[HTML][HTML] Research progress on coprime array signal processing: Direction-of-arrival estimation and adaptive beamforming

Z Chengwei, Z Hang, GU Yujie, W Yong, SHI Zhiguo - 雷达学报, 2019 - radars.ac.cn
Array signal processing is an essential tool in broad radar applications. The coprime array
has recently been proposed to overcome the bottleneck caused by the Nyquist spatial …

Fast direction-of-arrival estimation in coprime arrays

W Baxter, E Aboutanios - 2018 International Conference on …, 2018 - ieeexplore.ieee.org
We present a fast direction-of-arrival (DOA) estimation algorithm for coprime array structures.
In many practical applications of radar signals processing, reducing the redundancy …

Improved two-dimensional DOA estimation using parallel coprime arrays

S Qin, YD Zhang, MG Amin - Signal processing, 2020 - Elsevier
The conventional coprime array consists of two uniform linear subarrays to construct an
effective difference coarray with desirable characteristics. Such linear coprime arrays only …

Sparsity-based two-dimensional DOA estimation for coprime array: From sum–difference coarray viewpoint

J Shi, G Hu, X Zhang, F Sun… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
This paper addresses the issue of two-dimensional (2-D) direction of arrival (DOA)
estimation with coprime planar arrays (CPPAs) via sparse representation. Our work differs …

Nested arrays: A novel approach to array processing with enhanced degrees of freedom

P Pal, PP Vaidyanathan - IEEE Transactions on Signal …, 2010 - ieeexplore.ieee.org
A new array geometry, which is capable of significantly increasing the degrees of freedom of
linear arrays, is proposed. This structure is obtained by systematically nesting two or more …

Passive beamforming with coprime arrays

G Di Martino, A Iodice - IET Radar, Sonar & Navigation, 2017 - Wiley Online Library
Coprime arrays have been recently proposed as effective sparse configurations suitable for
radar beamforming and angle‐of‐arrival estimation applications. In this study, a new …

Adaptive beamforming algorithm for coprime array based on interference and noise covariance matrix reconstruction

Y Du, H Xu, W Cui, C Jian… - IET Radar, Sonar & …, 2022 - Wiley Online Library
Compared with the uniform linear array (ULA) under the same physical array element, the
coprime array can obtain a higher degree of freedom and a larger array aperture, so it has …

A robust and efficient algorithm for coprime array adaptive beamforming

C Zhou, Y Gu, S He, Z Shi - IEEE Transactions on Vehicular …, 2017 - ieeexplore.ieee.org
Coprime array offers a larger array aperture than uniform linear array with the same number
of physical sensors, and has a better spatial resolution with increased degrees of freedom …

DOA estimation based on multi-resolution difference co-array perspective

J Liu, Y Zhang, Y Lu, W Wang - Digital Signal Processing, 2017 - Elsevier
This paper presents two kinds of K-level co-prime linear array geometries and the
corresponding direction of arrival estimation algorithm based on the multi-resolution …

Co-prime array processing with sum and difference co-array

X Wang, X Wang, X Lin - 2015 49th Asilomar Conference on …, 2015 - ieeexplore.ieee.org
Among various sparse-array techniques, co-prime array is found to be more attractive
because of its high efficiency and simplicity. In this paper, we propose a scheme that can …