Signal and Information Processing, Networking and Computers: Proceedings of the 8th International Conference on Signal and Information Processing, Networking and Computers (ICSINC)

✍ Scribed by Jiande Sun, Yue Wang, Mengyao Huo, Lexi Xu

• Publisher: Springer
• Year: 2022
• Tongue: English
• Leaves: 1534
• Series: Lecture Notes in Electrical Engineering, 917
• Category: Library

✦ Synopsis

This book collects selected papers from the 8th Conference on Signal and Information Processing, Networking and Computers held in Ji’nan, Shandong, China on September 13-17, 2021. It focuses on the current works of information theory, communication system, computer science, aerospace technologies and big data and other related technologies. Readers from both academia and industry of this field can contribute and find their interests from the book.

✦ Table of Contents

Preface
Organization
Committee Members
International Steering Committee
General Chairs
Technical Program Committee Chairs
Publication Chairs
General Secretaries
Sponsors
Contents
Space Technology I
Averaged Equation of Satellite Relative Motion in an Elliptic Orbit
Abstract
1 Introduction
2 Relative Motions in Two-Body Orbit
2.1 Relative Motion Model and Analytical Equation
2.2 The Averaged Equation of Relative Motion
3 Averaged Equation of Relative Motion with Orbital Perturbation
4 Simulation
4.1 Simulation in Two-Body Orbit
4.2 Simulation Considering the Effect of J2 Perturbation and Atmosphere Perturbation
5 Conclusions
References
HDR Fusion Algorithm Based on PCNN and over Exposure Correction
Abstract
1 Introduction
2 Segmentation of Exposure Region
3 Solution of the Mapping Function
4 The Fusion Algorithm Based on over Exposure Correction
5 Experiment Results
6 Conclusion
References
A Dynamic Range Analysis of Remote Sensor Based on PcModWin
Abstract
1 Introduction
2 An Atmospheric Radiation Transfer Software, PcModWin
3 Radiative Transport Model of Optical Remote Sensor for Earth Observation
3.1 {{{\varvec L}}}{{{\varvec \lambda}}}^{{{\varvec s}}{{\varvec u}}} Direct Reflected Radiation
3.2 {{{\varvec L}}}{{{\varvec \lambda}}}^{{{\varvec s}}{{\varvec d}}} Skylight
3.3 {{{\varvec L}}}{{{\varvec \lambda}}}^{{{\varvec s}}{{\varvec p}}} Haze Light
3.4 Total Solar Radiation {{{\varvec L}}}{{{\varvec \lambda}}}^{{{\varvec S}}} Received by Spatial Optical Remote Sensors
3.5 A Radiation Conversion Model of Optical Remote Sensor
4 Output Radiance Range of Integrating Sphere Light Source Calculated by PcModWin
5 Conclusion
References
The Analog Variable Observation Method for S3MPR Controller
Abstract
1 Introduction
2 The S3MPR Power Topology
3 The Variable Observation Method
4 Circuit Design for the MPPT Controller
4.1 The Analog Power Sampling Circuit
4.2 The Variable Comparator and the Reference Generator
5 Simulation Analysis
6 Conclusions
References
Analysis and Design of Aerospace Flight Control Knowledge Base
Abstract
1 Introduction
2 Aerospace Flight Control Knowledge Representation
2.1 Knowledge Representation
2.2 Knowledge Base Level
3 Standardization of Aerospace Flight Control Knowledge
4 Construction of Aerospace Flight Control Knowledge Base
4.1 Aerospace Flight Control Knowledge Construction Process
4.2 Aerospace Flight Control Knowledge Base Management
4.3 Analysis of Typical Examples of Aerospace Flight Control Knowledge Base
5 Conclusion
References
Study on Planning Strategy of TT&C Resource Scheduling Based on Data Mining
Abstract
1 Introduction
2 Type of Resource Scheduling Data
2.1 Input Data
2.2 Output Data
3 Requirements Planning of Resource
4 Planning Strategy and Implementation
4.1 Periodical Resource Requirements Forecasting
4.2 Dynamic Activation and Recovery of Peak Resources
5 Verification and Summary
5.1 Periodical Resource Requirements Forecasting
5.2 Dynamic Activation and Recovery of Peak Resources
6 Conclusion
References
Research on Product Assurance Parallel Work of Spacecraft Control System
Abstract
1 Introduction
2 Research on Spacecraft Control System Product Assurance
3 Product Assurance Work Evaluation of Spacecraft Control System Developed in Parallel
4 Conclusion
References
Research on Inter-satellite Ranging Technology Based on Proximity-1 Protocol
Abstract
1 Introduction
2 Inter-satellite Ranging Principle Based on the Proximity-1 Protocol
2.1 Short Range Link Time Service
2.1.1 Time Capture Method
2.1.2 Definition of Ranging Transmission Frame Format
2.2 Principle of Incoherent Bidirectional Ranging and Time Synchronization
2.3 Error Analysis
3 Experimental Verification
3.1 Design and Composition of Ground Experiment
3.2 Experimental Results and Analysis
4 Conclusion
References
SpaceWire Network Configuration Method Based on Digraph
Abstract
1 Introduction
2 Configuration Protocol
2.1 Path Addressing and Logical Addressing
2.2 Network Configuration Method and Protocol Involved
3 Configuration Method Based on Digraph
4 Implementation
5 Conclusion
References
LDPC Encoding and Decoding Algorithm of LEO Satellite Communication Based on Big Data
Abstract
1 Introduction
2 Method
2.1 Concept of Big Data
2.2 LDPC Encoding and Decoding Algorithm for LEO Satellite Communication
3 Experience
3.1 Extraction of Experimental Objects
3.2 Experimental Analysis
4 Discussion
4.1 The Influence of Iterations on the Performance of LDPC Codes
4.2 Theoretical Analysis on the Performance of Mobile Satellite Communication Network Edge Computing Architecture
5 Conclusion
References
LDPC Coding and Decoding Algorithm of Satellite Communication in High Dynamic Environment
Abstract
1 Introduction
2 Method
2.1 High Dynamic Environment
2.2 LDPC Coding and Decoding Algorithm for Satellite Communication
2.3 Spread Spectrum Technology
3 Experience
3.1 Extraction of Experimental Objects
3.2 Experimental Analysis
4 Discussion
4.1 Tracking Performance of Second Order DPLL
4.2 Resource Cost Comparison of Multi Rate LDPC Encoder
5 Conclusion
References
Analysis of Optimal Orbital Capture Maneuver Strategy to LEO Spacecraft Based on Space Debris Collision
Abstract
1 Introduction
2 Constrained Conditions in Engineering
3 Calculation Model
3.1 Velocity Impulse and Relative Trace Drift Model
3.2 The Closest Distance and the Closest Approach Moment
4 Initial Orbit Capture Maneuver Strategy Planning Process
5 Simulation and Result
5.1 Simulation Parameter Setting
5.2 Safety Analysis of Intra Group Collision Before Orbital Maneuver
5.3 Orbital Maneuver Sequence Planning
5.3.1 Collision Avoidance Analysis of First Maneuver Based on Error Estimation
5.3.2 Orbital Capture Maneuver Strategy
6 Summary
References
Research on a Centralized Thrust Deployment Method for Space Satellite Swarms
Abstract
1 Introduction
2 Design of Swarm Structure Assembly
3 Mother Satellite Initialization Based on Three-Axial-Stabilization
4 Establish the Space Geometric Construction of Swarm
5 Satellite Swarm Communication Strategy
6 Conclusion
References
Research on Navigation and Communication Fusion Technology Based on Integrated PNT System
Abstract
1 Introduction
2 Current Status at Home and Abroad
2.1 International Status
2.2 Domestic Current Situation
3 Navigation and Communication Integration Architecture
3.1 Navigation and Communication Information Fusion
3.2 Navigation and Communication Signal Fusion
4 Application Prospects
5 Conclusion
References
A Solar Array on Orbit Output Power Prediction Method for Satellite
Abstract
1 Introduction
2 Satellite Orbit and Solar Array Light Incidence Analysis
2.1 Orbit Analysis
2.2 Solar Arrays Light Incidence Analysis
3 Satellite Solar Array Output Power Prediction
3.1 Solar Cell Electric Generate Theory and Model
3.2 Solar Array on Orbit Output Power Predict
4 Conclusion
Acknowledgement
References
Conception and Prospects of Exploration and Mining Robots on Lunar Base
Abstract
1 Introduction
2 Research Status at Home and Abroad
2.1 United States
2.2 Russia
2.3 Europe
2.4 China
2.5 Summary
3 Conception of the Lunar Base Exploration and Mining Robot
3.1 Engineering Goals
3.2 Conceptual Assumptions
3.3 Key Technologies and Suggestions
4 Conclusion
References
Analysis of Orbit Determination Accuracy of GEO Satellite Navigation Data
Abstract
1 Introduction
2 Orbit Determination of GEO Satellite Navigation Signal
2.1 Weighted Least Square Method with Additional Constraints
2.2 Solving Effect
3 Orbit Determination of Heterogeneous Data Fusion Based on Space and Ground-Based Observation
4 Summary
References
Variable Bandwidth Digital Channelization Algorithm and Engineering Realization
Abstract
1 Introduction
2 Fundamental
2.1 Digital Channelization Synthesis and Efficient Implementation Structure
2.2 Digital Channelization Decomposition and Efficient Implementation Structure
3 Variable Bandwidth Digital Channelization
References
A Design Framework for Complex Spacecraft Systems with Integrated Reliability Using MBSE Methodology
Abstract
1 Introduction
2 Literature Review
3 Concrete Framework
3.1 Construction of SysML Profile
3.2 Model-Based FMEA
3.3 Model-Based FTA
4 Case Study
5 Conclusion
References
Intelligent Task Management of Infrared Remote Sensing Satellites Based on Onboard Processing Feedback
