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23.08.2024 | Short Paper

Dual-Sparse Parallel Nested Array for Two-Dimensional Direction of Arrival Estimation

verfasst von: Guojun Jiang, Jiacheng Huang, Yunlong Yang

Erschienen in: Circuits, Systems, and Signal Processing | Ausgabe 12/2024

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Abstract

In this paper, a novel dual-sparse parallel nested array (DS-PNA) is proposed for high-accuracy two-dimensional (2D) direction of arrival (DOA) estimation. The DS-PNA contains three subarrays, and the inter-antenna spacings of subarrays and those between subarrays are all enlarged with specific rates in 2D space (both of which are far larger than half-wavelength), for mutual coupling reduction and array aperture extension in physical array domain. Based on it, there is a systematic procedure to determine the number and positions of antennas in each subarray to achieve the maximum degrees of freedom in difference coarray domain, for improving the performance of DOA estimation. Numerical results are provided to demonstrate the superior performance of the DS-PNA for 2D DOA estimation over the state-of-the-art approaches, in the case of practical mutual coupling model.

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Metadaten
Titel
Dual-Sparse Parallel Nested Array for Two-Dimensional Direction of Arrival Estimation
verfasst von
Guojun Jiang
Jiacheng Huang
Yunlong Yang
Publikationsdatum
23.08.2024
Verlag
Springer US
Erschienen in
Circuits, Systems, and Signal Processing / Ausgabe 12/2024
Print ISSN: 0278-081X
Elektronische ISSN: 1531-5878
DOI
https://doi.org/10.1007/s00034-024-02816-w