Spatial smoothing for direction of arrival estimation of coherent signals in the presence of unknown mutual coupling

被引：53
|
作者：
Dai, J. [1 ]
Ye, Z. [1 ]
机构：
[1] Univ Sci & Technol China, Dept Elect Engn & Informat Sci, Hefei 230027, Anhui, Peoples R China
来源：
IET SIGNAL PROCESSING | 2011年 / 5卷 / 04期
关键词：
UNIFORM LINEAR-ARRAY; DOA ESTIMATION; ANTENNA-ARRAYS; MULTIPATH; ALGORITHM;
D O I：
10.1049/iet-spr.2008.0100
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：
There is rarely a method that can deal with the direction of arrival (DOA) estimation of coherent signals in the presence of unknown mutual coupling. Based on the special structure of mutual coupling matrix for uniform linear array (ULA), an improved spatial smoothing algorithm for DOA estimation of coherent signals is proposed. The DOAs can be accurately estimated without any calibration sources since the effects of mutual coupling can be eliminated by the inherent mechanism of the proposed algorithm. Simulation results demonstrate the effectiveness of the algorithm.
引用
收藏
页码：418 / 425
页数：8
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