A LOW-FREQUENCY SUPERDIRECTIVE ACOUSTIC VECTOR SENSOR ARRAY

被引：0

作者：

Guo, Xijing ^{[1
]}

Yang, Shie ^{[2
]}

Zhang, Hu ^{[2
]}

机构：

[1] Northwestern Polytech Univ, Sch Marine Sci & Technol, 127 Youyi Xilu, Xian 710072, Shaanxi, Peoples R China

[2] Harbin Engn Univ, Acoust Sci & Technol Lab, 145 Nantong St, Harbin 150001, Heilongjiang, Peoples R China

来源：

2015 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP) | 2015年

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Acoustic vector sensor; multipole; beamforming; superdirectivity; array signal processing; SPHERICAL MICROPHONE ARRAYS; DECOMPOSITION; DESIGN;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper provides a novel acoustic vector sensor array architecture for superdirectivity at low frequencies. It has a uniform 3 by 3 rectangular geometry of intersensor spacing less than 0.04 wavelength over its operation frequency band, with an up to 10.4 dB of directivity index in cylindrically isotropic noise. This is realized through a mode domain approach, which accesses the acoustic modes by fitting certain multipole models to the wavefield observations. Field experiments show that this is a practical solution of implementing a miniaturized vector sensor array with superdirectivity.

引用

页码：2734 / 2738

页数：5

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