Abstract
1 Introduction
2 Requirements and Constraints of Remote Sensing Satellite Mission Management
3 Intelligent Task Management of Infrared Remote Sensing Satellites Based on Onboard Processing Feedback
3.1 Intelligent Task Management Solution
3.2 Key Technologies of Intelligent Task Management
4 Application and Development
5 Conclusion
References
Fragmentation Technology of Spacecraft TT&C Resources Under Multi-constraint Condition
Abstract
1 Introduction
2 Analysis of Current TT&C Equipment Allocation
3 Design of TT&C Strategy for Multi-constraint Fragmentation Assembly
4 Simulation Test
5 Conclusion
References
Key Technology Research and On-Orbit Verification of Beidou Short Message Communication System of LEO Satellite
Abstract
1 Introduction
2 Task Requirement Analysis
2.1 On-Board Intelligent Processing and Broadcast Distribution Requirements
2.2 Satellite Measurement and Control Requirements
2.3 Requirements for Multi-satellite Collaboration Missions to Key Targets
3 Key Technology Analysis and Design
3.1 High-Precision Doppler Compensation Technology
3.2 Analysis of Time Slot Allocation and Message Communication Delay
4 On-Orbit Verification
4.1 Verification of the Forecasting Technology of the Selected Chain Satellite
4.2 Coverage Detection of Global Short Message Communication Signal
5 Conclusion
References
Summary of Artificial Neural Network Effectiveness Evaluation Technology
Abstract
1 Effectiveness Evaluation
2 Artificial Neural Network
3 Artificial Neural Network Apply to Effectiveness Evaluation
4 The Pros and Cons of BP Neural Network Effectiveness Evaluation
5 Research Direction of Artificial Neural Network Effectiveness Evaluation
References
Experiment Study on the Impact Limit of Basalt/Aramid Stuffed Whipple Shields
Abstract
1 Introduction
2 Whipple Shields Stuffed with Basalt/aramid and Impact Test
2.1 Protective Mechanism for Stuffed Whipple Shields
2.2 Ultrahigh Velocity Impact Test
2.3 Damage Characteristic Analysis of the Shield
3 Research on Impact Limit Equation and Parameters
3.1 NASA Nextel/Kevlar Stuffed Whipple Shields Equations
3.2 Parameter Modification of Impact Limit Equation
3.3 Impact Limit Velocity Threshold Correction
4 Conclusion
References
Application of Software Remote Synchronization Mode in Aerospace Products
Abstract
1 Introduction
2 Related Work
2.1 ESB
2.2 JMS
2.3 XML
3 Software Remote Synchronization Model
3.1 Interactive Mode of Heterogeneous Database
3.2 Heterogeneous Multi Subsystem Data Interaction Model
3.3 Remote Data Synchronization Mechanism
3.3.1 Real-time Synchronization Mechanism
3.3.2 Timing Synchronization Mechanism
3.3.3 Hybrid Synchronization Mechanism
3.4 Selection of Data Synchronization Mechanism
4 The Next Step of Research
References
Pointing Precision Modification Method for the Low Orbit Satellite in Ka-Band by the Triaxial Antenna
Abstract
1 Introduction
2 Analysis of Traditional Antenna Pointing Errors
3 Analysis of Pointing Error Model of the Rotary Antenna
3.1 The Triaxial Antenna Structure
3.2 Error Item of Triaxial Antenna for Oblique Turntable
4 Pointing Correction Method for the Triaxial Antenna of Oblique Turbine
4.1 Pointing Correction Model of the Triaxial Antenna Oblique Turbine
4.2 Point Correction Algorithm for the Triaxial Antenna of Oblique Turbine
5 Engineering Test Verification
5.1 Test Steps
5.2 Test Results
6 Conclusion
References
Theoretical Analysis and Experimental Study on Oxidant Depletion Cutoff Method of Satellite Dual Mode Propulsion System
Abstract
1 Introduction
2 Oxidant Depletion Cutoff Design
2.1 Composition of a Satellite Dual-Mode Propulsion System
2.2 Oxidant Depletion Cutoff Strategy
2.3 Theoretical Analysis of Oxidant Depletion Criterion
3 Oxidant Depletion Cutoff Test
3.1 Test System
3.2 Manual Cutoff Test
3.3 Oxidant Depletion Cutoff Test
4 Conclusion
References
Parameter Optimization Design and Application Analysis of Water-Based Propulsion System
Abstract
1 Introduction
2 Configuration of Water-Based Propulsion System
3 Calculation Model
3.1 Mission Background
3.2 Optimization Model
4 Parameter Matching Design and Application Research
4.1 Parameter Matching Design for Common Working Conditions
4.2 Research on the Relationship Between Parameters
5 Conclusions
References
A New Tracking Measurement Method Based on QPSK Spread Spectrum Communication Signal
Abstract
1 Introduction
2 A New Tracking Measurement Method
3 Conclusions
References
Design and Application of OBDH Subsystem for Gaofen-4 Satellite
Abstract
1 Introduction
2 Overview
3 Technical Features
3.1 Different Working Modes
3.2 CCSDS Telemetry Format
3.3 Telemetry Processing Based on Layer Architecture
3.4 Second Pulse Design
3.5 Autonomous Management Function
3.6 Autonomous Layout of Load Mission Design
4 Technical Innovation Points
5 On-Orbit Application
References
Autonomous Mission Planning Software Design and Testing of the Agile Earth Observation Satellite
Abstract
1 Introduction
2 Software Requirement Analysis
2.1 User Requirement Analysis
2.2 Software Running Environment Analysis
3 Software Design
3.1 The Operating System and Underlying Hardware Layer
3.2 The Target Task Abstraction Layer
3.3 The Core Service Layer
3.4 The Application Layer
3.5 Reliability Design
4 Software Test and Verification
5 Summary
References
Research for Non-cooperative Space Objects Detection Methods Based on Image
Abstract
1 Introduction
2 Classical Object Detection Methods
2.1 Methods Based on Kinematic Characteristics
2.2 Methods Based on Morphological Characteristics
3 Improvement and Development of Object Detection Methods
3.1 Improvement
3.2 Development
4 Conclusion
References
Research on a BSDiff-Based System-Level On-Orbit Maintenance Technology of Spacecraft
Abstract
1 First Section
2 Differences Algorithm
2.1 BSDiff
2.2 BSPatch
3 System-Level Incremental On-Orbit Maintenance
3.1 Create Telecommands
3.2 Preprocessing on the Spacecraft
3.3 System Reconstruction
4 Simulations
5 Conclusions
References
Research on the Risk Identification Index System of Software Project
Abstract
1 Overview of Software Project Risk Management
2 Current Research Status of Software Project Risk Management at Home and Abroad
3 Construction of Risk Identification Index System for Software Projects
3.1 Determine the Main Risk Factors of the Software Project
3.2 Determine the Risk Decomposition Level of the Software Project
3.3 Determine the Risk Driving Factor of the Software Project
3.4 Establish a Software Project Risk Identification System
References
Research on Time-Frequency Location Algorithm of Launch Vehicle Vibration Data
Abstract
1 Introduction
2 Fundamental
3 Rocket Vibration Time-Frequency Positioning Algorithm
4 Time-Frequency Positioning Simulation
5 Examples of Time-Frequency Positioning of Rocket Vibration Data
6 Conclusion
References
Study on Disturbing Moment Compensation for the Satellite with Large-Scale Rotating Antennas
Abstract
1 Introduction
2 Angular Momentum Estimation of Antenna Rotation
3 Feedforward Compensation Method of Antenna Rotation Angular Momentum
3.1 Interference Torque Compensation When Antenna Fly-Back
3.2 Interference Torque Compensation of Antenna in Fly-Back Position
3.3 Simulation Verification
4 Conclusion
References
Electromagnetic Interference Posed by Wireless Devices Inside Airproof Cabin of Manned Spacecraft
Abstract
1 Introduction
2 Physical Modeling of Electromagnetic Compatibility Analysis for Typical Manned Spacecraft
2.1 Analysis Method
2.2 Establishment of Simulation Model
3 Simulation Analysis and Research
3.1 Coverage Analysis of Radiation Field in Capsule
3.2 Interference Coupling Analysis Between Radiation Field and RF Equipment in the Capsule
4 Conclusion
References
Security Enhancement for Noise Aggregation in DVB-S2 Systems
Abstract
1 Introduction
2 Security and Architecture of DVB-s2
2.1 Security Requirements and Status
2.2 Physical Layer Architecture
3 Theory and Simulation of Noise Aggregation Coding
3.1 Theory of Coding
3.2 Simulation
4 Applying Noise Aggregation to DVB-S2
4.1 System Analysis and Parameter Design
4.2 Simulation
5 Conclusion
References
A Pipelined Arithmetic Architecture for the Motion Planning of Multi-DOF Manipulator
Abstract
1 Introduction
2 Basic Algorithm
3 Hardware Architecture
3.1 Float-Point Uint
3.2 CORDIC Uint
4 Simulation and Verification
5 Conclusion
References
Information Hiding in Space Data Link Protocols Based on Spare Value of Fields in Frame Header
Abstract
1 Introduction
2 Related Works
3 Method
3.1 Method Statement
3.2 Implementation Example
4 Analysis
4.1 Transparency
4.2 Robustness
4.3 Hidden Information Percentage
5 Conclusion
References
Space Technology II
Optimal Escape Strategy with a Single Impulse in Space Attack-Defense
Abstract
1 Introduction
2 Problem Description and Hypotheses
3 The Establishment of Calculation Model
3.1 Coordinate Frames Definition
3.2 Calculation Model
4 Simulation Verification
4.1 Global Search for the Optimal Impulse Direction
4.2 Different Magnitude of Impulse Vector and Different Flight Times
4.3 Analysis of the Impulse Application at Different Positions Along the Orbit
5 Conclusion
