 Simulation Scenario
4.2 Simulation Results
5 Conclusion
References
Layout Design of Satellite Star Sensor Fixed to Rotation Platform
1 Introduction
2 Spatial Environment Constraints
3 Layout Design of STS
3.1 Layout Design Scheme of STS
3.2 Layout Design of STS with Multiple Constraints
3.3 Attitude Determination Accuracy of Double STS
3.4 STSs Switching Logic
4 Simulation Analysis
4.1 Validation of on Orbit Operation of STS
4.2 Impact Verification of Different Seasons
5 Conclusion
References
Fabry-Pérot Interferometer-Based Raman Mirror Position Measurement Method for Cold Atom Gravimeter
1 Introduction
2 Method
2.1 Gravity Measurements
2.2 Displacement Measurement
2.3 Vertical Deviation Correction
3 Simulation Results
4 Conclusion
References
Entry Trajectory Optimization Satisfying Geographic Constraints
1 Introduction
1.1 A Subsection Sample
2 Fundamentals
2.1 Entry Dynamics
2.2 Entry Trajectory Constraints
2.3 Problem Formulation
3 Methodology
3.1 Outline
3.2 Multi-phase Technique
3.3 Artificial Potential Function
4 Numerical Simulation
5 Conclusion
References
Parameters Setting of Firefly Algorithm
1 Introduction
2 Standard Firefly Algorithm
3 Light Absorption Coefficient
3.1 Theoretical Analysis
3.2 Numerical Experiments
3.3 Conclusions
4 Step Size Parameter
4.1 Theoretical Analysis
4.2 Numerical Experiments
4.3 Conclusions
5 Conclusions
References
Attitude Control and Vibration Suppression Using PD + CPPF Compound Control Strategy
1 Introduction
2 Control Law Design for Flexible Satellite
3 Numerical Analysis and Simulations
4 Conclusions
References
Study and Experiment on the Effect of Fruit Trees’ Volume by Different Travel Direction and LiDAR Installation Height
1 Introduction
2 Materials and Methods
2.1 Information Collection of Orchards
2.2 Hardware Composition of Information Collection Platform
2.3 Hardware Composition of Information Collection Platform
2.4 Test Method
2.5 Point Cloud Processing
2.6 Results Processing
3 Test Results
3.1 Point Cloud Processing Outcomes
3.2 TRE of Partitioned Canopy
4 Analysis and Discussion
5 Conclusion
References
Finite-Time Control for Combination Spacecraft Attitude Based on LESO of Auxiliary System
1 Introduction
2 Problem Description
3 Controller Design
3.1 The Linear Extended State Observer
3.2 The Non-singular Terminal Sliding Mode Controller
4 Simulation
5 Conclusion
References
Distributed Average Tracking for Heterogeneous Multiple UAV Systems with Actuator Faults
1 Introduction
2 Problem Formulation
2.1 Graph Theory
2.2 Preliminaries
2.3 System Dynamic Model
3 Distributed Average Tracking Control Design
4 Simulation Results
5 Conclusion
References
Modeling, Simulation and Control of Electric Fuel Supply Unit
1 Introduction
2 Introduction to Electric Fuel System
2.1 Operating Principle of Electric Fuel System
2.2 Main Fuel Pump
2.3 Drive Motor
2.4 Metering Mechanism
2.5 Demand Analysis
3 Select Component Parameters and Build Simulation Model
3.1 Design of Gear Pump
3.2 Design of Drive Motor
3.3 Model Construction of Metering Device
4 Simulation and Verification of Electric Fuel Supply Unit Model
4.1 Electric Fuel Supply Unit Flow Response Test When Pump Efficiency Drops by 5%
4.2 Electric Fuel Supply Unit Model Full Operating Conditions Flow Response Test
5 Conclusions
References
Intelligent Control Strategy of Wind Curtain Type Anti-drift Sprayer Based on LSSVM Wind Speed Prediction and Fuzzy Control
1 Introduction
2 Problem Statement
2.1 Mathematical Model of Droplet Drift Deposition Distribution
2.2 Depositional Bimodal Ratio and Depositional Heavy Tail Distance
2.3 Wind Screen Position Optimization
3 Intelligent Control Strategy for Anti-drift System
3.1 Ultra-short-term Wind Speed Mean Forecast
3.2 Fuzzy Control Based Air Curtain System
