Fundamentals of Spherical Array Processi
β Boaz Rafaely
π Library
π
2019
π Springer
π English
β¦ LIBER β¦
π
Fundamentals of Spherical Array Processing
β Scribed by Boaz Rafaely (auth.)
- Publisher
- Springer-Verlag Berlin Heidelberg
- Year
- 2015
- Tongue
- English
- Leaves
- 196
- Series
- Springer Topics in Signal Processing 8
- Edition
- 1
- Category
- Library
β¬ Acquire This Volume
No coin nor oath required. For personal study only.
β¦ Synopsis
This book provides a comprehensive introduction to the theory and practice of spherical microphone arrays. It is written for graduate students, researchers and engineers who work with spherical microphone arrays in a wide range of applications.
The first two chapters provide the reader with the necessary mathematical and physical background, including an introduction to the spherical Fourier transform and the formulation of plane-wave sound fields in the spherical harmonic domain.
The third chapter covers the theory of spatial sampling, employed when selecting the positions of microphones to sample sound pressure functions in space. Subsequent chapters present various spherical array configurations, including the popular rigid-sphere-based configuration. Beamforming (spatial filtering) in the spherical harmonics domain, including axis-symmetric beamforming, and the performance measures of directivity index and white noise gain are introduced, and a range of optimal beamformers for spherical arrays, including beamformers that achieve maximum directivity and maximum robustness, and the Dolph-Chebyshev beamformer are developed. The final chapter discusses more advanced beamformers, such as MVDR and LCMV, which are tailored to the measured sound field.
β¦ Table of Contents
Front Matter....Pages i-x
Mathematical Background....Pages 1-30
Acoustical Background....Pages 31-55
Sampling the Sphere....Pages 57-77
Spherical Array Configurations....Pages 79-99
Spherical Array Beamforming....Pages 101-123
Optimal Beam Pattern Design....Pages 125-153
Beamforming with Noise Minimization....Pages 155-182
Back Matter....Pages 183-193
β¦ Subjects
Signal, Image and Speech Processing; Engineering Acoustics
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