Foundation Item
References
A Method of Using Control Chart to Monitor Software Key Performance Evolution
Abstract
1 Introduction
2 Statistical Steady State Analysis of Evolution
2.1 Definition and Principle of Control Chart
2.2 The Monitoring Requirements of Software Performance Evolution
2.3 Statistical Steady State Analysis of the First Sampling
2.4 Statistical Steady State Analysis of the Second Sampling
3 Technical Steady-State Analysis of Evolution
3.1 Analysis of Sample Data Distribution
3.2 Comprehensive Judgment of Process Capability and Process Performance
3.3 Analysis of System Reliability Index
4 Reproducibility Analysis
4.1 The Concept of Reproducibility
4.2 Reproducibility Calculation
5 Summary
References
Accurate Pointing Control Algorithm for Space Based Movable Antenna Tracking Ground Station Using GPS
Abstract
1 Introduction
2 Model
3 Design of Algorithm
3.1 Calculate the Relative Position Vector on WGS84
3.2 WGS84 to J2000
3.3 J2000 to Orbital Coordinate System
3.4 Calculate Antenna Angles
4 Test Results
5 Conclusion
References
Telemetry Data Prediction Method Based on Time Series Decomposition
Abstract
1 Introduction
2 Theory Foundation
2.1 HP Filtering
2.2 Seasonal ARIMA Model
3 Modeling Method
4 Empirical Analysis
4.1 Trend Term Prediction
4.2 Fluctuation Term Prediction
4.3 Combination Prediction and Reliability Verification
5 Conclusion
References
A Query Optimization Method for Real-Time Embedded Database Based on Minimum Arborescence
Abstract
1 Introduction
2 Structure of Query Processing
3 Query Optimization Sequence Based on Directed Graph Structure
3.1 Representation of Multi-table Dependencies in a Join Query
3.2 Constructing Multi-table Dependencies Based on Directed Graphs
3.3 Storage and Calculation of Directed Graph Weights
4 SQLite Query Optimization Algorithm Based on Minimum Arborescence
5 Experiment and Analysis
6 Conclusion
References
Design of Reconfigurable Test System for Information Interface Between Space Station Combination with Multi-aircraft
Abstract
1 Introduction
2 System Framework
3 Hardware Composition
4 Software Design
4.1 Physical Channel Selection Module
4.2 Instrument Configuration Module
4.3 Instrument Trigger Setting Module
4.4 Data Analysis Module
4.5 Main Software Design
5 System Verification
6 Conclusion
References
A Dual Model Control of Sensorless High Frequency Permanent Magnet Synchronous Motor Based on the Space Vector Pulse Width Modulation and Six-Step Mode
Abstract
1 Introduction
2 Mathematical Model of High Frequency Permanent Magnet Synchronous Motor and Drive System
2.1 Mathematical Model of High Frequency Permanent Magnet Synchronous Motor
2.2 Sinusoidal-Wave Drive System Based on Vector Control Algorithm
2.3 Square-wave Drive System Based on Six-Step Mode
3 Back Electromotive Force Zero Crossing Point Detection and Phase Shift Compensation
4 Simulation and Analysis
4.1 Simulation Setup
4.2 Simulation Results
5 Summary
References
Development Mode of Remote Sensing Satellite OBDH Software Based on Prototype Software
Abstract
1 Introduction
2 Analysis of Traditional Development Mode
2.1 Waterfall Model
2.2 Software Components
3 Development Mode Based on Prototype Software
3.1 Define of Prototype Software
3.2 Development Mode
3.3 Restrictions
4 Satellite Implementation and Analysis
4.1 Satellite Implementation
4.2 Workload Analysis
5 Conclusion
References
Design of Closed-Loop Tracking Mode for Remote Sensing Satellite Data Transmission Antenna
Abstract
1 Introduction
2 Closed-Loop Tracking Scheme Design
2.1 Typical Data Transmission Mode
2.2 System Composition
2.3 Control Process
3 Ground Test Verification
4 Conclusion
References
High Accuracy Orbit Control Strategy of Change’4-Relay Satellite
Abstract
1 Introduction
2 Track Control Task Design
3 High-Precision Track Control Strategy
3.1 Thruster Installation Layout Optimization
3.2 Control Cycle Sampling and Quantization Error Suppression
3.3 Thruster Aftereffect Suppression
3.4 Accelerometer Zero Deviation Suppression
3.5 Summary
4 On-Orbit Control Results
5 Conclusion
References
Observation Data Quality Evaluation of GPS Receiver on Agile Platform Based on Ground Simulation
Abstract
1 Background
2 Simulations
3 Simulation Data Quality Evaluation
3.1 Pseudo Range Observation Accuracy
3.2 Carrier Phase Accuracy
3.3 Simulation Orbit Determination Analysis
4 Conclusions
References
A Station Guidance Method Based on Combination Deviation Spacecraft Orbit Prediction
Abstract
1 Introduction
2 A Station Guidance Method Based on Combination Deviation Orbit Prediction
2.1 Deviation Orbit Prediction
2.2 Deviation Orbit Prediction
2.2.1 Computational Theory Guide Waiting Point
2.2.2 Calculate the Guidance Data of the Deviation Ephemeris
3 Calculation Results and Analysis
4 Conclusion
References
A Distributed Real-Time Orbit Determination Algorithm Based on Asynchronous Multi-sensor
Abstract
1 Introduction
2 Real-Time Orbit Determination Problem Formulation
2.1 Models
2.2 Distributed Sensor Network
2.3 Asynchronous Sampling System
3 Asynchronous Distributed Real-Time Filtering
3.1 Information Transmitted in the Sensor Network
3.2 Distributed Fusion Filtering
3.3 Distributed Smoothing
4 Actual Data Verification
5 Conclusion
References
An Equivalent Calculation Method of VLBI Instantaneous Time Delay Rate
Abstract
1 Introduction
2 Instantaneous Time Delay Rate Model
3 Equivalent Calculation Method of Instantaneous Time Delay Rate
3.1 Average Time Delay Rate Model
3.2 Parameter Selection of Equivalent Model
4 Actual Data Verification
5 Conclusion
References
Design and Research of Satellite Fault Real-Time Simulation and Verification Platform Based on FMI Standard Model
Abstract
1 Introduction
2 Platform Scheme Design
3 System Implementation
3.1 Design of Satellite Simulator Based on FMI Standard Model
3.2 Design of Fault Generator Based on FMI Standard Model
3.3 Design of Automatic Fault Manager Based on FMEA
3.4 Design of Platform Manager
4 Application and Verification
4.1 Platform Workflow
4.2 Typical Application Cases
4.3 Results of Analysis
5 Conclusion
References
A Method for Calculating Solar Pressure of TDRS with a Movable IOLA
Abstract
1 Foreword
2 Modeling of Solar Pressure
2.1 Discretization of Satellite Model
2.2 Calculation of the IOLA Tracking User Satellite Rotation
2.3 Calculation of Occlusion Relationship for Satellite Components
2.4 Calculation of Solar Pressure of the Whole Satellite
3 Simulation Example
4 Conclusion
References
Research on Platform Construction of Small Satellite GNC System
Abstract
1 Introduction
2 Current Status of Domestic Small Satellite Development
3 Platform Design and Development of Control System
3.1 Platform-Based Architecture Design
3.2 Improvement of Development Technical Process
3.3 Practice of Platform Application
4 Conclusion
References
The Storage Optimization of Test Cases and Test Results in Spacecraft Automatic Test Based on JSON
Abstract
1 Introduction
2 JSON Technology
3 NoSQL Technology
4 Storage Model Design
4.1 Storage Scheme Design of Traditional Relational Database
4.2 Design of Storage Scheme Based on JSON
4.2.1 Design of Test Case Storage Structure
4.2.2 Design of Test Result Storage Structure
5 Storage Model Validation
6 Conclusion
References
Research on the Modeling and Application of Intelligent Factory Facing the Complex Space Optical System
Abstract
1 Introduction
2 Problem Statement
2.1 State of the Art
2.2 Requirement Analysis
3 Intelligent Factory Modeling
3.1 Model Framework
3.2 Business Hierarchy Dimension
3.3 Development Lifecycle Dimension
4 Intelligent Factory Model Application
4.1 Information Integration Application
4.2 Product DT Model Application
5 Conclusion
References
A New Space-Based Optical Surveillance System
Abstract
1 Introduction
2 Feature of Space Visual-Monitor System
3 Visual-Monitor System Scheme
3.1 Camera Selection and Configuration
3.2 Camera Data Transmission Scheme
3.3 Camera Image Processing and Transmitting Scheme
3.4 System Work Flow
4 Visual-Monitor System Key Technology
4.1 Motion Image Detection and Recognition Technology
4.2 Motion Image Detection and Recognition Technology
5 Conclusion
References
The Application of MPLS VPN in Improving the Reliability of Test Network
Abstract
1 Introduction
2 MPLS VPN Technology
3 Application of MPLS VPN Technology in Test Network
4 Verification of Configuration Results
5 Conclusion
References
Performance Analysis of the Photon-Counting LIDAR Based on the Statistical Property
Abstract
1 Introduction
2 Theoretical Analysis
3 Data Validation
3.1 Photon Number of Signal and Background Noise
3.2 Photon Number of Signal and Background Noise
4 Conclusion
References
A Space Vector Transformation Based Dynamic Image Rotation Compensation Model
Abstract
1 Introduction
2 Vector Optical Transmission Model
3 Dynamic Image Rotation Compensation Model
4 Discussion
4.1 Paraxial Incidence
4.2 Large Angle Incidence
4.3 Incident in Different Coarse Pointing Mechanism Attitudes
5 Conclusion
References
Research on Segmented Weighted Multi-vector Attitude Determination Method Based on On-Orbit Accuracy of Star Sensors
Abstract
