DIRECTION FINDING WITH TIME-VARYING ARRAYS

被引：29

作者：

ZEIRA, A ^{[1
]}

FRIEDLANDER, B ^{[1
]}

机构：

[1] UNIV CALIF DAVIS,DEPT ELECT & COMP ENGN,DAVIS,CA 95616

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1995年 / 43卷 / 04期

关键词：

D O I：

10.1109/78.376845

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：

This paper considers the problem of finding the directions of narrowband signals using a time-varying array, whose elements move during the observation interval in an arbitrary but known way. Assuming a Gaussian signal model, we derive the Cramer-Rao bound (CRB) and the maximum likelihood estimator for the directions of arrival. The single source case is studied in detail, Time-varying arrays are shown to be more robust to ambiguity errors than static arrays of comparable dimensions.

引用

页码：927 / 937

页数：11

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