适用于单快拍的多重信号分类改进算法

doi:10.13229/j.cnki.jdxbgxb20170204

吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (3): 952-956.doi: 10.13229/j.cnki.jdxbgxb20170204

适用于单快拍的多重信号分类改进算法

陈涛, 崔岳寒, 郭立民

哈尔滨工程大学信息与通信工程学院,哈尔滨 150001;

收稿日期:2017-03-08 出版日期:2018-05-20 发布日期:2018-05-20
通讯作者: 郭立民(1977-),男,副教授,博士.研究方向:宽带信号检测、处理与识别.E-mail:guolimin@hrbeu.edu.cn
作者简介:陈涛(1974-),男,教授,博士.研究方向:宽带信号检测、处理与识别.E-mail:chentao@hrbeu.edu.cn
基金资助:
国家自然科学基金项目(61571146); 中央高校基本科研业务费专项资金项目(HEUCFP201769).

Improved algorithm of multiple signal classification for single snapshot

CHEN Tao, CUI Yue-han, GUO Li-min

College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001,China

Received:2017-03-08 Online:2018-05-20 Published:2018-05-20

摘要/Abstract

摘要： 经典多重信号分类(MUSIC)算法的子空间估计以多快拍数据估计得到的协方差矩阵为基础,在实际应用中,可用的快拍数并不确定。针对这一问题,本文提出了一种适用于单快拍的MUSIC改进算法,即ISS-MUSIC算法。该算法对经典MUSIC测向方法进行了改进,将伪协方差矩阵构造法与共轭增强法相结合。新算法的优点为适用于单快拍,且性能优于未进行共轭增强的基于伪协方差矩阵单快拍MUSIC算法。

关键词: 信息处理技术, 阵列信号处理, 波达方向估计, 单快拍, 经典多重信号分类算法

Abstract: The classical MUSIC algorithm based on the subspace estimation is dependent on covariance matrix estimation, which is built from a lot of snapshots. However, the number of the available snapshots is indeterminacy in the practical application. In order to solve the problem, we propose an improved MUSIC algorithm for single snapshot, called ISS-MUSIC algorithm. This algorithm improves the performance of the classical MUSIC algorithm, and it combines the method of constructing pseudo-covariance and the method of conjugate enhancement. The advantage of ISS-MUSIC algorithm is that it can be used in the case of single snapshot. Meanwhile, its performance outperforms the method of single snapshot MUSIC algorithm based on pseudo-covariance without enhancing conjugate.

Key words: information processing technology, array signal processing, direction of arrival(DOA) estimation, single snapshot, classical multiple signal classification (MUSIC) algorithm

中图分类号:

TN971.1

陈涛, 崔岳寒, 郭立民. 适用于单快拍的多重信号分类改进算法[J]. 吉林大学学报(工学版), 2018, 48(3): 952-956.

CHEN Tao, CUI Yue-han, GUO Li-min. Improved algorithm of multiple signal classification for single snapshot[J]. 吉林大学学报(工学版), 2018, 48(3): 952-956.

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适用于单快拍的多重信号分类改进算法

Improved algorithm of multiple signal classification for single snapshot

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