A novel DOA estimation method for closely spaced multiple sources with large power differences

Yang Gao Yang Gao,Xin Jia Xin Jia,Teng Long Teng Long,Xiang-Gen Xia,Jia Xu Jia Xu

doi:10.1109/radar.2015.7131191

A novel DOA estimation method for closely spaced multiple sources with large power differences

Yang Gao Yang Gao, Xin Jia Xin Jia + Show 3 more

https://doi.org/10.1109/radar.2015.7131191

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Publication Date: May 1, 2015

Citations: 9

Affiliation: China Academy Of Machinery Science & Technology (China), University of Delaware, Beijing Institute of Technology

#Direction Of Arrival Estimation #Direction Of Arrival + Show 8 more

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Abstract

The direction of arrival (DOA) estimation is a key issue in array signal processing, and there are many well-known methods, e.g., Capon, MUSIC, Root-MUSIC and some other DOA estimation algorithms in the literature. Nevertheless, the effective DOA estimation for closely spaced multiple sources with large power differences is still a difficult problem due to the deteriorated resolution for the low power sources. In this paper, a novel DOA estimation method called Capon-MUSIC algorithm is proposed, which has a much higher resolution for closely spaced multiple sources with obvious power differences. Finally, some numerical experiments are provided to demonstrate the effectiveness of the proposed method.

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