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Author Rafaely, Boaz, author
Title Fundamentals of spherical array processing / by Boaz Rafaely
Imprint Berlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer, 2015
book jacket
Descript 1 online resource (x, 193 pages) : illustrations, digital ; 24 cm
text txt rdacontent
computer c rdamedia
online resource cr rdacarrier
text file PDF rda
Series Springer topics in signal processing, 1866-2609 ; volume 8
Springer topics in signal processing ; volume 8
Note Mathematical background -- Acoustical Background.-Sampling the Sphere -- Spherical array configurations -- Spherical Array Beamforming -- Optimal beam pattern design -- Beamforming with noise minimization
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 measured sound field
Host Item Springer eBooks
Subject Signal processing
Array processors
Signal, Image and Speech Processing
Engineering Acoustics
Alt Author SpringerLink (Online service)
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