|本期目录/Table of Contents|

[1]秦 毅,陈向阳*.基于空间平滑算法的改进多重信号分类算法[J].武汉工程大学学报,2023,45(04):450-455.[doi:10.19843/j.cnki.CN42-1779/TQ.202303033]
 QIN Yi,CHEN Xiangyang*.Modified Multiple Signal Classification Algorithm Based onSpatial Smoothing Algorithm[J].Journal of Wuhan Institute of Technology,2023,45(04):450-455.[doi:10.19843/j.cnki.CN42-1779/TQ.202303033]
点击复制

基于空间平滑算法的改进多重信号分类算法(/HTML)
分享到:

《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
45
期数:
2023年04期
页码:
450-455
栏目:
机电与信息工程
出版日期:
2023-08-31

文章信息/Info

Title:
Modified Multiple Signal Classification Algorithm Based on
Spatial Smoothing Algorithm
文章编号:
1674 - 2869(2023)04 - 0450 - 06
作者:
秦 毅陈向阳*
武汉工程大学计算机科学与工程学院,湖北 武汉 430205
Author(s):
QIN YiCHEN Xiangyang*
School of Computer Science and Engineering,Wuhan Institute of Technology,Wuhan 430205,China

关键词:
解相干空间平滑奇异值分解多重信号分类算法
Keywords:
decorrelation spatial smoothing singular value decomposition multiple signal classification algorithm
分类号:
TN911
DOI:
10.19843/j.cnki.CN42-1779/TQ.202303033
文献标志码:
A
摘要:
为了提高传统解相干算法的估计精度,提出了一种基于空间平滑算法的改进多重信号分类算法。将空间平滑算法的子阵互相关产生的前向平滑修正矩阵和后向平滑修正矩阵与子阵自相关矩阵互相关产生的前向平滑修正矩阵和后向平滑修正矩阵分别相加,得到新的前向平滑矩阵和后向平滑矩阵,再通过矩阵分解法将新的前向平滑矩阵和后向平滑矩阵进行组合,使用奇异值分解对组合后的矩阵进行分解得到信号的噪声子空间,并通过多重信号分类算法进行估计,最大限度的利用了前向平滑修正矩阵和后向平滑修正矩阵的信息。经过仿真验证,该算法在信号相干条件下能精确地估计入射角度,并且对比现有的解相干算法在信噪比相同条件下估计性能提升了9%。

Abstract:
To improve the estimation accuracy of traditional decorrelation algorithms,an modified multiple signal classification algorithm was proposed based on a spatial smoothing algorithm. The forward smoothing correction matrix and the backward smoothing correction matrix,generated by the subarray cross-correlation and cross-correlation of the subarray autocorrelation matrix of the spatial smoothing algorithm,were respectively added to obtain new forward and backward smoothing matrixes,which were then combined by matrix decomposition approach,after that,the combined matrixes were decomposed by singular value decomposition,and the noise subspace of the signals was obtained,which maximizes the information of the forward and backward smoothing correction matrixes through estimation of the multiple signal classification algorithm. It is verified that this algorithm can accurately estimate the incident angles under signal coherence conditions,and its performance is improved by 9% compared with that of the existing decorrelation algorithms under the same signal-to-noise ratio conditions.

参考文献/References:

[1] 宋聪,黎杨. 调频广播外辐射源雷达中的目标方向估计方法[J]. 武汉工程大学学报,2021,43(3):338-343.

[2] 王家珂,吴云韬,巩朋成. 基于改进传播算子的双基地多输入多输出雷达参数估计[J]. 武汉工程大学学报,2022,44(2):209-212.
[3] DI A Z. Multiple source location:a matrix decomposi-tion approach[J]. IEEE Transactions on Acoustics,Speech,and Signal Processing,1985,33(4):1086-1091.
[4] CADZOW J A, KIM Y S, SHIUE D C. General direction-of-arrival estimation:a signal subspace approach[J]. IEEE Transactions on Aerospace and Electronic Systems,1989,25(1):31-47.
[5] 高世伟,保铮. 利用数据矩阵分解实现对空间相关信号源的超分辨处理[J]. 通信学报,1988,9(1):4-13.
[6] COZZENS J H,SOUSA M J. Source enumeration in a correlated signal environment[J]. IEEE Transactions on Signal Processing,1994,42(2):304-317.
[7] SHAN T J, KAILATH T. Adaptive beamforming for coherent signals and interference[J]. IEEE Transactions on Acoustics,Speech,and Signal Process-ing,1985,33(3):527-536.
[8] SHAN T J ,WAX M ,KAILATH T. On spatial smoothing for direction-of-arrival estimation of coherent signals[J]. IEEE Transactions on Acoustics,Speech,and Signal Processing,1985,33(4):806-811.
[9] WILLIAMS R T,PRASAD S,MAHALANABIS A K,et al. An improved spatial smoothing technique for bearing estimation in a multipath environment[J]. IEEE Transactions on Acoustics,Speech,and Signal Processing,1988,36(4):425-432.
[10] 张辰锐,王剑书,雷涛. 一种准平稳相干信号的 DOA 估计算法[J]. 计算机应用与软件,2018,35(7):76-80.
[11] 蔡晶晶,宗汝,蔡辉. 基于空域平滑稀疏重构的 DOA 估计算法[J]. 电子与信息学报,2016,38(1):168-173.
[12] 石要武,陈淼,单泽涛,等. 基于特征空间 MUSIC 算法的相干信号波达方向空间平滑估计[J]. 吉林大学学报(工学版),2017,47(1):268-273.
[13] DU W X,KIRLIN R L. Improved spatial smoothing techniques for DOA estimation of coherent signals[J]. IEEE Transactions on Signal Processing,1991,39(5):1208-1210.
[14] 董玫,张守宏,吴向东,等. 一种改进的空间平滑算法[J]. 电子与信息学报,2008,30(4):859-862.
[15] 陈文锋,吴桂清. 基于空间平滑 MUSIC算法的相干信号DOA估计[J]. 计算机应用与软件,2017,34(11):232-235,283.
[16] 孙志国,柏乔森,白永珍,等. 基于虚拟阵列扩展的改进加权空间平滑算法[J]. 系统工程与电子技术,2023,45(1):250-256.
[17] 胡爽,黄鹏,蒋凯,等. 基于TLS-ESPRIT的改进空间平滑相干信号DOA估计算法[J]. 智能计算机与应用,2023,13(1):208-212.
[18] PAN J J, SUN M, WANG Y D, et al. An enhanced spatial smoothing technique with ESPRIT algorithm for direction of arrival estimation in coherent scenarios[J]. IEEE Transactions on Signal Process-ing,2020,68:3635-3643.

相似文献/References:

备注/Memo

备注/Memo:
收稿日期:2023-03-25
基金项目:湖北省教育厅计划项目(B2021083);武汉工程大学教研项目(X2015035,X2021029)
作者简介:秦 毅,硕士研究生。E-mail:1434481925@qq.com
*通讯作者:陈向阳,硕士,副教授。E-mail:04005074@wit.edu.cn
引文格式:秦毅,陈向阳. 基于空间平滑算法的改进多重信号分类算法 [J]. 武汉工程大学学报,2023,45(4):450-455.
更新日期/Last Update: 2023-08-31