冲击噪声背景下的动态DOA跟踪

山东大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (1): 133-138.

冲击噪声背景下的动态DOA跟踪

赵大勇刁鸣杨丽丽陈超

哈尔滨工程大学信息与通信工程学院, 哈尔滨 150001

收稿日期:2009-03-24 出版日期:2010-02-16 发布日期:2009-03-24
通讯作者: 刁鸣(1960-)，男，山东龙口人，教授，博士生导师，主要研究方向为宽带信号检测与识别. E-mail:diaoming@hrbeu.edu.cn
作者简介:赵大勇(1974-),男,吉林长春人,博士研究生,主要研究方向为电子对抗技术. E-mail:zdy407@126.com
基金资助:
黑龙江省科技攻关资助项目(GZ08A101)

Dynamic DOA estimation in the presence of impulsive noise

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

Received:2009-03-24 Online:2010-02-16 Published:2009-03-24

摘要/Abstract

摘要：

针对冲击噪声背景下的动态DOA估计问题,提出了一种锁定跟踪思想及其实现公式,并对粒子群算法进行改进,研究了基于最大似然算法的动态DOA估计方法。该方法在避免分数低阶矩矩阵重复分解的同时,有效降低了多维搜索的计算量,并且具有良好的跟踪性能。仿真实验结果表明该方法的有效性。

关键词: 动态DOA估计;冲击噪声;相干信源;分数低阶矩

Abstract:

A new improvement was provided on a particle swarm optimization algorithm based on the idea of locking and tracking, and a new method based on the maximum likelihood algorithm for dynamic directionofarrival (DOA) estimation under impulsive noise environments was studied.This method can avoid the decompositions of the fractional lower order moments matrix which should be repeated in the methodsbased on subspace tracking, and perform better than the methods based on subspace tracking in the aspect of tracking precision. In addition the cost of the multidimensional search can be mostly reduced.

Key words: dynamic DOA estimation; impulsive noise; coherent signals; fractional lower order moment

赵大勇刁鸣杨丽丽陈超. 冲击噪声背景下的动态DOA跟踪[J]. 山东大学学报(工学版), 2010, 40(1): 133-138.

ZHAO Da-Yong, DIAO Ming, YANG Li-Li, CHEN Chao. Dynamic DOA estimation in the presence of impulsive noise[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2010, 40(1): 133-138.

参考文献

多维度评价

Viewed

Full text

Abstract

Cited

Shared

Discussed