Wideband maximum likelihood direction finding and signal parameter estimation by using the tree-structured EM algorithm

被引：12
|
作者：
Cadalli, N
Arikan, O
机构：
[1] Univ Illinois, Coordinated Sci Lab, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA
[3] Bilkent Univ, Dept Elect & Elect Engn, TR-06533 Ankara, Turkey
来源：
IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1999年 / 47卷 / 01期
关键词：
array signal processing; EM algorithm; maximum likelihood estimation; signal parameter estimation; source localization; tree-structured EM algorithm; wideband direction finding;
D O I：
10.1109/78.738252
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：
The expectation maximization (EM) algorithm is presented for the case of estimating direction of arrivals of unknown deterministic wideband signals, Alternative regularized least squares estimation techniques for the required signal estimation and a tree structure for the data mapping in the Ehl algorithm are proposed. Extensive simulation results are presented for comparison of the proposed algorithms with the conventional EM approach and the current high-resolution methods of wideband direction finding.
引用
收藏
页码：201 / 206
页数：6
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