4 Materials and Methods
4.1 Wind Curtain Type Anti-drift Spray System Test Bench
4.2 Wind Screen Anti-drift Spray System Performance Test
5 Results and Analysis
6 Conclusion
References
Spectrally Normalized Adaptive Neural Identifier for Dynamic Modeling and Trajectory Tracking Control of Unmanned Aerial Vehicle
1 Introduction
2 Problem Formulation
3 Spectrally Normalized Adaptive Neural Network
4 Trajectory Tracking Control Based on SNANet
5 Simulation Experiments
5.1 Experimental Setup
5.2 Performance
6 Conclusion
References
Equilibrium and Stability Analysis of Damaged Aircraft Using Attainable Equilibrium Sets
1 Introduction
2 Aircraft Model
2.1 Common Research Model
2.2 Types of Structural Damage
2.3 Equations of Motion
2.4 Attainable Equilibrium Sets Method
3 Computational Results
3.1 Undamaged Aircraft
3.2 Damaged Aircraft with 10% Left-Wing Tip Loss
3.3 Damaged Aircraft with 25% Left Horizontal Tail Tip Loss
3.4 Damaged Aircraft with 25% Vertical Tail Tip Loss
4 Conclusion
References
Autonomous Balance of Wheel-Legged Robot Based on Backstepping Sliding Mode Control
1 Introduction
2 Dynamics Model for Wheel- Legged Robot
3 Design and Stability Analysis of Attitude Controller Based on Backstepping Sliding Mode
3.1 Design of Linear Extended State Observer
3.2 Design of Backstepping Sliding Mode Controller
3.3 Stability Analysis of Attitude Controller
4 Simulations
5 Conclusions
References
Image Classification of Marine Landmarks Based on Evidence Theory
1 Introduction
2 Landmark Definition and Feature Extraction
2.1 Marine Landmarks Definition
2.2 Feature Extraction of Marine Landmarks
2.3 Multi-scale Decomposition of Marine Landmarks
3 Classifier Design Based on Evidence Theory
3.1 Evidence Theory
3.2 Optimal Weighted Fusion of Classifiers
3.3 Classification Algorithm of Marine Landmarks
4 Experiments
5 Conclusions
References
Hypersonic Vehicle Tracking Algorithm Based on Virtual Radar Constructed by Artificial Intelligence
1 Introduction
2 Modeling of Hypersonic Vehicle
3 Measurement Equations
4 Tracking Algorithm
4.1 Virtual Radar Sample Collection
4.2 Construction of Virtual Radar
5 Data Fusion
6 Simulation
7 Conclusion
References
Design of High Angle of Attack Controller Based on Active Disturbance Rejection Control
1 Introduction
2 UAV Nonlinear Model
2.1 Nonlinear Model of UAV
2.2 Actuator and Thrust Vector Model
3 Design of High Angle of Attack Controller Based on ADRC
3.1 ADRC Controller
3.2 Angle of Attack Controller Design
4 Simulation Results
4.1 Simulation Results of State 1
4.2 Simulation Results of State 2
4.3 Simulation Results for Nonlinear Model
5 Conclusion
References
Consensus CIF-Based IMM Filtering for Multiple-UAV Target Tracking
1 Introduction
2 Problem Statement
3 Main Results
3.1 Cubature Information Filter
3.2 Consensus CIF-Based IMM Filter
4 Simulation Results
5 Conclusions
References
Velocity Control of Near Space Vehicle Based on Enhanced Pigeon-Inspired Optimization
1 Introduction
2 Velocity Control with GOPIO
2.1 Velocity Control Model for NSV
2.2 Overview of PIO
2.3 The Enhanced PIO with Golden-Sine Mutation and Opposition-Based Learning
3 Example Analysis
4 Conclusion
References
A Modified Finite-Time Guidance Law with Impact Angle Constraint
1 Introduction
2 Problem Formulation
3 The Design of the Finite-Time IACG Law
4 Numerical Simulations
4.1 Different Desired Values of Impact Angle
4.2 Different Initial Settings
4.3 Relation Between Parameters k, B and Guidance Performance
5 Conclusion
References
Three-Dimensional Cooperative Guidance Law with Time-Varying Velocities
1 Introduction
2 Problem Formulation
3 Dynamic Cooperative Guidance Law
3.1 Remaining Time Estimation
3.2 Superiority Analysis
3.3 Dynamic Cooperative Guidance Strategy
