Results 111 to 120 of about 35,203 (149)

A DOA Tracking Algorithm for Coprime Planar Array via PAST

2018 4th Annual International Conference on Network and Information Systems for Computers (ICNISC), 2018
Compared to traditional planar arrays, coprime planar arrays have more precise direction finding precision and higher degrees of freedom. As there is little research on DOA tracking of arbitrary dynamic targets in coprime arrays, a DOA tracking algorithm based on Projection Approximation Subspace Tracking (PAST) for coprime planar array is proposed. It
Meng-Jie Zhou, Chao Ge, Xin-Ping Lin, Lang He, Xiao-Fei Zhang   +4 more
openaire   +2 more sources

Recursive Extended Instrumental Variable Based LCMV Beamformers for Planar Radial Coprime Arrays Under Spatially Colored Noise

IEEE Transactions on Aerospace and Electronic Systems, 2021
This article proposes a new recursive linearly constrained minimum variance (LCMV) beamformer based on the extended instrumental variable (EIV) method for planar radial coprime arrays (PRCAs) under spatially colored noise. The proposed recursive LCMV beamformer is able to deal with multiple constraints with high precision and low complexity and can be ...
Jian-Qiang Lin, Shing-Chow Chan
openaire   +2 more sources

Two-Dimensional DOA Estimation via a Novel Sparse Array Consisting of Coprime and Nested Subarrays

IEEE Communications Letters, 2020
In this letter, a novel sparse array consisting of coprime and nested subarrays is designed and a corresponding two-dimensional (2-D) direction of arrival (DOA) estimation method is presented.
Weijian Si, Fuhong Zeng, Zhiyu Qu, Zhanli Peng   +3 more
semanticscholar   +3 more sources

Shift-Based Symmetric Coprime Planar Arrays With Increased Degrees of Freedom and Reduced Mutual Coupling

IEEE Transactions on Vehicular Technology
In the past decade, design of sparse planar arrays has increasingly become a focal point, driven by its superior performance in terms of degrees of freedom (DOFs) and anti-mutual-coupling effects compared to other uniform distributed planar arrays.
Zexiang Zhang, Qing Shen, Wei Liu, Kangning Li, Kejiang Wu, Wei Cui   +5 more
openaire   +2 more sources

Shift-Based Symmetric Coprime Planar Arrays for Direction Finding with Enhanced Uniform Degrees of Freedom

2024 IEEE/CIC International Conference on Communications in China (ICCC Workshops)
Recently, sparse planar arrays have attracted significant attention due to its advantage in underdetermined two-dimensional (2-D) direction of arrival (DOA) estimation.
Zexiang Zhang, Qing Shen, Wei Liu, Kangning Li, Kejiang Wu, Wei Cui   +5 more
openaire   +2 more sources

Sparsity-Based Two-Dimensional DOA Estimation for Coprime Array: From Sum–Difference Coarray Viewpoint

IEEE Transactions on Signal Processing, 2017
Junpeng Shi, Guoping Hu, Xiaofei Zhang, Fenggang Sun, Hao Zhou   +4 more
semanticscholar   +3 more sources

A Novel Approach of 2-D DOA Estimation by Employing Coprime Linear Array Motion

IEEE Communications Letters, 2022
In this letter, we explore the feature of coprime linear array (CLA) motion for enhanced array aperture and higher degree of freedom (DOF) by implementing synthetic aperture processing. Since the traditional fixed CLA cannot achieve two-dimensional (2-D)
Jianhong Chu, Zhi Zhang, Yuzhen Huang, Yu Guo   +3 more
semanticscholar   +1 more source

DOA Estimation using Planar Sparse Fractal Array

Symposium on Software Performance, 2023
The term fractal refers to the fractional dimensions that have recursive nature and when clubbed with the properties of sparse arrays leads to the generation of a novel array called a sparse fractal array.
Kretika Goel, M. Agrawal, Subrat Kar
semanticscholar   +1 more source

DOA estimation for enhanced coprime planar arrays via low-rank matrix completion and sparse regularization

Applied Acoustics
Zeqi Yang, Shuai Ma, Yiheng Liu, Hua Zhang, Xiaode Lyu   +4 more
openaire   +2 more sources

3D Non-Synchronous Measurements With Central Reference Based on Revolution and Autorotation of Spherical Microphone Array

IEEE Signal Processing Letters, 2023
The non-synchronous measurement (NSM) technology has been significantly developed. NSM at the coprime position (CP-NSM) is a measurement principle in two-dimensional (2D) acoustic imaging, wherein a planar array is moved to a coprime position for ...
Liang Yu, Huimin Liu, Ning Chu, A. Mohammad-Djafari, Weihua Yang   +4 more
semanticscholar   +1 more source