vbid/9783319995618

Description

This book provides a comprehensive introduction to the theory and practice of spherical�microphone arrays, and was written for graduate students, researchers and engineers who�work with spherical microphone arrays in a wide range of applications. The new edition�includes additions and modifications, and references supplementary Matlab code�to provide the reader with a straightforward start for own implementations. The book is also�accompanied by a Matlab manual, which explains how to implement the examples and�simulations presented in the book.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. In turn, 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 highlight 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 those that achieve maximum directivity and maximum robustness are�developed, along with the Dolph�Chebyshev beamformer. The final chapter discusses more�advanced beamformers, such as MVDR (minimum variance distortionless response) and�LCMV (linearly constrained minimum variance) types, which are tailored to the measured�sound field. Mathworks kindly distributes the Matlab sources for this book on www.mathworks.com/matlabcentral/fileexchange/68655-fundamentals-of-spherical-array-processing.Typham this is the title: Fundamentals of Spherical Array Processing 2nd Edition