4 Simulation Analysis
5 Conclusions
References
Fuzzy-Model-Based Robust Predictive Control for Path Tracking in Autonomous Driving
1 Introduction
2 Problem Statement
2.1 Lateral Vehicle Model
2.2 Fuzzy Modeling for Vehicle Lateral Dynamics
3 Main Results
3.1 Robust Positively Invariant Set
3.2 Robust Model Predictive Control
4 Simulation Results
5 Conclusion
References
Kinematics Modeling and Analysis for Mobile Manipulator
1 Introduction
2 The Whole-Body Kinematic Modeling of the Mobile Manipulator
3 The Analysis of the Whole Forward Kinematics
4 Conclusion
References
Adaptive Bipartite Consensus of Linear Multi-agent Systems Under Jointly Connected Topologies
1 Introduction
2 Preliminaries
3 Main Results
4 Simulations
5 Conclusion
References
An Innovative Approach to Teach Geography Based on the Hanging Unmanned Aerial Vehicle Device
1 Introduction
1.1 Advantages of Using UAVs in Education
1.2 The Current Situation and Problems of Applying UAV Technology in Education
2 Suspended UAV Debugging Protection Device for Innovative Teaching of Geography Subjects
2.1 Application of UAV Technology in Cartography
2.2 Application and Impact of Suspended UAV Commissioning Protection Device in Innovative Teaching of Geography
3 Research and Experiments on Innovative Classrooms
3.1 Course Background
3.2 Experimental Design
4 Conclusion
References
Multi-view and Multi-target Association Algorithm for Unmanned Aerial Vehicle Clusters Based on Siamese Network
1 Introduction
2 Problem Description
3 Algorithm Design
3.1 Preliminary Association Model Based on Euclidean Distance
3.2 Feature Extraction and Similarity Calculation Model
3.3 Model Training
4 Simulation Result
4.1 Parameter Settings
4.2 Verification Conclusion
5 Conclusion
References
A Fast Yaw Alignment Algorithm of Seaplane Based on LSTM Network
1 Introduction
2 Inertial Frame Self-alignment Algorithm
2.1 Definition of Coordinate Frames
2.2 Update Algorithm of SINS
2.3 Inertial-Frame Self-alignment Algorithm
3 A Fast Yaw Alignment Algorithm Based on LSTM Network
3.1 The Structure of LSTM Network
3.2 A Fast Yaw Alignment Algorithm of Seaplane Based on LSTM Network
4 Self-alignment Simulation
4.1 Inertial Frame Self-alignment Simulation of Airborne SINS on Seaplane
4.2 Fast Yaw Alignment Simulation of Airborne SINS on Seaplane
4.3 Robustness Verification of Fast Yaw Alignment Algorithm
5 Conclusions
References
Development and Future Direction of Unmanned System Based on Inertial Integrated Navigation
1 Introduction
2 Inertial Based Unmanned Navigation
2.1 Inertial and Satellite Integrated Navigation
2.2 Inertial and Radar Integrated Navigation
2.3 Inertial and Visual Integrated Navigation
3 Multi-source Fusion Navigation Algorithm for Unmanned System
3.1 Weighted Fusion Algorithm
3.2 Filtering Fusion Algorithm Based on Bayesian Estimation
3.3 Fusion Algorithm Based on Factor Graph
3.4 Brain-Like Navigation
3.5 Compensatory Navigation
4 Conclusion
References
A Distributed Formation Guidance Law for Lifting Body Vehicle
1 Introduction
2 Problem Statement
2.1 Mathematical Model of LBV
2.2 Control Constraints
2.3 Mathematical Statement of the Formation Guidance Problem
3 Formation Guidance Law
3.1 Lateral Guidance Law
3.2 Longitudinal Plane Guidance Law
4 Simulation
5 Conclusion
References
An Image Enhancement Method Based on Adaptive Gamma Transformation
1 Introduction
2 Improved Adaptive Gamma Transformation Based on HSV Space
2.1 Luminance Extraction Based on HSV Space
2.2 Construction of Adaptive Gamma Transformation
2.3 Image Contrast Enhancement Based on CLAHE
3 Results
4 Summary
References
Parameter Optimization of Dynamic Windows Approach Cost Function Based on Variable Compass Operator PIO
1 Introduction
2 Dynamic Windows Approach