1 Introduction
2 Multi-vector Attitude Determination Method
3 Selection of Weighted Coefficients
4 Simulation
4.1 Simulation Example I
4.2 Simulation Example II
5 Conclusion
References
The Research of Micro-vibration Nonlinear Characteristic Produced by Spacecraft Mechanical Momentum Wheel
Abstract
1 Introduction
2 Mechanism of Nonlinear Micro Vibration
2.1 Amplitude Nonlinearity
2.2 Frequency Nonlinearity
3 Dynamic Model
4 Micro-vibration Control Method
5 Conclusion
References
Design of On-Orbit Monitoring Method for Small Satellite Payload Equipment Based on Grey Prediction
Abstract
1 Introduction
2 Analysis of Conventional Monitoring Methods of Payload Equipment
3 On-Orbit Monitoring Method of Payload Equipment with Grey Prediction
3.1 Grey Prediction
3.2 Self-adjustment Function
4 Test Results
5 Conclusion
References
Investigation on EMC Design of Spacecraft Under High-Power Microwave
Abstract
1 Introduction
2 HPM Effects on Spacecraft Through Front-Door Coupling and the Mitigation Suggestion
3 The Simulation of HPM Effects Through Back-Door Coupling and the Mitigation Suggestion
4 Conclusion and Future Works
References
Ground Experimental Verification of High-Stability Temperature Control System and Flight Data Analysis
Abstract
1 Foreword
2 High-Stability Temperature Control System Design
2.1 Multiple Level Thermal Insulation Design
2.2 Active Temperature Control System Design
3 Ground Experimental Verification of High-Stability Temperature Control System
3.1 Temperature Measurement PCB Assembling Standard Resistance Verification
3.2 Temperature Measurement PCB Assembling 4-Wire RTD Calibration
3.3 Ground Experimental Verification of High-Stability Temperature Control System
4 Flight Data Analysis
5 Summary
References
Experimental Verification of Discharge of Two Parallel Sets of Batteries in Mars Probe During EDL
Abstract
1 Introduction
2 Tasks and Power Supply Mode During EDL Stage
3 Parallel Discharge Experimental Verification of Two Sets of Batteries
3.1 Experimental Design
3.2 Experimental Verification
4 Conclusion
Acknowledgement
References
Reliability Design and Experimental Verification of Impact Sensor Signal Cable
Abstract
1 Introduction
2 The Design of the PCB Transfer Unit
2.1 The PCB Layout
2.2 The Shell Design
2.3 The Shielding Design
2.4 The Insulation Design
3 The Experimental Verification
3.1 The Mechanical Environment Experiments
3.2 The Thermal Environment Experiments
3.3 The Tensile Experiment
3.4 The Metallographic Experiment
4 Conclusions
References
Simulation and Analysis of Influence of Group Delay Distortion on Satellite-to-Ground and Satellite-to-Satellite Link Channel
Abstract
1 Introduction
2 Introduction of Group Delay and All Pass Filter
2.1 Group Delay
2.2 Allpass Filter
3 The Influence of Group Delay on Modulation Performance Simulation
3.1 Simulation of the Influence of Group Delay on Transmitted Signal
3.2 The Influence of Group Delay Analysis Based on the Whole Link
3.3 Analysis of Simulation Results
4 Conclusion
References
The Influence of Ka Band Satellite Transponder Nonlinearity on High-Speed Data Communication
Abstract
1 Introduction
2 Ka Band Transponder System
3 Nonlinear Characteristics of Ka Band Traveling Wave Tube Amplifiers
4 Test the Influence of Ka Frequency Transponder Nonlinearity on High-Speed Data Transmission
4.1 Test Plan
4.2 Test Results
5 Conclusion
References
GPS and Laser Altimeter Data Alignment for Snow Roughness Measurement in Antarctic
Abstract
1 Background Introduction
2 The Measurement System
2.1 The Measurement System Configuration
2.2 The Data and Format
2.3 The Field Around Concordia
2.4 GPS Data Process
3 Data Preparation and Alignment
3.1 Data Process Procedure
3.2 Data Validation
3.3 Basic Technique for Data Processing
4 Conclusion
References
Angles-Only Onboard Initial Relative Orbit Determination with Auxiliary Satellite
Abstract
1 Introduction
2 Relative Motion Dynamics and Measurement Models of Auxiliary Satellite
2.1 Relative Dynamics of Motion
2.2 Measurement Model of Auxiliary Satellite
3 IROD Algorithm Based on State Augmentation Least Square Method
4 Simulation Case Studies
4.1 Simulation Model and Parameters Setting
4.2 Convergence Analysis of State Estimation
5 Conclusions
Acknowledgement
References
Space-ROS: A Novel Real-Time Operating System Architecture and Implementation for Space Robot
Abstract
1 Introduction
2 Design and Implementation
2.1 Architecture
2.2 Dynamic Loading
2.3 Three-Level Scheduling Strategy
3 Evaluation
4 Conclusions
References
The Conception of the Construction of Remote Sensing Satellites Information Quality Evaluation Test Field
Abstract
1 Introduction
2 Demand Analysis of the Construction Remote Sensing Satellites Test Field
3 Evaluation Principles of Remote Sensing Satellites Information Quality
4 The Preliminary Construction Idea of Remote Sensing Satellites Test Field
5 Conclusion
References
Design and Optimization of Permanent Magnet Brushless DC Motor Control System for Flywheel
Abstract
1 Introduction
2 Working Principle and Mathematical Model of Permanent Magnet Brushless Direct Current Motor for Flywheel
3 The Composition and Working Principle of the Motor Speed Control System
4 Control Algorithm of Permanent Magnet Brushless DC Motor for Flywheel
5 Experimental Verification
6 Conclusion
References
On-orbit Research and Validation on the Lifetime Capability of Propulsion System
Abstract
1 Foreword
2 Catalytic Decomposition Test Method
2.1 Test Method
2.2 Research on Catalytic Decomposition Rate in Orbit
3 In-flight Validation
3.1 Mission Design
3.2 In-flight Catalytic Decomposition Validation
3.3 Propulsion System In-flight Test
4 Conclusions
References
Observer-Based Variable Structure Control for Spacecraft with Actuator Failure
Abstract
1 Introduction
2 Attitude Model and Control Problem Formulation
3 Observer-Based Variable Structure Controller Design
3.1 Design Fault Estimation Observer
3.2 Observer-Based Control Law Derivation
4 Numerical Simulation
4.1 Normal Mode
4.2 Failure Mode
5 Conclusion
References
Research on the Method of Satellite Energy Real-Time Dispatching
Abstract
1 Introduction
2 Disadvantages of Traditional Energy Balance Budgeting Method
3 Satellite Energy Real-Time Dispatching Method
3.1 Design Ideas
3.2 Calculation Method
4 Conclusion
References
System Error Registration Method of Bearings-Only Passive Location System for Surface Ships
Abstract
1 Introduction
2 Dynamic Models
3 Genetic Algorithm
4 Simulation Analyses
5 Conclusions
Acknowledgement
References
Research on Passive Location of Maneuvering Target Based on IMM-SRCKF Algorithm
Abstract
1 Introduction
2 Mathematical Model
2.1 Target Motion Model
2.2 Measurement Model
2.3 Augmented Model
3 Imm-SRCKF
4 Simulation Analyses
5 Conclusions
Acknowledgement
References
A Standard Driver Design of Onboard Control Computer
Abstract
1 Introduction
2 Standard Driver Design
2.1 A6017 Introduction
2.2 Standardization of Underlying Program
2.3 Anti-SEU Design
2.4 Configurable Design
2.5 Standardization of User Interface
3 Experiment
3.1 Functional Test
3.2 Anti-SEU Test
3.3 Configuration Test
4 Conclusion
References
Optimal Multiple-Impulse Noncoplanar Rendezvous Trajectory Planning Considering the J2 Perturbation Effects
Abstract
1 Introduction
2 J2 Perturbed Multi-Impulse Orbit Maneuver Problem
3 The J2 Perturbed Lambert Problem
4 Lambert-Based Multi-Impulse Orbit Planning Model
5 Simulation example
5.1 Multi-impulse coplanar rendezvous
5.2 Multi-impulse Noncoplanar Rendezvous
6 Conclusion
References
PIC-MCC Simulation of the Temporal Characteristics of the Plasma in a Hall Thruster
Abstract
1 Introduction
2 Calculation Model
3 Numerical Method
4 Results and Discussion
4.1 Plasma Number Density
4.2 Plasma Velocity
4.3 Plasma Potential and Axial Electric field
4.4 Channel Erosion
5 Conclusions
References
Research on Automatic Measurement of Aerospace Electrical Connector Wire
Abstract
1 Research Background
2 Principle and Design of Automatic Signal Measurement
2.1 Fifteen Level 74ls148 and NAND Gate Constitute 128–7 Line Priority Encoder
2.2 Design of Minimum System for Single Chip Microcomputer
2.3 128 Wire Number Extended 256 Wire Number
2.4 Programming of Measurement Number
2.5 Design of Communication with Printer
2.6 Test Box Design
3 Conclusion
References
Correctness Verification of Aerospace Software Program Based on Hoare Logic
Abstract
1 Introduction
2 Rules of Program Verification Based on Hoare Logic
3 Verification of Program by Theorem Proving
4 Conclusion
References
Research on Image Restoration in Remote Sensing Quick-View System
Abstract
1 Introduction
2 Image Degradation and Restoration Principle
3 Wiener Filter Optimization and Parameter Estimation
3.1 Wiener Filter Method
3.2 Degradation Scale Estimating
3.3 Power Spectrum Ratio Estimating
3.4 Restrain of Ringing Artifact
4 Experiments and Analysis
4.1 Simulations Verification
4.2 Experimental Verification
4.3 Result Analysis
5 Conclusions
References
An Image Denoising Algorithm Combining Global Clustering and Low-Rank Theory
Abstract
1 Related Work
1.1 Spectral Clustering Algorithm
