Threshold performance analysis of maximum likelihood DOA estimation

被引：30
|
作者：
Forster, P [1 ]
Larzabal, P
Boyer, E
机构：
[1] IUT Ville Davray, GEA, F-92410 Ville Davray, France
[2] ENS, CNRS, UMR 8029, SATIE, F-94235 Cachan, France
[3] Univ Paris Sud, IUT Cachan, CRIIP, F-94234 Cachan, France
来源：
IEEE TRANSACTIONS ON SIGNAL PROCESSING | 2004年 / 52卷 / 11期
关键词：
Cramer-Rao bound; lacunar array processing; low SNR; maximum likelihood estimation; performance analysis; threshold effects;
D O I：
10.1109/TSP.2004.836463
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 purpose of this paper is to investigate the nonasymptotic behavior of the maximum likelihood method in the context of lacunar array processing. We derive an analytical expression of the maximum likelihood mean square error, which is now valid for all signal-to-noise ratio (SNR) ranges. We also provide an analysis of the SNR threshold phenomena, which allows us to derive closed-form formulas for the threshold values. Computer simulations confirm the validity of the theoretical investigations.
引用
收藏
页码：3183 / 3191
页数：9
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