基于均匀同心圆阵列的近场宽带信号DOA估计

孟子健; 陈海华

Chinese

您当前的位置：

首页 >

文章列表页 >

基于均匀同心圆阵列的近场宽带信号DOA估计

更新时间：2026-09-04

- 基于均匀同心圆阵列的近场宽带信号DOA估计
- Near-field broadband signal DOA estimation based on uniform concentric circular array
- 微电子学与计算机 2020年37卷第8期页码：10-15
- 作者机构：
  
  1. 南开大学电子信息与光学工程学院,天津,300350
  2. 天津市光电传感器与传感网络技术重点实验室,天津,300351
- 作者简介：
- 基金信息：
  
  国家自然科学基金 61841108
- DOI：
  中图分类号：
- 纸质出版：2020
- 稿件说明：
移动端阅览
孟子健, 陈海华. 基于均匀同心圆阵列的近场宽带信号DOA估计[J]. 微电子学与计算机, 2020, 37(8): 10-15.

MENG Zi-jian, CHEN Hai-hua. Near-field broadband signal DOA estimation based on uniform concentric circular array[J]. 2020, 37(8): 10-15.
孟子健, 陈海华. 基于均匀同心圆阵列的近场宽带信号DOA估计[J]. 微电子学与计算机, 2020, 37(8): 10-15. DOI：

MENG Zi-jian, CHEN Hai-hua. Near-field broadband signal DOA estimation based on uniform concentric circular array[J]. 2020, 37(8): 10-15. DOI：

摘要

本文提出了一种基于频率响应不变同心圆阵列(Uniform Concentric Circular Array，UCCA)的近场宽带信号源到达角(Direction-of-Arrival，DOA)估计方法.该方法的基本原理是利用离散傅里叶逆变换(IDFT)将接收信号转换至相位模式，然后利用近场补偿因子进行滤波，以修正近场效应带来的信号畸变.经近场修正后的各路相位模式信号还将配备一个有限长响应(FIR)滤波器，以达到阵列响应频率不变的特性.通过上述处理后的近场宽带阵列信号则具有频率不变远场阵列响应的特点，因而可借鉴远场窄带波束形成设计方法设计阵列响应.设计例子表明，相较于其它近场宽带阵列方法，本文基于UCCA近场宽带频率响应不变阵列的DOA估计在性能上有显著提高.

Abstract

This paper proposes a near-field broadband directional-of-arrival (DOA) estimation method using frequency-invariant uniform concentric circular array (UCCA). The principle of the method is to use inverse discrete Fourier transform (IDFT) to convert the received signal to phase mode signals

which are then multiplied by near-field compensation factors to rectify the signal distortion caused by the near-field effect. The resultant phase mode signals are then filtered by a series of finite impulse response (FIR) filters to get frequency invariant response of the array. The proposed near-field broadband UCCA is of frequency-invariant far-field response

which make it possible that the method of far-field narrowband DOA estimation method can be extended to the near-field broadband case. The design example shows that the DOA estimation using the proposed near-field frequency-invariant UCCA has a significant performance improvement over several other methods.

关键词

Keywords

references

CHAN S C, CHEN H H. Uniform Concentric Circular Arrays With Frequency-Invariant Characteristics—Theory, Design, Adaptive Beamforming and DOA Estimation [J]. IEEE Transactions on Signal Processing. 2007.55(1): 165-177. DOI: 165

PALMESE M, TRUCCO A. An efficient digital czt beamforming design for near-field 3-d sonar imaging [J]. IEEE Journal of Oceanic Engineering. 2010, 35(3): 584-594. DOI: 584

New York ABRAMOWITZ M, STEGUN I A. Handbook of Mathemathical Functions [M]. New York: Dover, 1965: 355-388. DOI: 355

MARKOVICH S, GANNOT S, COHEN I. Multichannel eigenspace beamforming in a reverberant noisy environment with multiple interfering speech signals [J]. IEEE Transactions on Audio, Speech, and Language Processing. 2009, 17(6): 1071-1086. DOI: 1071

FROST O L. An Algorithm for Linearly Constrained Adaptive Array Processing [J]. Proceedings of the IEEE. 1972, 60(8): 926-935. DOI: 926

Hoboken, NJ LIU W, WEISS S. Wideband Beamforming: Concepts and Techniques [M]. Hoboken, NJ: Wiley, 2010: 19-60. DOI: 19

WARD D B, KENNEDY R A, WILLIAMSON R C. Theory and design of broadband sensor arrays with frequency invariant far-field beam patterns [J]. Journal of the Acoustical Society of America. 1995.97(2): 1023-1034. DOI: 1023

FUHRMANN D R, ANTONIO G S. Transmit beamforming for MIMO radar system using signal correlation [J]. IEEE Trans. Aerosp. Electron. Syst, 2008, 44(1): 1-16. DOI: 1

SCHMIDT R O. Multiple Emitter Location and Signal Parameter Estimation [J]. IEEE Transactions on Antennas and Propagation. 1986. AP-34(3): 276-280. DOI: 276

VAN VEEN B D, BUCKLEY K M. Beamforming: A Versatile Approach to Spatial Filtering [J]. IEEE Assp Magazine. 2002.5(2): 4-24. DOI: 4

CHAN S C, PUN C K S. On the Design of Digital Broadband Beamformer for Uniform Circular Array with Frequency Invariant Characteristics [J]. IEEE. Int. Symp. Circuits Systems (ISCAS). 2002.55(1): 693-696. DOI: 693

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

面向处理器分支预测单元的Spectre攻击轻量化防御方法

基于区块链的AI生成内容溯源框架设计研究

基于监控指标关联性的微服务异常检测

基于MSS-YOLO-MPHands融合架构的装配手部动作识别研究

V型沟槽SiC中子探测器的蒙特卡洛分析