%0 Journal Article
%T Fast Detection Algorithm for the Number of Signal Sources Based on Modified Hung-Turner Projection<br>基于修正Hung-Turner投影的快速信源数检测算法
%A Mu Jian-chao
%A Gao Mei-guo
%A Jiang Chang-yong
%A <br>牟建超
%A 高梅国
%A 江长勇
%J 电子与信息学报
%D 2010
%I 
%X Detection of the number of spatial signals is one of the key issues in array signal processing community. Most of the existing methods for detection of the number of signal sources require the eigenvalues of the sample covariance matrix. In this paper, a Fast Detection Method via Modified Hung-Turner Projection (FDM-MHTP) is proposed to dectect the number of multiple emitters, where a threshold is derived exploiting the asymptotic distribution properties of the estimation errors of the sample covariance matrix. The threshold is utilized to detect the number of signal sources in conjunction with performing Gram-Schmidt(GS) orthogonalization. Without eigenvalue decomposition, the algorithm has good detection performance and low computation complexity. Computer simulation shows the correctness and efficiency of the algorithm.
%K Array signal processing
%K Detection of the number of signals
%K Gram-Schmidt(GS) orthogonalization algorithm<br>阵列信号处理
%K 信源数检测
%K GS正交化算法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=2FFF0252CD379EF84A10B7C90C1DB925&yid=140ECF96957D60B2&vid=9971A5E270697F23&iid=0B39A22176CE99FB&sid=406BF8ED3BCE1927&eid=0954045FA0C6885F&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=20