Title
Rearranged Coprime Array To Increase Degrees Of Freedom And Reduce Mutual Coupling
Abstract
Coprime array for direction of arrivals finding has attracted increasing interest since it can provide enhanced degrees of freedom. However, due to the holes in the difference coarray, the available information is not fully exploited. In this paper, we propose a rearranged coprime array configuration to fill the holes in the coprime difference coarray. The proposed new array allows filling the holes and reducing the mutual coupling effect at the same time. We classify all the holes in a holes-triangle as a design guideline for the proposed rearranged coprime array. Few redundant sensors of the generalized coprime array are rearranged at sparse positions, which are determined by the position of holes. By doing so, the consecutive part of the conventional coprime difference coarray can be significantly increased. Meanwhile, the mutual coupling can also be dramatically reduced because the redundant sensors are relocated at remote positions. Simulation results verify the superiority of the proposed array compared with other sparse arrays. (C) 2021 Elsevier B.V. All rights reserved.
Year
DOI
Venue
2021
10.1016/j.sigpro.2021.108038
SIGNAL PROCESSING
Keywords
DocType
Volume
Rearranged coprime array, Holes filling, Degrees of freedom, Mutual coupling
Journal
183
ISSN
Citations 
PageRank 
0165-1684
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Zhe Fu103.38
Pascal Chargé228628.34
Yide Wang333447.29