%0 Journal Article
%T DOA Estimation of Coherent Signals Using one Snapshot<br>采用单次快拍数据实现相干信号DOA估计
%A Xie Xin Li Guo-lin Liu Hua-wen
%A <br>谢鑫
%A 李国林
%A 刘华文
%J 电子与信息学报
%D 2010
%I 
%X A new decorrelation algorithm based on one single snapshot is proposed for Direction-Of-Arrival (DOA) estimation of coherent signals on a ULA, which reconstructs a Toeplitz matrix using the observed data vector directly. It is proved that the rank of this Toeplitz matrix is determined merely by the number of incident sources and has no relations with the coherency of the signals. Then accurate signal subspace and noise subspace can be acquired by performing eigenvalue decomposition of the matrix. Combined with the subspace kind algorithms such as MUSIC and ESPRIT, the DOA of coherent signals can be estimated. Simulation results verify that the proposed algorithm is effective.
%K DOA estimation
%K Coherent signals
%K Toeplitz matrix<br>DOA估计
%K 相干信号
%K Toeplitz矩阵
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=86781F600716CAA76CCCD723A48FDECC&yid=140ECF96957D60B2&vid=9971A5E270697F23&iid=38B194292C032A66&sid=1A0C7C60D40EFD74&eid=C7B13290323C226E&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=13