1.2 Clustering of Similar Image Blocks Based on LSC Spectral Clustering Algorithm
2 Gaussian Noise Filtering Model Based on Weighted Low-Rank Sparseness(GWLS)
3 Experimental Results and Analysis
4 Summary
References
Constraint Self-updating Method for Autonomous Task Planning of Earth Observation Satellites Based on In-Orbit Data
Abstract
1 Introduction
2 Description of Satellite Autonomous Task Planning Constrains
3 The Constraints of Task Planning with Adjustable Parameters
3.1 Attitude Maneuver Constraints of Satellite Platform
3.2 Charging and Discharging Constraints of Satellite Power System
4 Auxiliary In-orbit Data Determination
5 Online Estimation of Constrained Adjustable Parameters Based on In-orbit Data
6 Simulation and Analysis for Algorithm
7 Conclusion
Acknowledgements
References
A Novel Message Communication Mechanism Based on Partition Name
Abstract
1 Introduction
2 Overview of Space-Time Partitioning OS
3 Message Communication Principle
4 Software Implementation
4.1 Data Structure Design
4.2 Message Interaction Interface Design
4.3 System Call Design
4.4 Partition Messaging Flow Design
5 Experiment
6 Conclusion
References
An Application of Image Denoising Technique Based on Convolutional Neural Network in Star Tracker
Abstract
1 Introduction
2 Star Maps Denoising Algorithm Based on Deep Convolution Neural Networks
2.1 Typical CMOS Noise Model
2.2 Generation of Training Dateset
2.3 A Modified Convolution Denoising Net Structure
2.4 Training with Synthetic and Real Noisy Star Images
3 Experimental Results
3.1 Improvement to the Number of Identified Star
3.2 Improvement to the Angular Distance Error
4 Conclusion
References
A Time System Based on All Digital Simulation Platform with Precise Clock
Abstract
1 Introduction
2 Design of Digital Simulation Platform
2.1 Simulation Platform Architecture
2.2 Instruction Translation and Execution
3 Design and Implementation of Time System
3.1 Time System Design Factors
3.2 SPARC V8 Instruction Set Execution Time Consuming
3.3 Time System Algorithm
4 Experimental Verification Results
5 Conclusion
References
Medium Power Class-E Amplifier Design
Abstract
1 Scope
2 Class-E Power Amplifier Introduction
3 Design and Verification of Class-E Amplifier
3.1 Transistor Model Establishment
3.2 Amplifier Design
3.3 Measurement Results
4 Conclusion
References
Ka Band Satellite Communication Adaptive Coding and Modulation Technology Based on Artificial Intelligence LDPC Code
Abstract
1 Introduction
2 Ka Band Satellite Communication Adaptive Coding
3 Method and Process of Research on Ka band Satellite Communication Adaptive Coding
3.1 Adaptive Coding Parameter Selection
3.2 Data-Assisted Maximum Likelihood Signal-to-Noise Ratio (DA-ML) Estimation
3.3 Second-Order Moment-Fourth-Order Moment Signal-to-Noise Ratio (M2M4) Estimation
4 SNR Estimation Algorithm Performance Simulation
4.1 Analysis of the Performance Results of the Maximum Likelihood Algorithm and the Second Moment-Fourth Moment Algorithm
4.2 Analysis of Error and Variance Results of Maximum Likelihood Algorithm and Second Moment-Fourth Moment Algorithm
5 Conclusion
References
Encoding and Decoding Algorithm of LDPC for Low Orbit Satellite Communication Based on Artificial Intelligence
Abstract
1 Introduction
2 LDPC Encoding and Decoding Algorithm for Low-Orbit Satellite Communication Based on Artificial Intelligence
2.1 Implementation Structure of LDPC Encoding and Decoding Algorithm
2.2 Multivariate LDPC Decoding Algorithm
2.3 Three Ways to Improve the Decoding Algorithm
2.4 Low-Complexity LDPC Encoding and Decoding Algorithm Improvement
3 Analysis of LDPC Performance Simulation Results Under Low-Orbit Satellite Channel Environment
3.1 Bit Error Rate Performance of LDPCs Under Rice Channel
3.2 Time Complexity Analysis
4 Conclusion
References
Capacity Analysis of Relay Channel Based on Computer Technology and LDPC Coding Cooperation and Satellite Communication
Abstract
1 Introduction
2 Capacity Analysis of Relay Channel Based on Computer Technology and LDPC Coding Cooperation and Satellite Communication
2.1 The Development of Coding Theory
2.2 Introduction to LDPC Codes
2.3 Collaborative MIMO Technology
3 Analysis and Research on the Capacity of Relay Channel
3.1 Maximum Flow-Minimum Cut Theorem
3.2 Relay Channel and Its Channel Capacity
3.3 Cooperative Communication in Satellite Communication
4 Simulation and Performance Analysis
4.1 Simulation Analysis of Cooperative Communication Performance in Satellite Communication
4.2 Performance Simulation Analysis of LDPC Coded Cooperative Communication Scheme
5 Conclusions
References
Design and Verification of HY-2A Satellite Precision Orbit Determination Technology
Abstract
1 Introduction
2 Composition of HY-2A Precision Orbit Determination System
3 Key Technologies and Difficulties
3.1 Research on Precision Orbit Determination Algorithm
3.2 Optimization of Observation Data of Dual Frequency GPS Receiver
3.3 Dual-Frequency GPS Antenna Phase Center Stability
3.4 Laser Ranging Technology
4 Test Verification
4.1 SLR Satellite-To-Ground Test
4.2 HY-2A Precision Track Accuracy Verification
5 Results and Summary
References
Design of High-Reliability LDPC Code Algorithm for Relay Satellite Communication System
Abstract
1 Introduction
2 Relay Satellite LDPC Encoding and Decoding Algorithm Design
2.1 Design of LDPC Coding Algorithm for Relay Satellite
2.2 Design of Decoding Algorithm for Relay Satellite LDPC Codes
2.3 Simulation Analysis of the Performance of Relay Satellite LDPC Codes
3 Conclusion
References
Research on Real-Time Monitoring Method of Spot Beam Antenna Direction on Satellites
Abstract
1 Introduction
2 Research on Real-Time Monitoring Method
2.1 Problem Formulation
2.2 Real-Time Monitoring Method
2.3 Construction of the Real-Time Monitoring System
3 Example of GF-3 Satellite
3.1 Simulation System Construction
4 Conclusion
References
A Novel SOC Estimation Approach for the Lithium-Ion Battery Pack Using in the Deep Space Landers
Abstract
1 Introduction
2 Model and Identification
2.1 Rint Model
2.2 Parameter Identification
3 SOC Estimation Method
4 Simulation and Verification
5 Results and Discussion
6 Conclusions
Acknowledgments
References
Analysis of Characteristics and Requirements of Large LEO Constellations Management
Abstract
1 Introduction
2 Large Constellation Development
2.1 Starlink
2.2 OneWeb
2.3 China’s Constellation
2.4 Summary
3 Characteristics of Large Constellation Management
3.1 Difficulty in Parallel Access
3.2 Difficulty in Long-Term Operation Management
3.3 Low Cost Introduces Risk
3.4 High Configuration Maintenance Requirement
4 Analysis of Large Constellation Management
4.1 Automation and Intelligence
4.2 Health Management
4.3 Configuration Maintenance
4.4 Constellation Autonomous Operation
5 Conclusion
References
Research on Space Project Systems Technological Risk Assessment Based on Multi-level Fuzzy Comprehensive Evaluation
Abstract
1 Introduction
2 Space Project Systemic Technological Risk Architecture and Characteristics
3 The Model and Method for Multi-level Fuzzy Comprehensive Evaluation of Technology Risk
4 Application Analysis
5 Conclusion
References
Research on the System Construction of Spaceborne Adaptive Software and Its Key Technologies
Abstract
1 Introduction
2 Overall Design of the Target System
3 Variability Modeling
3.1 Work Mode Modeling
3.2 Upstream Injection Modeling
4 Message Middleware Design
5 Parameter Control Center Design
5.1 Behavior Parameters Extraction
5.2 Structural Parameters Design
6 Adaptive Strategy Definition
7 Conclusion
References
Air-Space-Ground Integrated Information Network: Technology, Development and Prospect
Abstract
1 Introduction
2 Research Focus
3 Development Status
4 Future Prospects
References
High-Resolution Satellite Radiation Big Data All-Statistical Intelligent Screening Technology
Abstract
1 Introduction
2 The Principle of Big Data Full Statistical Radiation Calibration
3 Data Screening Strategy
3.1 Screening Strategy
4 Algorithm Strategy Effect
5 Conclusion
References
EMC System Control on XX-2 Satellite
Abstract
1 Introduction
2 EMC Work Planning
3 EMC Control and EMC Test Verification of Equipment
4 RF EMC System Analysis
5 RM Satellite Test
6 EMC System Test Verification
7 Conclusions
References
Transmission and Control of the Image Data from Remote Sensing Satellite to the Ground Station
Abstract
1 Introduction
2 Analysis of the Data Transmission
2.1 Quantity Analysis of the Sensor Data
2.2 Mode of the Data Transmission
2.3 Data Transmission System
3 The Pointing Control of the Antenna
3.1 Requirement of Antenna Control
3.2 Control Protocol
3.3 Safety Strategy
4 Application
5 Conclusion
References
Micro-vibration Attenuation Design, Analysis and Verification for Agile Remote Sensing Satellite
Abstract
1 Introduction
2 Micro-vibration Attenuation Technology Route
3 Micro-vibration Attenuation Design
3.1 Sensitive Payload Requirement Analysis
3.2 Micro-vibration Transfer Path
3.3 Disturbance Source Characteristics Research
3.4 Micro-vibration Attenuation Design
4 Micro-vibration Attenuation Verification at System Level
4.1 Ground Micro-vibration Test
