A DOA Estimation Method for Uniform Circular Array Based on Virtual Interpolation and Subarray Rotation

被引：4
作者：
Liang, Tao [1 ,2 ,3 ]
Zhu, Min [1 ,3 ]
Pan, Feng [4 ]
机构：
[1] Chinese Acad Sci, Ocean Acoust Technol Ctr, Inst Acoust, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100190, Peoples R China
[3] Beijing Engn Technol Res Ctr Ocean Acoust Equipme, Beijing 100190, Peoples R China
[4] Chinese Acad Sci, Inst Informat Engn, Beijing 100093, Peoples R China
来源：
IEEE ACCESS | 2021年 / 9卷
关键词：
Array signal processing; Interpolation; Direction-of-arrival estimation; Estimation; Manifolds; Azimuth; Matrix decomposition; Direction of arrival (DOA); uniform circular array (UCA); virtual Interpolation; subarray rotation; OF-ARRIVAL ESTIMATION; ANGLE ESTIMATION; COPRIME ARRAY; ALGORITHM; MATRIX; ESPRIT; UCA;
D O I：
10.1109/ACCESS.2021.3106671
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A uniform linear array (ULA) or a multi-element planar array composed of uniform linear arrays is the main applied research array for direction-of-arrival (DOA) estimation in array signal processing. In recent years, the uniform circular array (UCA) is getting more attention because of its consistent azimuthal beam resolution, but the DOA estimation algorithm of a UCA is complex and difficult to implement. To solve this problem, a UCA positioning method based on virtual interpolation and subarray rotation (VISAR) is proposed. This method effectively reduces the computational complexity of DOA estimation for a UCA, and the simulation analysis of the algorithm shows that in terms of positioning performance, the proposed algorithm is better than the existing virtual interpolation algorithms in the case of a low signal-to-noise ratio (SNR).
引用
收藏
页码：116760 / 116767
页数：8
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