Sparse DOA estimation based on a shifted coprime array configuration

2016 ◽  
Author(s):  
Saeed M. Alamoudi ◽  
Mohammed A. Aldhaheri ◽  
Saleh A. Alawsh ◽  
Ali H. Muqaibel
Keyword(s):  
Doa Estimation ◽  
Array Configuration ◽  
Coprime Array

scholarly journals A Novel Designed Sparse Array for Noncircular Sources with High Degree of Freedom

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Yan-kui Zhang ◽  
Hai-yun Xu ◽  
Da-ming Wang ◽  
Bin Ba ◽  
Si-yao Li
Keyword(s):  
Design Method ◽  
Doa Estimation ◽  
Degree Of Freedom ◽  
Estimation Accuracy ◽  
Sparse Array ◽  
Array Configuration ◽  
Virtual Array ◽  
Array Aperture ◽  
Coprime Array ◽  
High Degree

The existing coprime array is mainly applicable to circular sources, while the virtual array degree of freedom (DOF) for noncircular sources is enhanced limitedly. In order to perfect the array DOF and the direction of arrival (DOA) estimation accuracy, a high degree of freedom sparse array design method for noncircular sources is put forward. Firstly, the method takes the advantages of the characteristic of the noncircular sources to expand the array manifold and then explores and solves the location distribution of the physical array sensors on the basis of the virtual array model with the help of the searching approach. The array configuration can obtain the longest continuous virtual array. The comparisons between the proposed array configuration and the common array configurations are advanced. The simulation experiments show that the sparse array presented in this paper can effectively increase the continuous virtual array aperture of noncircular sources, improve the array DOF and DOA estimation accuracy, and achieve the purpose of better estimation of multiple DOAs in underdetermined conditions.

scholarly journals DOA Estimation based on the Optimized Coprime Array Configuration

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 38789-38797 ◽  
Author(s):  
Ahmed Mohammed Ahmed Shaalan ◽  
Xiangyu Yu
Keyword(s):  
Doa Estimation ◽  
Array Configuration ◽  
Coprime Array

Hole-Free Coprime Array for DOA Estimation: Augmented Uniform Co-array

2020 ◽  
pp. 1-1
Author(s):  
Penghui Ma ◽  
Jianfeng Li ◽  
Fan Xu ◽  
Zhang Xiaofei
Keyword(s):  
Doa Estimation ◽  
Coprime Array

DOA estimation in the presence of unknown non‐uniform noise with coprime array

2017 ◽  
Vol 53 (2) ◽  
pp. 113-115 ◽  
Author(s):  
Ye Tian ◽  
Hongyin Shi ◽  
He Xu
Keyword(s):  
Doa Estimation ◽  
Uniform Noise ◽  
Coprime Array

Two-Dimensional Off-Grid DOA Estimation Using Unfolded Parallel Coprime Array

2018 ◽  
Vol 22 (12) ◽  
pp. 2495-2498 ◽  
Author(s):  
Jianfeng Li ◽  
Yunxiang Li ◽  
Xiaofei Zhang
Keyword(s):  
Doa Estimation ◽  
Two Dimensional ◽  
Coprime Array

scholarly journals Extended Coprime Array Configuration Generating Large-Scale Antenna Co-Array in Massive MIMO System

2019 ◽  
Vol 68 (8) ◽  
pp. 7841-7853 ◽  
Author(s):  
Wang Zheng ◽  
Xiaofei Zhang ◽  
Yunfei Wang ◽  
Mengjie Zhou ◽  
Qihui Wu
Keyword(s):  
Massive Mimo ◽  
Large Scale ◽  
Mimo System ◽  
Array Configuration ◽  
Coprime Array
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