%0 Journal Article
%T Robust Adaptive Beamforming In Spatially Colored Noise Fields<br>一种空间色噪声环境下的鲁棒自适应波束
%A Lin Jing-ran
%A Peng Qi-cong
%A Shao Huai-zong
%A Ju Tai-liang
%A <br>林静然
%A 彭启琮
%A 邵怀宗
%A 居太亮
%J 电子与信息学报
%D 2007
%I 
%X A novel robust adaptive beamforming based on diagonal loading is proposed in this paper, aiming at robustness against steering vector mismatches in spatially colored noise fields. The received data is prewhitened first according to the noise covariance, with a corresponding ellipsoidal steering vector uncertainty set defined at the same time. Then the loading level is determined based on worst-case performance optimization. Other than searching for the optimal loading by iteration, a simple closed-form solution is suggested after some approximations. Besides its low computational cost, the closed-form solution reveals how different factors affect the optimal loading. Numerical examples confirm the excellent performance of the proposed approach as well as the accurate approximation of the closed-form solution to the actual optimal loading.
%K Signal processing
%K Robust Adaptive BeamForming(RABF)
%K Spatially colored noise
%K Steering vector mismatches
%K Diagonal loading<br>信号处理
%K 鲁棒自适应波束
%K 空间色噪声
%K 方向矢量误差
%K 对角加载
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=0FADF85F4F7C05F05FE2B0F9D7227A03&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=59906B3B2830C2C5&sid=B15E352F2A5F8899&eid=F9510B5449D4E7A0&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=10