Two-dimensional DOA estimation with a staggered two-parallel linear array for reducing mutual coupling

In this paper, a two-dimensional (2D) direction of arrival (DOA) estimation algorithm with a staggered two-parallel linear array has been proposed. The proposed array consists of two staggered linear arrays, any one of which is determined by two consecutive positive integers. The distance between an...

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Bibliographic Details
Published inMultidimensional systems and signal processing Vol. 36; no. 1
Main Authors Liu, Sheng, Zhao, Jing, Wu, Decheng, Xiong, Weizhi, Xia, Linli, Tan, Wenbin
Format Journal Article
LanguageEnglish
Published New York Springer US 01.12.2025
Subjects
Artificial Intelligence
Circuits and Systems
Electrical Engineering
Engineering
Signal,Image and Speech Processing
DOA estimation
Staggered two-parallel linear array
Mutual coupling
PM
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Summary:In this paper, a two-dimensional (2D) direction of arrival (DOA) estimation algorithm with a staggered two-parallel linear array has been proposed. The proposed array consists of two staggered linear arrays, any one of which is determined by two consecutive positive integers. The distance between any two sensors of the proposed array can be larger than half-wavelength of incident signal, so it has strong robustness to mutual coupling. Using this array, a segmented propagator method (PM) algorithm is proposed to get automatic matching 2D DOA estimation. Compared with some similar PM algorithms based on a two-parallel linear array, the proposed segmented PM algorithm has higher estimation accuracy and approaching complexity. Not only that, the proposed algorithm can detect more signals than similar algorithms without using virtual elements. Complexity analysis and simulation results can prove the advantage of the proposed algorithm.
ISSN:0923-6082
1573-0824
DOI:10.1007/s11045-024-00894-2