Journal of Shanghai Jiaotong University ›› 2016, Vol. 50 ›› Issue (02): 188-193.

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Improved Bearing Resolution Approach for MVDR BeamForming

ZHENG Enming1,LI Yuansong2,CHEN Xinhua1,YU Huabing1,SUN Changyu1   

  1. (1. Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; 2. School of Computer Science, Sichuan University of Science and Engineering, Zigong 643000, Sichuan, China)
  • Online:2016-02-29 Published:2016-02-29

Abstract: Abstract: An approach was proposed to improve the minimum variance distortionless response (MVDR) beamforming bearing resolution by designing an enhancement factor in its weight vector which is known to be a principal factor in resolution improvement under a high signaltonoise ratio (SNR) condition. This method can provide improved bearing resolution not at the expense of the signaltonoise plus interference ratio gain. The simulation results show that this method can effectively improve the MVDR beamforming bearing resolution without losing the signaltonoise plus interference ratio gain.

Key words: Key words: minimum variance distortionless response (MVDR), beamforming (BF), bearing resolution

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