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《Applied Acoustics》 2009-05
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Sidelobe controling of the inverse beamforming

WANG Zhong JIANG Han-Zhong CHEN Fu-Hu (Hangzhou Applied Acoustics Research Institute,Hangzhou,310012)  
In order to reduce the sidelobe level of the conventional beamforming,a new sidelobe controling technology is presented.It uses the sidelobes of the direction function to estimate the respond of the acoustic intensity,which is then subtracted from the acoustic intensity estimated by array,to get the finial acoustic intensity.The sidelobes so estimated are reduced greatly because more sidelobes are subtracted.The technology can restrain effectively the interference,while retain the high-resolution of the conventional inverse beamforming.The results of a lake trial show the effectiveness and feasibility of the technology.
【CateGory Index】: TB52
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 WAN Jin, SONG Zhi-jie(Oceanorgraphy University of China, Qingdao 266071, China);Inverse beam forming on equispaced line array with moving average[J];Technical Acoustics;2007-03
2 WANG Liang SONG Zhi-Jie (Physics Department,Ocean University of China,Qingdao 266100);Inverse beamfoming applied to circle array[J];Applied Acoustics;2007-02
【Co-citations】
Chinese Journal Full-text Database 1 Hits
1 ZHANG Da-hai,YANG Kun-de,MA Yuan-liang(Acoustic Engineering Institute,Northwestern Polytechnical University,Xi’an 710072,China);Beampattern Optimization for Sensor Arrays Based on Covariance Matrix Weighting[J];Journal of System Simulation;2008-13
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 Yang Yixin, Sun Chao (Institute of Acoustics Engineering, Northwestern Polytechnical University, Xi'an 710072);High resolution direction estimation of circular array beam outputs[J];APPLIED ACOUSTICS;1999-06
China Proceedings of conference Full-text Database 1 Hits
1 WAN Xinwang GE Huiliang Wang Zhongkang GONG Xianyi (State Key Lab. Of Oceanic Acoustics, Hangzhou Applied Acoustics Research Institute,P.O.Box 1249,Hangzhou, China);Investigation of beamforming in background of platform generatednoise[A];[C];2001
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