Estimation DOAs of the Coherent Sources Based on SVD

摘要：

An improved Method of DOA estimation in the presence of coherent signals is presented. First, using the eigenvector corresponding to the largest eigenvalue obtained from the received data covariance matrix, the presented method rebuilds a matrix, with which the auto-covariance matrix can be obtained. Then, we reconstruct a matrix using the equal of the obtained auto-covariance matrix and its complex-conjugation inversion. Thus, noise subspace can be gained by singular value decomposition. Afterwards, the direction parameters are estimated based on the MUSIC method. In comparison with the conventional decorrelation algorithms, the method offers better estimation performance for coherent sources, especially at low SNR and small snapshots. Simulation experiments demonstrate the effectiveness of the proposed method for estimation DOAs of the coherent sources.

关键词： SVD coherent sources direction of arrival (DOA) covariance matrix

作者: Jie Zhang Dengshan Huang Ping Huang Jun Kang

作者单位: School of Electronics and Information Northwestern Polytechnical University Xian, P.R.China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 1855-1858

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）