Direction of Arrival Estimation by Matching Pursuit Algorithm with Subspace Information

doi:10.1109/ACCESS.2021.3050602

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	Direction of Arrival Estimation by Matching Pursuit Algorithm with Subspace Information
	Y. Zhao; S. Qin; Y.-R. Shi and Y.-W. Shi
刊名	IEEE Access
	2021
卷号	9 期号:16937-16946
ISSN号	21693536
DOI	10.1109/ACCESS.2021.3050602
英文摘要	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.
URL标识	查看原文
内容类型	期刊论文
源URL	[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).