Virtual Array-Based Spatial Smoothing Method for Direction Finding of Coherent Signals

ZHANG Cong; HU Mou-fa; LU Huan-zhang; BR

您当前的位置：

首页 >

文章列表页 >

Virtual Array-Based Spatial Smoothing Method for Direction Finding of Coherent Signals

更新时间：2025-07-16

- Virtual Array-Based Spatial Smoothing Method for Direction Finding of Coherent Signals
- Acta Electronica Sinica Vol. 38, Issue 4, Pages: 929-0933(2010)
- 作者机构：
  
  （国防科学技术大学电子科学与工程学院，）,湖南,长沙,410073
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
移动端阅览
ZHANG Cong, HU Mou-fa, LU Huan-zhang, et al. Virtual Array-Based Spatial Smoothing Method for Direction Finding of Coherent Signals[J]. Acta Electronica Sinica, 2010, 38(4): 929-0933.
DOI：

ZHANG Cong, HU Mou-fa, LU Huan-zhang, et al. Virtual Array-Based Spatial Smoothing Method for Direction Finding of Coherent Signals[J]. Acta Electronica Sinica, 2010, 38(4): 929-0933. DOI：

摘要

<FONT face=Verdana>针对相干共轭循环平稳信号的DOA估计问题，提出了一种基于虚拟阵列前后向空间平滑的方法。该方法利用特定阵元输出间共轭循环相关函数的多时延采样，构造出与真实线阵阵元具有一一对应关系的虚拟阵列，并将空间平滑技术应用于该虚拟阵列实现了相干信号DOA估计。理论分析和仿真结果均表明，与FBSS-CCMUSIC算法和CCHAM算法相比，本文方法避免了最优时延选择问题，并获得了更高的DOA估计精度，同时，对信号不同入射方向也具有较好的稳健性。此外，该方法也可推广用于具有循环平稳特性的信号。

Abstract

<FONT face=Verdana>This paper investigates the direction-of-arrival (DOA) estimation of coherent sources with conjugate cyclostationary properties. A virtual array-based forward backward spatial smoothing method is proposed. By properly applying multiple lag conjugate cyclic correlation functions of specified sensor outputs

a virtual array is constructed first. Based on which

the spatial smoothing technique is then introduced to estimate the DOAs of all the signals of interest. Theoretical analysis and experimental results demonstrate that

compared with the FBSS-based Conjugate Cyclic MUSIC and Conjugate Cyclic Hankel Approximation method

the proposed algorithm not only avoids the optimal lag choosing problem

but also achieves better performance in estimation accuracy. Besides

this method is robust against the difference in signal DOAs. In addition

the proposed method can also be applied to the signals with cyclostationary properties.

关键词

Keywords

references

Views

2050

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Virtual Spatial Smoothing Algorithm

An Accurate DOA Estimation Method for mmWave Large-Scale Antenna Arrays

Joint Estimation of Carrier Frequency and DOA Based on the MR-MWC System

A Target Azimuth Estimation Method Based on Complex Domain Compressed Sensing

Near-Field Sources Localization Based on Sparse Signal Reconstruction

Related Author

LIU Zhi-gang

WANG Jin-kuan

WANG Fu-li

YIN Peng

LIU De-kang

ZHENG Chen

DING Xu-hui

FAN Xing-yu

Related Institution

School of Information Science Information and Engineering,Northeastern University

School of Cyber Security, University of Chinese Academy of Sciences

Defence Industry Secrecy Examination and Certification Center

Institute of Unmanned System, Beihang University

School of Information and Electronics, Beijing Institute of Technology

⁰