SIGNAL ENHANCEMENT OF THE SPATIAL SMOOTHING ALGORITHM

被引：5
|
作者：
MOGHADDAMIOO, A
CHANG, TC
机构：
[1] Department of Electrical Engineering and Computer Science, University of Wisconsin-Milwaukee, Milwaukee
来源：
IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1991年 / 39卷 / 08期
关键词：
D O I：
10.1109/78.91164
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：
A spatial smoothing algorithm is developed to decorrelate highly correlated sources for direction-of-arrival (DOA) estimation in narrow-band problems. The rate of decorrelation of the coherent sources is very low and sensitive to the signal-to-noise ratio (SNR) for sources with close DOA's. In this correspondence, a method is proposed to enhance the signal (to remove the effects of the sensor noise) and to make the spatial smoothing robust with respect to SNR. This approach will significantly improve the resolution or the algorithm. Statistical characteristics of the improved spatial smoothing are compared with that of the standard spatial smoothing.
引用
收藏
页码：1907 / 1911
页数：5
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