4.2 On-Orbit Response Analysis
4.3 Fight Verification
5 Conclusion
References
Practice and Research on FMEA of Telecommunication Satellite System
Abstract
1 Introduction
2 FMEA Method on Satellite System
2.1 Equipment FMEA
2.2 System FMEA on Satellite
2.2.1 System FMEA Overview
2.2.2 System Failure and Risk Probability
3 System FMEA Practice on an International Commercial Telecommunication Satellite
3.1 Analysis Hypothesis
3.2 Typical Satellite System FMEA Process
3.3 Subsystem and Equipment FMEA
3.4 Practice on Telecommunication System FMEA
4 Problems When Study System FMEA on Telecommunication Satellite System at Present
4.1 Absence on System FMEA Work Item
4.2 The Size of Failure Mode is Always Different
4.3 False Redundancy, True Single Point of Failure Mode
4.4 True Redundancy, But Still Insecure
4.5 Single Evaluation of the Impact of System Failure Modes
4.6 Problems that Cannot Be Solved by System FMEA
5 Conclusion
References
Characterization of On-Orbit Temperature and Pressure Performance for Hydrazine Propulsion System
Abstract
1 Introduction
2 Hydrazine Propulsion System
3 Preheating Process of the 5N Thruster
3.1 Preheating Under Vacuum Conditions
3.2 Preheating Under Atmospheric Conditions
3.3 Preheating During Ascent Stage
4 Pressure Change of the Propulsion System
4.1 Pressure Change During Ascent Stage
4.2 Pressure Change Induced by Water Hammer Effect
4.3 Pressure Change in Locked Pipeline
5 Conclusions
References
On-Orbit Calibration of a 7-DOF Space Arm
Abstract
1 Background
2 Modeling
3 Calibration Method
4 Simulation
5 Conclusion
References
Correlation Analysis and Forecast of Electric Vehicle Charging Stations Considering Seasonal Factors
Abstract
1 Introduction
2 Data Statistics of Large EV Charging Station
2.1 Data Statistics of Charging Habits
2.2 Data Statistics of DC Charging Pile
2.3 Data Statistics of AC Charging Pile
3 Queuing Model of EV Charging Pile
3.1 Build the Queueing Model
3.2 Data Analysis
4 Conclusion
References
Inversion Modeling Study of Dissolved Oxygen in Wangyu River Based on BP Neural Network
Abstract
1 Introduction
2 Overview of the Study Area
3 Data Source and Preprocessing
4 Research Results and Analysis
4.1 Correlation Analysis
4.2 The BP Neural Network Model
4.3 Comparison with a Linear Regression Model
5 Conclusion
References
Research on Satellite Energy Autonomous Security Strategy
Abstract
1 Introduction
2 Characteristics of Satellite Mission Requirements
3 Energy System Solution
3.1 Energy System Hardware Architecture
3.2 Energy System Software Architecture
4 Design of Energy Security Self-management Strategy
4.1 Independent Management Strategy Architecture Design
4.2 Hardware Independent Safety Function Design
4.3 Software Autonomous Safety Function Design
4.4 Energy Management Function Design
5 Conclusion
References
Research and Development of High Speed and Large Bandwidth MIMO Data Transmission Test System
Abstract
1 First Section
2 System Model and Baseband Algorithm Design
2.1 Channel Estimation Technology
2.2 Signal Equalization Technology
3 Hardware Module and Software Module Design
3.1 Hardware Module Design
3.2 Software Module Design
4 Result
5 Conclusion
Acknowledgment
References
Multimedia and Communication
Continuous Evolution for Efficient Neural Architecture Search Based on Improved NSGA-III Algorithm
Abstract
1 Introduction
2 CARS
2.1 Non-dominated Sorting
2.2 pNSGA-III
3 I-CARS
3.1 PBI Distance
3.2 Selection-and-Elimination Operator
4 Experiments and Analysis
4.1 Experimental Setting
4.2 Analysis
5 Conclusions
Acknowledgment
References
Research on Individual Identification of Radar Emitter Based on Multi-domain Features
Abstract
1 Introduction
2 Related Work
3 Multi-domain Feature Extraction
3.1 Feature Extraction Based on Bispectrum
3.2 Feature Extraction Based on Wavelet Packet Decomposition and Time Domain Statistic
4 Experiment Analysis
5 Conclusion
References
Fast HEVC Intra CTU Partition Algorithm Based on Lightweight CNN
Abstract
1 Introduction
2 Proposed Method
2.1 Observations and Motivations
2.2 Three-Level Classifier
2.3 Neural Network Design
2.4 Database Construction
3 Experimental Results
3.1 Comparison of Model Size
3.2 Performance Evaluation
3.3 Ablation Study
4 Conclusions
References
A New Pulmonary Nodule Detection Based on Multiscale Convolutional Neural Network with Channel and Attention Mechanism
Abstract
1 Introduction
2 Method
2.1 Architecture
2.2 Attention Module
2.3 Multiscale Module
3 Experiments
3.1 Training and Test
3.2 Ablation Study
3.3 Results
4 Conclusion
References
A Novel Attention Mechanism for Scene Text Detection
Abstract
1 Introduction
2 Methodology
3 Experiments
3.1 Dataset
3.2 Evaluation Metrics
3.3 Ablation Experiment
3.4 Contrast Experiment
4 Conclusion
References
Epileptic Seizure Detection Based on Multi-synchrosqueezing Transform and Multi-label Classification
Abstract
1 Introduction
2 Material and Method
2.1 EEG Database
2.2 MSST Transform
2.3 MLKNN
2.4 Post-processing
3 Result
4 Conclusion
References
Mobility-Aware Task Offloading Scheme Based on Optimal System Benefit in Multi-access Edge Computing
Abstract
1 Introduction
2 Problem Formulation
2.1 Transmit and Receive Cost
2.2 Calculation Cost
2.3 Migration Cost
2.4 Idle Cost
2.5 Energy Consumption
2.6 System Benefit Function
3 Simulation Analysis
4 Conclusion
References
Design of Electronic Intelligent Code Lock
Abstract
1 Introduction
2 Total Design Scheme of Intelligent Electronic Code Lock
2.1 System Structure Design
2.2 Main Functions of the System
3 System Hardware Design
3.1 STM32 Main Control Circuit
3.2 Touch Screen Circuit Module
3.3 Radio Frequency Card Reading Circuit
3.4 WIFI Module Circuit
4 Software Design of Intelligent Electronic Password Lock
4.1 Overall Design
4.2 Password Judgment Module Design
4.3 RF Card Module Design
4.4 Communication Module Design
5 System Test
6 Conclusion
References
Integrating Ensemble Learning and Information Entropy for Diabetes Diagnosis
Abstract
1 Introduction
2 Data Preprocessing
2.1 Outlier Detection and Processing
2.2 Missing Value Processing
3 Feature Engineering
3.1 Feature Construction
3.2 Feature Selection
4 Model Building and Post-processing
5 Conclusion
References
The Optimal UDP Data Length in Ethernet
Abstract
1 Introduction
2 Experiments and Results
3 Analysis
4 Conclusion
References
An Attention-GRU Based Gas Price Prediction Model for Ethereum Transactions
Abstract
1 Introduction
2 Related Work
3 Influencing Factors and the Price Prediction Model
3.1 Influencing Factors of Gas Price
3.2 An Attention-GRU Based Gas Price Prediction Model
3.3 Evaluation Index
4 Experiments and Performance Evaluation
5 Conclusions
References
A Research on an Unknown Radar Signal Sorting with DBSCAN-BP Algorithm
Abstract
1 Introduction
2 DBSCAN Algorithm
2.1 Data Classification
2.2 Algorithm Flow
3 BP Neural Network Algorithm
4 DBSCAN-BP Algorithm
4.1 Radar Signal Data Preprocessing
4.2 DBSCAN-BP Radar Signal Sorting Algorithm
5 Simulation Analysis
5.1 Radar Big Data Acquisition
5.2 Experiment and Parameter Setting
5.3 Analysis of Sorting Results
6 Conclusions
References
An Industrial Internet Delay Optimization Scheme Based on Time Sensitive Network
Abstract
1 Introduction
2 System Model
2.1 EWRR Queue Scheduling Algorithm
2.2 TAS-EWRR Queue Scheduling Algorithm and Model
2.3 Delay-Based Dijkstra Algorithm
3 System Simulation
3.1 Single Switch Node Model
3.2 Network Model
4 Conclusion
Acknowledgement
References
The Key Technology of Ultra-high-Speed Laser Communication Principle Verification System
Abstract
1 Introduction
2 Basic Architecture of Equipment
3 Design of Data Flow Scheme
3.1 User Data Sending Mode
3.2 Error Rate Statistics Mode
4 Summary
References
Inappropriate Visual Content Detection Based on the Joint Training Strategy
Abstract
1 Introduction
2 Proposed Method
2.1 Network Sharing and Multi-scale Fusion
2.2 Joint Prediction Training Strategy
2.3 Focal Loss Improvement
3 Experiments
3.1 Dataset
3.2 Results
4 Conclusions
Acknowledgement
References
Spectral Optimization for Multi-carrier NOMA-Enabled Industrial Internet of Things
Abstract
1 Introduction
2 System Model and Problem Formulation
2.1 System Model
2.2 Spectral Efficiency Problem Formulation
2.3 Proposed Solutions
3 Simulation Results
4 Conclusion
Acknowledgement
References
Local Edge Structure Guided Depth Up-Sampling
Abstract
1 Introduction
2 Proposed Method
2.1 Image Preprocessing
2.2 Pixel Classification
2.3 Depth Refinement
3 Experimental Results
4 Conclusion
References
Deep Learning and XGBoost Based Prediction Algorithm for Esophageal Varices
Abstract
1 Introduction
2 Materials
3 Methods
3.1 Image Preprocessing
3.2 Feature Extraction
3.3 Feature Selection
3.4 Classification
4 Experimental Results
5 Conclusion
References
A Data-Driven Model for Bearing Remaining Useful Life Prediction with Multi-step Long Short-Term Memory Network
Abstract
1 Introduction
2 Proposed Method
2.1 HI Curve Construction
2.2 HI Curve Prediction via MS-LSTM
2.3 Calculation of RUL
3 Experiments and Results
3.1 Dataset
3.2 HI Curve Construction Experiment
3.3 Comparison Experiment of HI Prediction
