Optimal modal beamforming for concentric circular arrays

被引：0

作者：

Han, Xinyu ^{[1
,2
]}

Wu, Ming ^{[1
,2
]}

Zhang, Guochang ^{[1
,2
]}

Yang, Jun ^{[1
,2
]}

Wang, Xiaotong ^{[3
]}

机构：

[1] Key Laboratory of Noise and Vibration Research, Institute of Acoustics, Beijing,100190, China

[2] University of Chinese Academy of Sciences, Beijing,100049, China

[3] Beijing Information Science and Technology University, Beijing,100192, China

来源：

Shengxue Xuebao/Acta Acustica | 2021年 / 46卷 / 04期

关键词：

Harmonic analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A modal beamformers design method for uniform concentric circular arrays is proposed. By deriving the expression of data model for the concentric circular arrays in circular harmonics domain, the equivalence between element-space and circular harmonics domain is established. Theoretical analysis shows minimum variance distortionless response beamformer against planarly isotropic noise field in the circular-harmonics-domain is equivalent to a phase- mode beamformer for uniform concentric circular arrays. Based on this conclusion, a method for optimizing the radius of concentric circular arrays is proposed. Simulation results show the excellent performance of the proposed beamformers and the effectiveness of the optimization method. © 2021 Acta Acustica.

引用

页码：564 / 575