Direction-of-Arrival Estimation of Coherent Signals via Coprime Array Interpolation
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 9044735 |
Pages (from-to) | 585-589 |
Journal / Publication | IEEE Signal Processing Letters |
Volume | 27 |
Online published | 23 Mar 2020 |
Publication status | Published - 2020 |
Link(s)
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.
In: IEEE Signal Processing Letters, Vol. 27, 9044735, 2020, p. 585-589.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review