A new GSC beamforming algorithm based on double affine projection

In generalized sidelobe canceller beamforming (GSC) algorithm, the blocking matrix Alters out the desired signal in order to pass the interference signal and noise. In this paper, we propose a DAP-GSC beamforming algorithm based on double affine projection (DAP) algorithm to restrain the desired sig...

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Bibliographic Details
Published in2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting pp. 1 - 4
Main Authors Zehua Liu, Shouhao Wu, Yongjie Wang, Wenxiu Guo, Jie Zhang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2014
Subjects
Adaptive filters
Array signal processing
Arrays
Audio Technology
DAP Algorithm
GSC Beamformer
Microphones
Multimedia Processing
Noise
Signal processing algorithms
Speech
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Summary:In generalized sidelobe canceller beamforming (GSC) algorithm, the blocking matrix Alters out the desired signal in order to pass the interference signal and noise. In this paper, we propose a DAP-GSC beamforming algorithm based on double affine projection (DAP) algorithm to restrain the desired signal, when the blocking matrix (BM) can't cancel the desired signal completely. We add a Normalize Least Mean Square (NLMS) filter between the blocking matrix (BM) and the adaptive noise cancellation (ANC). With sound source position error or array error, this method can achieve high SNR with a small number of microphones.
ISSN:2155-5044
2155-5052
DOI:10.1109/BMSB.2014.6873479