3 Variable Compass Operator PIO
4 Cost Function Optimization with Improved PIO
5 Simulations
5.1 Simulation Conditions
5.2 Simulation Results
5.3 New Environment Validation
6 Conclusion
References
A Novel Multivariate Degradation Data Generation Method Based on Flow Model
1 Introduction
2 Theoretical Knowledge
2.1 Flow Model
2.2 JS-NICE Model
3 Practical Case
3.1 Dataset Introduction and Preprocessing
3.2 Multivariate Degradation Data
4 Conclusion
References
Trajectory Prediction Model of Blended Wing Body Impact Entry Water Based on Deep Belief Network
1 Introduction
2 Dataset Generation
2.1 Characteristic Description of Impacting Entry Water
2.2 Dataset Description
3 Deep Belief Network
3.1 Restricted Boltzmann Machine
3.2 Training of Deep Belief Networks
3.3 Prediction Model Structure and Parameters
4 Model Prediction Ability Verification
5 Conclusion
References
A UWB/IMU Two-Node Position Estimation Method Without Anchor Node
1 Introduction
2 Methods
3 Results and Discussion
3.1 Simulation Experiment Design
3.2 Non-cross Position Estimator Scheme
3.3 Cross Position Estimator Scheme
4 Conclusion
References
Code Recognition of Aircraft Engine Fan Blades Based on Improved LeNet-5
1 Introduction
2 Image Preprocessing of Aircraft Engine Fan Blades
2.1 Leaf Code Collection and Preprocessing
2.2 Code Segmentation and Normalization
3 Improving Character Recognition for LeNet-5 Models
3.1 Introduction to Convolutional Neural Networks
3.2 Character Recognition
4 Matlab Simulation
5 Conclusion
References
Optimal Matching of Multi-satellites Configuration Changes for On-Oribit Service
1 Introduction
2 Optimization Design of Multi-satellites Configuration
3 Fast Path Planning
3.1 Path Planning Model
3.2 Path Planning
4 Task Allocation
4.1 Optimal Model of Auction Algorithm
4.2 Process of Auction Algorithm
5 Experimental Validation and Analysis
5.1 Configuration Optimization Results
5.2 Task Allocation Results
6 Conclusion
References
A Multi-agent Deep Reinforcement Learning Method for UAVs Cooperative Pursuit Problem
1 Introduction
2 Problem Description
2.1 Mission Scenario
2.2 Basic Assumptions
2.3 Evaluation Indicators
3 UAV Collaborative Decision-Making Based on MADDPG Algorithm
3.1 Task Modeling
3.2 MADDPG
3.3 Improvement of MADDPG
4 Simulation Verification and Analysis
4.1 Reward Analysis
4.2 Overestimation Analysis
5 Summary
References
Nonsingular Fast Terminal Sliding-Mode Tracking Control for Hybrid Aerial Underwater Vehicles
1 Introduction
2 Dynamic Model
2.1 Added Mass
2.2 Drag Force and Moment
2.3 Force and Moment of Gravity and Buoyancy
2.4 Control Input Signals
2.5 Design Linear Switching Coefficient
2.6 Equations via Newton–Euler Method
3 HAUV Control Strategy Designing
3.1 Problem Formulation
3.2 Proof of Stability
4 Simulation and Discussion
5 Conclusion
References
Autonomous Navigation Based on Dynamical Substitutes in the Earth-Moon System Under the Full Force Model
1 Introduction
2 Special Triangular Libration Points—Dynamic Substitutes
3 Dynamic Model and Coordinate System
3.1 Dynamic Model of Dynamical Substitutes
3.2 Dynamic Model Describing Autonomous Navigation of Constellations
4 Exploration Mission Description and Observation Model
4.1 Mission Design
4.2 Spacecraft Observation Model
5 Principle of Orbit Determination
6 Numerical Simulation of Constellation Navigation Performance
6.1 Data Generation
6.2 Data Simulation
7 Conclusions
References
A GNN-LSTM-Based Fleet Formation Recognition Algorithm
1 Introduction
2 Problem Formation
2.1 Dataset Generation
2.2 Problem Formation
3 Fleet Formation Recognition Algorithm
3.1 Data Preprocessing
3.2 Neural Network Design Based on GNN-LSTM
4 Experiments and Analysis
4.1 Experimental Set-Up
4.2 Experimental Results and Analysis
