An Preceding Method For Broadband Beamforming Using Subband Smooth In Array Domain

Heng Heng Quan,Xiao Nan Xu

2017 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, COMMUNICATIONS AND COMPUTING (ICSPCC)(2017)

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摘要
In beamforming, maximum likelihood estimation is used to estimate the covariance matrix by using the received data. In order to improve the estimation accuracy of covariance matrix and reduce noise, based on array domain, an preceding method for broadband beamforming using subband smooth is proposed which smoothes of each subband before the covariance matrix of the received data is estimated. The results show that the proposed method improves the SNR of the weak target and the display performance of the azimuth process map.
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关键词
Beamforming, snapshot smooth, weark target detection
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