Direction of Arrival by Non-Coherent Arrays

被引：0
|
作者：
Jiang, Wei [1 ]
Haimovich, Alexander M. [1 ]
Eldar, Yonina C. [2 ]
机构：
[1] NJ Inst Tech, Newark, NJ 07102 USA
[2] Technion, Haifa, Israel
来源：
2016 IEEE RADAR CONFERENCE (RADARCONF) | 2016年
关键词：
PHASE RETRIEVAL;
D O I：
暂无
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：
In previous work we have shown that non-coherent direction of arrival (DOA) estimation by an array of sensors may be implemented from magnitude-only measurements. Here we show that magnitude-only measurements collected by a sensor array may be modeled by a non-central chi-square distribution with mean and variance independent of the phase errors. We also develop a closed-form expression for the Cramer-Rao bound (CRB) of non-coherent DOA estimation for the difference in spatial frequency between two sources. Finally, we obtain closed-form expressions for the maximum likelihood estimates (MLEs) of various unknown parameters. These theoretical expressions are used to analyze the performance of non-coherent DOA estimation.
引用
收藏
页码：1092 / 1097
页数：6
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