%0 Journal Article
%T Eigenspace-Based Linearly Constrained Minimum Variance Beamformer<br>基于特征空间的线性约束最小方差波束形成器
%A Zhao Yong-bo
%A Zhang Shou-hong
%A <br>赵永波
%A 张守宏
%J 电子与信息学报
%D 2005
%I 
%X By combining the Linearly Constrained Minimum Variance Beamformer(LCMVB) with the eigenspace-based beamformer, this paper presents the Eigenspace-based Linearly Constrained Minimum Variance Beamformer(ELCMVB). The ELCMVB first projects the presumed steering vector of the LCMVB onto the signal subspace, then gets the weight vector by using the LCMV and the projected steering vector. The theoretical analysis indicates that the ELCMVB outperforms the Generalized Eigenspace-based Beamformer(GEIB).Compared to the GEIB, the ELCMVB removes the computation of the modified signal subspace and overcomes the numerical instability. Null constraints hardly affect the performance of the ELCMVB. Computer simulation results are also presented and demonstrate the merits of the ELCMVB.
%K Adaptive beamforming
%K Array signal
%K Eigenspace
%K Linear constraint<br>自适应波束形成
%K 阵列信号
%K 特征空间
%K 线性约束
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=4E80483BE5D3A2DF&yid=2DD7160C83D0ACED&vid=DB817633AA4F79B9&iid=38B194292C032A66&sid=F27A401E323B6FAD&eid=BA48F0B914ED890A&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=5&reference_num=7