4 Conclusions
References
State Estimation of Networked Control Systems with Packet Dropping and Unknown Input
1 Introduction
2 Problems Statement
3 LMMSE Estimation
4 Minimum Variance Unbiased Estimation
4.1 Input Estimation
4.2 State Estimation
5 Simulation Results
6 Conclusion
References
Self-attention Mechanism Fusion for Recommendation in Heterogeneous Information Network
Abstract
1 Introduction
2 Related Work
2.1 Recommendation Based on Attention Mechanism
2.2 Network Embedded Learning
2.3 The Proposed Model
2.4 Basic Recommendation Model Based on Attention Mechanism
2.5 Global Information Modeling Based on Self-attention
2.6 Joint Model
3 Experiments
3.1 Compared Methods
3.2 Detailed Implementation
3.3 Results
3.4 Conclusion
Acknowledgment
References
DAMNet: Hyperspectral Image Classification Method Based on Dual Attention Mechanism and Mix Convolutional Neural Network
Abstract
1 Introduction
2 Materials and Methods
3 Experimental Results
3.1 Experimental Settings and Assessment Criteria
3.2 Compare with Other Methods
4 Conclusions
References
Dual-Discriminator Based Multi-modal Medical Fusion
Abstract
1 Introduction
2 Method
2.1 Generative Confrontation Network with Dual Discriminator Conditions
2.2 Pre-trained Neural Network
3 Experiments
3.1 Experiment Preparation and Setup
3.2 Comparison with Other Image Fusion Methods
4 Conclusion
Acknowledgments
References
Topology Design of Aircraft Cargo Loading Control System
Abstract
1 Introduction
1.1 Typical Topology and Existing Problems
1.2 Load Rate of Communication Bus
1.3 Research Contents
2 Calculation Method of Bus Load Rate
3 Design of Communication Network Topology
3.1 Scheme 1
3.2 Scheme 2
3.3 Scheme 3
4 Simulation and Analysis of CAN Bus Topology
5 Conclusion
References
Information Bottleneck Attribution Based Retinal Disease Classification Using OCT Images
Abstract
1 Introduction
2 Related Work
2.1 Information Bottleneck for Attribution
3 Method
3.1 Per-sample Bottleneck
3.2 Readout Bottleneck
4 Experiments and Results
4.1 Datasets
4.2 Experimental Results
5 Discussion and Concluding Remarks
References
Distributed Consensus for Discrete Multi-agent Systems with Time Delay in the Transmission
1 Introduction
2 Preliminary
3 Problem Statement
4 Main Results
5 Numerical Example
6 Conclusion
References
Simulation Design of Space Gravitational Wave Detection Satellite Formation
Abstract
1 Introduction
2 Simulation System Design
3 Comprehensive Scene Display System Design
4 Attitude and Orbit Control Simulation System Design
5 Simulation Results
6 Conclusion
References
Scheme Design for Cargo Loading Control System of Cargo Plane
Abstract
1 Introduction
1.1 Composition of Automatic Loading System
1.2 Research Content
2 Functions and Requirements
3 Architecture Design for Controller
3.1 Design of CAN Communication Network
3.2 Design of CAN Communication Message
4 Implementation Scheme for Controller
4.1 Scheme Design of Hardware and Software
4.2 Scheme and Implementation of System Visualization
5 Conclusion
References
Chinese Word Segmentation of Ideological and Political Education Based on Unsupervised Learning
Abstract
1 Introduction
2 Theory
2.1 Character-Level N-Gram Language Model
2.2 Viterbi Algorithm
3 Proposed Method
3.1 The Construction of Corpus
3.2 Training and Application of Character-Level N-Gram Model
4 Experiment
4.1 Language Model Comparison Test
4.2 Algorithm Accuracy Test
5 Conclusion
References
Random Design and Quadratic Programming Detection of Cayley Code in Large MIMO System
Abstract
1 Introduction
2 Description of Cayley Code Transmission
3 Cayley Code Design Based on Random Complex Gaussian Matrices
4 Quadratic Programming Detection of Cayley Code
5 Simulation Results and Performance Analysis
6 Conclusion
References
The Design and Implementation of Mobile Operation Platform Based on Domain Driven Design
Abstract
1 Introduction
2 Scenario-Based Micro-application Design for Mobile Operation
2.1 Scenario-Based Micro-application Design Method
2.2 Scenario-Based Micro-application for Mobile Operations
3 Design of Domain-Driven Mobile Operation Middle-Ground
3.1 Design Method of Domain-Driven Mobile Operation Business Middle-Ground
3.2 The Mobile Operation Business Middle-Ground
4 Architecture of Platform Construction
5 Conclusion
Acknowledgement
References
Research on Ensemble Prediction Model of Apple Flowering Date
Abstract
1 Introduction
2 Data Description and Study Methodology
2.1 Data Description
2.2 Research Methodology
3 Results and Analysis
3.1 Data Pre-processing Results
3.2 Analysis of Variable Screening Results
3.3 Analysis of Prediction Results
4 Summary
Acknowledgements
References
Apple Leaf Disease Identification Method Based on Improved YoloV5
Abstract
1 Introduction
2 Materials and Methods
2.1 Dataset Acquisition and Image Augmentation
2.2 An Improved YoloV5s Object Detection Framework
3 Results and Analysis
3.1 Experimental Environment and Parameter Settings
3.2 Model Performance Evaluation Metrics
3.3 Comparison of Model Improvement Effects
4 Conclusion
Acknowledgements
References
Analysis of Apple Replant Disease Based on Three Machine Learning Methods
Abstract
1 Introduction
1.1 Apple Replant Disease Background
1.2 Influencing Factors of Apple Replant Disease
1.3 Apple Replant Disease Prevention and Control
2 Data and Methods
2.1 Data Set and Its Division
2.2 Data Preprocessing
2.3 Model Establishment
3 Results and Analysis
3.1 Experimental Results
4 Conclusion
Acknowledgements
References
Improved Federated Average Algorithm for Non-independent and Identically Distributed Data
Abstract
1 Introduction
2 Method
2.1 Improved FedAvg Algorithm
3 Experimental
3.1 Experimental Setup
3.2 Result
4 Conclusions and Future Work
Acknowledgements
References
A Monitoring Scheme for Pine Wood Nematode Disease Tree Based on Deep Learning and Ground Monitoring
Abstract
1 Introduction
2 Solution Design and Implementation
2.1 Experiment Location and Equipment
2.2 Obtaining Images
2.3 Datasets
3 Algorithm Research
3.1 YOLOv3 Network
3.2 SENet Attention Mechanism Module
3.3 Bottom-Up Multi-scale Feature Fusion
4 Analysis of Experimental Results
5 Conclusion
Acknowledgements
References
An Optical Detection Method with Noise Suppression for Focal Panel Arrays
Abstract
1 Introduction
2 System Overview and Signal Design
2.1 System Overview
2.2 Signal Design
3 Modeling and Algorithms
4 Application and Simulation
5 Conclusion
References
Orientation-Aware Vehicle Re-identification via Synthesis Data Orientation Regression
Abstract
1 Introduction
2 Related Work
2.1 Orientation-Aware Vehicle Re-ID
2.2 Utilization of Synthetic Data in Re-ID
3 Method
3.1 Synthesis Data Orientation Regression
3.2 Orientation Bias Elimination
4 Experiments
4.1 Datasets
4.2 Evaluation Metric
4.3 Implementation Details
4.4 Comparison with State-of-the-Art Methods
5 Conclusion
References
Opportunities and Challenges of Artificial Intelligence Education in Secondary Vocational Schools Under the Background of Emerging Engineering
Abstract
1 Introduction
2 Artificial Intelligence Education
3 The Development Background of Artificial Intelligence Education at Home and Abroad
3.1 The Development of Artificial Intelligence Education Abroad
3.2 The Development of Artificial Intelligence Education in China
4 The Development of Artificial Intelligence Education in My Country’s Secondary Vocational Schools
4.1 From the Perspective of the Number of Documents Published Over the Years
4.2 Based on the Number of Papers Published in Different Regions
5 The Necessity of Artificial Intelligence Education in Secondary Vocational Schools
6 Opportunities and Challenges of Artificial Intelligence Education in Secondary Vocational Schools
6.1 Opportunities for Artificial Intelligence Education in Secondary Vocational Schools
6.2 The Challenge of Developing Artificial Intelligence Education in Secondary Vocational Schools
7 System Construction of Artificial Intelligence Education in Secondary Vocational Schools
7.1 Improve the Artificial Intelligence Education Curriculum System
7.2 Speed up the Training of AI Teachers and Improve Teachers’ AI Literacy
7.3 Improve the Construction of Artificial Intelligence Education Base
7.4 Strengthen School-Enterprise Cooperation and Promote Enterprises to Participate in Running Schools
8 Conclusion
References
Research on the Hotspots and Trends of Student Portrait Based on Citespace
Abstract
1 Introduction
2 Data Source and Research Method
2.1 Data Source and Processing
2.2 Research Tool and Method
3 Student Portrait Literature in Time and Space Distribution
3.1 Time Distribution of Literature
3.2 Distribution Map of Literature Author
4 Student Portrait Research Hotspots Analysis
4.1 Keyword Statistical Analysis
4.2 Keyword Clustering Map and Research Hotspots Analysis
5 Research Trends of Student Portrait
6 Conclusions and Suggestions
References
An Overview on Digital Content Watermarking
Abstract
1 Introduction
2 Research Status of Digital Watermarking
3 Some Specific Algorithms
3.1 Typical Spatial Algorithm
3.2 Typical Transform Domain Algorithm
4 Attacks on Digital Watermarking
4.1 Signal Processing Attacks
