Maximum likelihood estimation for array processing in colored noise

被引：41

作者：

Nagesha, V ^{[1
]}

Kay, S ^{[1
]}

机构：

[1] UNIV RHODE ISL,DEPT ELECT ENGN,KINGSTON,RI 02881

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1996年 / 44卷 / 02期

关键词：

D O I：

10.1109/78.485914

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：

Direction of arrival estimation of multiple sources, using a uniform linear array, in noise with unknown covariance is considered. The noise is modeled as a spatial autoregressive process with unknown parameters. Both stochastic and deterministic signal models are considered. For the random signal case, an approximate maximum likelihood estimator of the signal and noise parameters is derived. It requires numerical maximization of a compressed likelihood function over the unknown arrival angles. Analytical expressions for the MLE's of the signal covariance and the AR parameters are given. Similar results for the case of deterministic signals are also presented.

引用

页码：169 / 180

页数：12

共 26 条

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