Sparse symmetric linear arrays with low redundancy and a contiguous sum co-array

R Rajamäki, V Koivunen - IEEE Transactions on Signal …, 2021 - ieeexplore.ieee.org
Sparse arrays can resolve significantly more scatterers or sources than sensor by utilizing
the co-array-a virtual array structure consisting of pairwise differences or sums of sensor …

Symmetric flipped nested array for mixed near‐field and far‐field non‐circular source localisation

Y Wang, WJ Cui, B Ba, M Quan… - IET Radar, Sonar & …, 2022 - Wiley Online Library
As it is known, existing mixed near‐field and far‐field non‐circular source localisation rely on
the uniform linear array (ULA). Compared with the ULA, the sparse array can obtain more …

Design of relocating sparse nested arrays for DOA estimation of non-circular signals

L Zhou, Z Feng, K Ye, J Qi, S Hong - AEU-International Journal of …, 2024 - Elsevier
Recently, the ability of sparse arrays to achieve higher degrees of freedom (DOFs) and to be
less sensitive to the mutual coupling (MC) effect has aroused increasing attention. Aiming at …

Sparse array selection across arbitrary sensor geometries with deep transfer learning

AM Elbir, KV Mishra - IEEE Transactions on Cognitive …, 2020 - ieeexplore.ieee.org
Sparse sensor array selection arises in many engineering applications, where it is
imperative to obtain maximum spatial resolution from a limited number of array elements …

Optimized sparse nested arrays for DoA estimation of non-circular signals

N Mohsen, A Hawbani, X Wang, M Agrawal, L Zhao - Signal Processing, 2023 - Elsevier
The recent criteria for designing sparse arrays used in many applications are the number of
degrees of freedom (DoFs) and mutual coupling. In this paper, two optimized sparse nested …

A novel noncircular MUSIC algorithm based on the concept of the difference and sum coarray

Z Chen, Y Ding, S Ren, Z Chen - Sensors, 2018 - mdpi.com
In this paper, we propose a vectorized noncircular MUSIC (VNCM) algorithm based on the
concept of the coarray, which can construct the difference and sum (diff–sum) coarray, for …

A novel nested configuration based on the difference and sum co-array concept

Z Chen, Y Ding, S Ren, Z Chen - Sensors, 2018 - mdpi.com
Recently, the concept of the difference and sum co-array (DSCa) has attracted much
attention in array signal processing due to its high degree of freedom (DOF). In this paper …

Improved nested arrays with sum-difference coarray for DOA estimation

W Si, Z Peng, C Hou, F Zeng - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
In this paper, we propose two kinds of improved nested arrays for direction of arrival (DOA)
estimation, which are obtained by rearranging physical sensors of the prototype nested …

Sparse array design for DOA estimation of non-circular signals: Reduced co-array redundancy and increased DOF

X Zhang, X Lai, W Zheng, Y Wang - IEEE Sensors Journal, 2021 - ieeexplore.ieee.org
In the past decade, sparse arrays have aroused considerable attention for the ability to
provide larger array aperture, more degrees of freedom (DOFs) and better estimation …

Direct position determination of non-circular sources based on a Doppler-extended aperture with a moving coprime array

YK Zhang, HY Xu, B Ba, DM Wang, W Geng - IEEE Access, 2018 - ieeexplore.ieee.org
Direct position determination (DPD) is a new promising technique in wireless location.
Compared with conventional two-step localization methods, DPD achieves a higher …