Direction-of-Arrival Estimation of Coherent Signals via Coprime Array Interpolation

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Article number9044735
Pages (from-to)585-589
Journal / PublicationIEEE Signal Processing Letters
Volume27
Online published23 Mar 2020
Publication statusPublished - 2020

Abstract

In this letter, we devise an efficient approach for estimating the directions-of-arrival (DOAs) of coherent signals using coprime arrays. Specifically, we firstly derive an augmented uniform linear array (ULA) via coprime array interpolation. Subsequently, we define a Toeplitz matrix that is formed using the correlation information of the interpolated ULA theoretical outputs, and recover the Toeplitz matrix by solving a nuclear norm minimization problem. After the low-rank Toeplitz matrix is recovered, the coherent signals are well resolved by the MUSIC algorithm. Simulation results demonstrate the advantages of the proposed approach over various existing methods when dealing with coherent signals.

Research Area(s)

  • coherent signals, coprime array, Direction-of-arrival (DOA) estimation, interpolated ULA, Toeplitz matrix

Citation Format(s)

Direction-of-Arrival Estimation of Coherent Signals via Coprime Array Interpolation. / Zheng, Zhi; Huang, Yixiao; Wang, Wen-Qin et al.
In: IEEE Signal Processing Letters, Vol. 27, 9044735, 2020, p. 585-589.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review