4.2 Geometric Attacks
4.3 Protocol Attacks
4.4 Cryptographic Attacks
5 Possible Future Research Directions
6 Conclusion
References
Location-Independent Human Activity Recognition Using WiFi Signal
Abstract
1 Introduction
2 Related Work
2.1 Recent Advances in Human Activity Recognition
2.2 Data Acquisition and Data Description
3 System Design
3.1 System Overview
3.2 Pre-processing
3.3 Classifier Models for 1-Dimensional CNN
4 Experimental Results and Discussion
5 Conclusion
References
Design of Text Summarization System Based on Finetuned-BERT and TF-IDF
Abstract
1 Research Background
2 Introduction to the NLP Field
2.1 Text Preprocessing Technology
2.2 BERT-Based Method
2.3 Graph-Based Method
2.4 Method Based on Word Fequency Statistics
3 System Requirements and Framework Design
3.1 System Requirements
3.2 System Framework Design
4 System Realization and Effect Display
4.1 Effect Display for the .txt Type of Input
4.2 Effect Display for the .Jpg Type of Input
5 Conclusion
References
Rogue WiFi Detection Based on CSI Multi-feature Fusion
Abstract
1 Introduction
2 CSI Acquisition and Phase Analysis
3 Data Preprocessing and Feature Extraction
3.1 Phase Unwrapping
3.2 Phase Filter
3.3 CFO Feature Extraction
3.4 Non-linear Phase Error Feature Extraction
4 Feature Evaluation and Fusion
4.1 Feature Evaluation
4.2 Feature Fusion
5 System Design and Simulation Analysis
5.1 System Design
5.2 Simulation Analysis
6 Conclusion
References
Panoramic Video Quality Assessment Based on Spatial-Temporal Convolutional Neural Networks
Abstract
1 Introduction
2 Background
2.1 Panoramic Video
2.2 Datasets
2.3 Convolutional Neural Networks
3 Proposed Model
3.1 Spatial-Temporal Convolutional Neural Networks
3.2 Weight Calculation
4 Experiment and Result
5 Conclusion
References
Fast CU Partition Algorithm for AVS3 Based on DCT Coefficients
Abstract
1 Introduction
2 Working Principle of CU Partition in AVS3
3 DCT and Implementation of Fast CU Partition Algorithm
3.1 Discrete Cosine Transform
3.2 Fast CU Partition Algorithm
4 Experimental Results
5 Conclusions
References
Research on Recognition Method of Maneuver and Formation Tactics in BVR Cooperative Combat Based on Dynamic Bayesian Network
Abstract
1 Backgrouad
2 Theoretical Basis
2.1 Dynamic Bayesian Network
2.2 Cloud Model
3 Recognition Model of BVR Maneuvers Based on DBN
3.1 Construction of Recognition Model of Typical Maneuvers of BVR
3.2 Tactical Identification Model Reasoning Process Based on DBN
4 Recognition Model of BVR Formation Tactics Based on DBN
4.1 Construction of Typical Formation Tactics Recognition Network of BVR
5 Simulation Experiment and Analysis
6 Conclusion
References
Fast Intra Prediction Algorithm for AVS3
Abstract
1 Introduction
2 Proposed Algorithms
2.1 Fast CU Partition Algorithm Based on the Best DT Partition
2.2 Fast Intra Mode Decision-Making Algorithm Based on the Best Prediction Mode Under 2Nx2N Partition Mode
3 Experimental Results
4 Conclusion
References
Big Data Workshop
Research on Interference Source Identification and Location Based on Big Data and Deep Learning
Abstract
1 Introduction
2 Programme Background
3 Algorithm Design
3.1 Interference Type Recognition Algorithm
3.2 External Interference Source Localization Algorithm
4 Output Result
4.1 External Interference Source Location Algorithm
4.2 List of Interference Sources
4.3 Uplink Interference Data
4.4 Page Data Rendering Results
5 Conclusions
References
Research on Automated Test and Analysis System for 5G VoNR Service
Abstract
1 Introduction
2 Key Technologies of 5G VoNR Solutions
2.1 5G Voice Solutions Evolution
2.2 5G VoNR Solution
3 Automated Test and Analysis System for 5G VONR Service
3.1 Simulation Dial-and-Test Module
3.2 Quality Assessment Module
3.3 Automatic Early Warning Module
4 5GC Network Capability Application Solution
4.1 VoNR Service Guarantee During Network Updates
4.2 Routine Inspection of the Core Network
5 Conclusion
Acknowledgment
References
Mobile Network Monitoring Technology for City Freeway Based on Big Data Analysis
Abstract
1 Introduction
2 Architecture of Big Data Platform for Mobile Network Quality Control
3 Mobile Network Monitoring Scheme for City Freeway Based on Big Data Analysis
3.1 Related Definitions
3.2 Identification Model for City Freeway User
3.3 Network Monitor for City Freeways
3.3.1 Acquisition Data
3.3.2 Generate Freeway Users Perception Indices Bill
3.3.3 Attach Labels of Road Sections
3.3.4 Generate Application Table by Aggregation
3.3.5 Web Presentation
4 Conclusions
References
5G Uplink Coverage Enhancement Based on Coordinating NR TDD and NR FDD
Abstract
1 Introduction
2 Uplink and Downlink Decoupling SUL Technology
3 Uplink Enhancement Based on Coordinating NR TDD and NR FDD
3.1 NR TDD and NR FDD Timeslot Scheduling
3.2 Performance Comparison Analysis
4 LTE Load-Based SUL Uplink and Downlink Decoupling Mode
5 Conclusion
References
Application of Improved GRNN Algorithm for Task Man-Hours Prediction in Metro Project
Abstract
1 Introduction
2 Related Work
3 Materials and Methods
3.1 GRNN
3.2 The Method Proposed
4 Performance Analysis
4.1 Analysis of Influencing Factors of Man-Hours
4.2 Man-Hour Prediction and Analysis
5 Conclusion
Acknowledgements
References
Resident Area Determination Model Based on Big Data and Large Scale Matrix Calculation
Abstract
1 Introduction
2 Trace in Cell Level Modelling
3 Data Collection and Trace Construction
4 Resident Area Determination with Matrix
4.1 Rough Estimation of Resident Area
4.2 Resident Area Self-recognition
4.3 Calculation and Verification
Acknowledgement
References
Research of New Energy Vehicles User Portrait and Vehicle-Owner Matching Model Based on Multi-source Big Data
Abstract
1 Introduction
2 Research of User Profile Based on Multi-source Big Data
2.1 Network Behavior Preference
2.2 Distribution of Living and Working Areas
2.3 Geographical Distribution of Charging Stations
3 Research of Vehicle-Owner Matching Model
4 Conclusion
References
Cell Expansion Priority Recommendation Based on Prophet Algorithm
Abstract
1 Introduction
2 Research Theory and Method
2.1 Prophet Time Prediction Algorithm Introduction
2.2 Analysis of Key Factors Affecting Network Capacity
3 Overall Model Construction
3.1 Introduction to Expansion Priority Recommendation Process
3.2 Expansion Priority Recommendation Model
4 Model Experiment and Result Analysis
4.1 Data Preparation
4.2 Prediction of Cell Traffic Based on Prophet Model
4.2.1 Predictive Analysis of Each Component of Prophet
4.2.2 Analysis of Prediction Results of Cell Traffic
4.2.3 Comparative Analysis of Prediction Results Between Prophet and LSTM
4.3 Expansion Priority Recommendation Results and Analysis
5 Conclusion
References
Load and Energy Balance Strategy of SDN Control Plane in Mobility Scenarios
Abstract
1 Introduction
2 System Model
2.1 Architecture
2.2 Problem Formulation
3 Controller Placement
3.1 Position Prediction Algorithm
3.2 Controller Placement Algorithm
4 Evaluation
4.1 Simulation Environment
4.2 Prediction Accuracy
4.3 The Network Performance
5 Conclusion
References
A Method for Intelligently Evaluation the Integrity of 5G MR Data
Abstract
1 Introduction
2 The Overall Scheme Description
3 Machine Learning Algorithm Selection
3.1 Correlation Analysis
3.2 Multiple Linear Regression Analysis
4 Detailed Scheme Evaluation
4.1 Extract the Quantity of MR Sampling Points
4.2 Extract Relevant Performance Indicators
4.3 Correlation Analysis
4.4 Modeling of MR Sampling Evaluation Function
4.5 Accuracy Verification of Regression Model
4.6 Integrity Verification of MR Data
5 Conclusions
References
Internet of Vehicles Product Recommendation Algorithm and Implementation Based on Ensemble Learning
Abstract
1 Introduction
2 System Architecture
3 Implementation Process
4 Effect Evaluation
5 Conclusion
Acknowledgment
References
Research and Verification of Power Saving Technology in 5G Network
Abstract
1 Introduction
2 Power Saving Function of 5G Base Station
2.1 Subframe Shutdown
2.2 Chanel Shutdown
2.3 Cell Shutdown
3 Detailed Strategy
3.1 Test Plan
3.2 Emergency Strategy
4 Effect Evaluation
4.1 Overall Situation
4.2 City Level Verification
4.3 Single Base Station Verification
4.4 Impact on Network Quality
4.5 Implementation Strategy
5 Conclusion
References
Application of XGBOOST Model on Potential 5G Mobile Users Forecast
Abstract
1 Introduction
1.1 5G Internet Development and Potential Profits
2 Data and Method
2.1 Data Collection and Feature Selection
2.2 Data Cleaning
2.2.1 Training data
3 Model
3.1 Model Parameters
3.2 Model Validity
4 Model Results and Feature Importance
5 Conclusion
References
Research on Methodology of Symmetry Optimization with Backpropagation
Abstract
1 Introduction
2 Lagrangian Structure for Higgs Mechanism
2.1 The Principle of Least Action
2.2 Analysis of Conservation Laws Based on Noether’s Theorem
2.3 Maxwell’s Lagrangian
3 Analyses of Symmetry for Standard Model
3.1 Global Symmetry
3.2 Local Symmetry
3.3 Scalar Electrodynamics
4 Optimization for Symmetry Breaking
4.1 Global Symmetry Breaking
4.2 Local Symmetry Breaking
5 Conclusion
References
Author Index