Direction of Arrival Estimation by Matching Pursuit Algorithm with Subspace Information

doi:10.1109/ACCESS.2021.3050602

CIOMP OpenIR

	Direction of Arrival Estimation by Matching Pursuit Algorithm with Subspace Information
	Y. Zhao; S. Qin; Y.-R. Shi and Y.-W. Shi
	2021
发表期刊	IEEE Access
ISSN	21693536
卷号	9 期号:16937-16946
摘要	Traditional orthogonal matching pursuit (OMP) algorithms for direction of arrival (DOA) estimation suffer from poor angular resolution and noise suppression. In this paper, we analyze the reason why the OMP algorithm has difficulties in resolving closely separated DOAs and conclude that it lies in the rules of support detection. Moreover, we propose a solution to this problem via developing the connection between the sparse reconstruction class algorithm and the subspace algorithm from the structure of the redundant dictionary. Based on the framework of the matching pursuit (MP) algorithm, the effective information of the signal and noise subspaces is integrated, and a noise subspace reprojection orthogonal matching pursuit (NSRomp) algorithm for DOA estimation is proposed. By adopting signal subspaces to reconstruct the original signal, the proposed NSRomp can reduce both the influence of noise on the selection of the support set and the computing time. By implementing the minimum norm method to optimize the noise subspace into a vector, which corrects the selection rules of the support set during each iteration, the angular resolution of the proposed algorithm is improved. From the simulation results, when the signal to noise ratio (SNR) is lower than or near 0, the angular resolution can be improved by > 15 using OMP algorithms to by > 5 using the proposed NSRomp algorithm. 2013 IEEE.
DOI	10.1109/ACCESS.2021.3050602
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收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65176
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. Zhao,S. Qin,Y.-R. Shi and Y.-W. Shi. Direction of Arrival Estimation by Matching Pursuit Algorithm with Subspace Information[J]. IEEE Access,2021,9(16937-16946).
APA	Y. Zhao,S. Qin,&Y.-R. Shi and Y.-W. Shi.(2021).Direction of Arrival Estimation by Matching Pursuit Algorithm with Subspace Information.IEEE Access,9(16937-16946).
MLA	Y. Zhao,et al."Direction of Arrival Estimation by Matching Pursuit Algorithm with Subspace Information".IEEE Access 9.16937-16946(2021).

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