5 Conclusion and Future Work
References
UAV Swarm Control Algorithm Based on Soft Attention Mechanism
1 Introduction
2 Interaction Model Based on Soft Attention Mechanism
2.1 Neighbor Set Based on LosFNN Mechanism
2.2 Neighbor Set Model Based on Soft Attention Mechanism
3 UAV Swarm Control Model Based on Virtual Long Machine
3.1 Dynamic Model of Swarm Motion
3.2 Swarm Control Model Based on Virtual Long Machine Mechanism
4 Simulation Verification and Analysis
4.1 Simulation Parameter Setting
4.2 Simulation Scene Settings
4.3 Simulation Results and Analysis
5 Conclusion
References
Vision Based Relative State and Inertia Knowledge Estimation of Un-cooperative Targets
1 Introduction
2 State Model
2.1 Relative Position Dynamics
2.2 Relative Attitude Kinematics
2.3 Relative Rotational Dynamics
3 Observation Model
4 Filter Design
4.1 Linearized the Dynamics Equation
4.2 Linearized Measurement Equation
5 Simulations
6 Conclusion
References
Optimized Selection of Inertial Measurement Unit by Considering Calibration Information and Long-Term Stability
1 Introduction
2 The Proposed Method
2.1 Framework of Optimal Selection
2.2 Accuracy Assessment Based on Two Spatial Dimensions Correlation Coefficient Model
2.3 Long-Term Stability Assessment Based on Mixed Stability Factors
3 Experiments
3.1 Data Information
3.2 Accuracy Assessment
3.3 Long-Term Stability Assessment
3.4 Optimal Selection of IMU
4 Conclusion
References
Research on Autonomous Targeting Algorithm of UAV Ground Attack Based on Bombing Circle and Fuzzy Reinforcement Learning
1 Introduction
2 Generation of Bombing Circle
3 Aiming and Launching Method Based on Bombing Circle
4 Autonomous Aiming Algorithm Based on the Fuzzy Reinforcement Learning
4.1 Fuzzy Q-Learning Algorithm
4.2 Design of Self-learning Algorithm Based on Fuzzy Q-Learning
5 Simulation and Analysis
5.1 Simulation of the Bombing Circle Based Algorithm
5.2 Simulation of the Algorithm Based on Fuzzy Q-Learning
6 Conclusions
References
Research on Environmental Monitoring and Prediction Method of Orchard Frost Based on Wireless Sensor Network
1 Introduction
2 Materials and Methods
2.1 Frost Characteristics of Fruit Trees
2.2 Distribution of Temperature Field Near the Ground in Orchards
2.3 Fruit Tree Canopy Temperature Monitoring
3 Results and Analysis
4 Conclusion
References
Multi-UAV Task Assignment Based on the Improved Discrete Pigeon-Inspired Optimization Algorithm
1 Introduction
2 Multi-UAV Task Assignment Model
2.1 Description of Task Assignment Problem
2.2 Multi-UAV Task Fitness Function Modeling
3 Discrete Pigeon-Inspired Optimization Algorithm Combined with Learning Factors
3.1 Pigeon-Inspired Optimization Algorithm Combined with Learning Factors
3.2 Algorithm Discretization
3.3 Constraint Check Correction Algorithm
4 Simulation
5 Conclusion
References
Event-Trigger-Based Global Sliding Mode Control for a Hypersonic Morphing Vehicle
1 Introduction
2 Hypersonic Morphing Vehicle Model
2.1 Original Model of Hypersonic Morphing Vehicle
2.2 Control-Oriented Model
3 Controller Design
3.1 Preparations
3.2 Controller Design
4 Stability Analysis
5 Simulations
5.1 Simulations for Verifying the Effectiveness of the Global SMC Technique
5.2 Simulations to Interpret the Effectiveness of the Event-Trigger Based Controller
5.3 Control Against the Deflections of Dynamic Parameters
6 Conclusion
References
Fixed-Time Dynamic Surface Control for Hypersonic Morphing Vehicle with Uncertainties Based on Fixed-Time Disturbance Observers
1 Introduction
2 Problem Formulation
3 Design of FDSC-FDO
3.1 Design of FDO
3.2 Design of FDSC
4 Simulation
4.1 Simulation of FDSC-FDO
4.2 Comparison with DSC
4.3 Aerodynamic Coefficients Perturbation
5 Conclusion
References
Author Index