Direction-of-Arrival Estimation Based on the Joint Diagonalization Structure of Multiple Fourth-Order Cumulant Matrices

被引：39
|
作者：
Zeng, Wen-Jun [1 ]
Li, Xi-Lin [1 ]
Zhang, Xian-Da [1 ]
机构：
[1] Tsinghua Univ, Dept Automat, Beijing 100084, Peoples R China
来源：
IEEE SIGNAL PROCESSING LETTERS | 2009年 / 16卷 / 1-3期
基金：
中国国家自然科学基金;
关键词：
Correlated noise; direction-of-arrival; high-order cumulants; joint diagonalization; UNKNOWN NOISE FIELDS; ORDER STATISTICS; SIGNALS;
D O I：
10.1109/LSP.2008.2010816
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new algorithm for direction-of-arrival (DOA) estimation of non-Gaussian sources is proposed. Based on the joint diagonalization structure of multiple fourth-order cumulant matrices, a novel cost function is designed and a new spatial spectrum for direction finding at hand is derived. Unlike the subspace-based techniques, it is not necessary to determine the number of sources in advance for the proposed algorithm. Moreover, the proposed method is insensitive to the spatially correlated noise. Simulation results are provided to demonstrate the performance of the proposed approach.
引用
收藏
页码：164 / 167
页数：4
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