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- Title
Coherent direction of arrival estimation based on low‐rank matrix recovery utilising L<sub>2</sub>‐norm with moving coprime arrays.
- Authors
Yang, Youzhen; Wang, Jianhui; Cui, Weijia; Ba, Bin
- Abstract
In this article, an effective algorithm is proposed for direction‐of‐arrival (DOA) estimation of coherent signals using the l2‐norm with moving coprime arrays. The proposed algorithm exhibits high accuracy and robustness in decorrelation of coherent signals compared to existing methods. Firstly, the received signal is filtered on the moving coprime array and a signal model is constructed that is compatible with the moving coprime array. Next, virtual sensors is inserted into the holes of the moving coprime array and the received signals are initialised. Then, the Toeplitz matrix is reconstructed based on the covariance matrix of the initial signal and perform low‐rank matrix recovery to eliminate signal coherence by compensating the matrix for zero. Finally, the DOA estimation for the signal is performed using spectral peak search. Simulation results verify that the estimation accuracy of our proposed algorithm outperforms various existing algorithms.
- Subjects
DIRECTION of arrival estimation; LOW-rank matrices; TOEPLITZ matrices; COVARIANCE matrices; SIGNAL filtering
- Publication
IET Radar, Sonar & Navigation (Wiley-Blackwell), 2023, Vol 17, Issue 11, p1646
- ISSN
1751-8784
- Publication type
Article
- DOI
10.1049/rsn2.12454