Non-negative least squares deconvolution method for mirror-ground beamforming

被引：7

作者：

Chu Zhigang ^{[1
,2
]}

Shen Linbang ^{[2
]}

Yang Yang ^{[3
]}

Wang Guangjian ^{[1
]}

机构：

[1] Chongqing Univ, State Key Lab Mech Transmiss, Chongqing, Peoples R China

[2] Chongqing Univ, Coll Mech Engn, Chongqing, Peoples R China

[3] Chongqing Ind Polytech Coll, Fac Automobile Engn, Chongqing, Peoples R China

来源：

JOURNAL OF VIBRATION AND CONTROL | 2016年 / 22卷 / 16期

基金：

中国国家自然科学基金;

关键词：

Beamforming; clear method; deconvolution; mirror ground; ACOUSTIC SOURCE STRENGTH; INVERSE METHODS;

D O I：

10.1177/1077546314563778

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In order to improve the acoustic source identification performance of beamforming when ground reflection exists, an array point spread function was derived and a corresponding non-negative least squares deconvolution method was given for a mirror-ground beamforming method. Simulations of a known acoustic source indicate that the given method is correct, and it could not only clear the acoustic source identification results effectively by improving the spatial resolution and attenuating the sidelobe interference, but it could also be superior to the conventional beamforming deconvolution method. On this basis, experiments were conducted to validate the correctness of the simulations and the effectiveness of the mirror-ground beamforming deconvolution method in practical application.

引用

页码：3470 / 3478

页数：9

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