DOUBLE SIDED CONE ARRAY FOR SPHERICAL HARMONIC ANALYSIS OF WAVEFIELDS

被引：14

作者：

Gupta, Aastha ^{[1
]}

Abhayapala, Thushara D. ^{[1
]}

机构：

[1] Australian Natl Univ, Coll Engn & Comp Sci, Appl Signal Proc Grp, Canberra, ACT 0200, Australia

来源：

2010 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING | 2010年

关键词：

Array Signal Processing; Spherical Harmonics; Microphone Arrays; Beamforming;

D O I：

10.1109/ICASSP.2010.5496193

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper presents a double sided conical sensor array for common array processing applications. We show that double sided cone arrays are specially suited for extraction of spherical harmonic components of three dimensional spatial wavefields. We use a less known orthogonal relationship of spherical Bessel functions to develop a novel analysis equation for spherical harmonic extraction. As an illustration, we design and simulate a 5th order spherical harmonic decomposition array using 89 microphones to operate over a frequency band of an octave.

引用

页码：77 / 80

页数：4

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