IMPROVED ANGULAR RESOLUTION FOR SPATIAL SMOOTHING TECHNIQUES

被引：52
|
作者：
LI, J [1 ]
机构：
[1] OHIO STATE UNIV,DEPT ELECT ENGN,COLUMBUS,OH 43210
来源：
IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1992年 / 40卷 / 12期
关键词：
D O I：
10.1109/78.175754
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：
Spatial smoothing techniques are used to estimate the directions of coherent arrivals. The performance of these techniques deteriorates rapidly as the coherent arrivals become closely spaced. In this correspondence, we examine the resolution performance of the existing forward-only and forward/backward spatial smoothing techniques. We also show that the resolution for coherent signals can be improved by squaring array covariance matrices before forming smoothed array covariance matrices.
引用
收藏
页码：3078 / 3081
页数：4
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