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performing of nearfield beamforming using phased array toolbox

조회 수: 11 (최근 30일)
Alexey
Alexey 2012년 5월 31일
답변: Zeynep Ertekin 2017년 1월 22일
hello! I have an arbitrary microphone array configuration and need to perform sound localization and beamforming in near field. Sound sources have spherical wavefronts and i need to search in 3d space . Still I cannot understand how to do that using phased array toolbox ( as i understand all matlab beamforming functions work with the plane wavefronts) Thank you in advance for your help!

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Honglei Chen
Honglei Chen 2012년 5월 31일
Hi Alexey, Phased Array System Toolbox currently can only deal with plane wavefront. You may need to write some custom code to simulate the spherical wavefront and beamformer. Basically you can get the position of each elements and then compute the distance between each microphone and source. It actually doesn't take very long to have it become plane wavefront so if you want to do a quick check, plane wavefront may not be a bad approximation.

추가 답변 (2개)

Gu
Gu 2012년 11월 22일
Yes,you can get steering matrix just as farfield.Do yo have tips in wideband beamforming?

Zeynep Ertekin
Zeynep Ertekin 2017년 1월 22일
I need a 2-d or 3-d sound source localization code with command load, can anyone please help me? Any help will be highly appreciated...

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