循环平稳弱目标回波信号的盲抽取方法

doi:10.3969/j.issn.1001-2400.2016.02.010

西安电子科技大学学报 ›› 2016, Vol. 43 ›› Issue (2): 52-57.doi: 10.3969/j.issn.1001-2400.2016.02.010

循环平稳弱目标回波信号的盲抽取方法

朱昀1;王俊1;张各各2;王相入1

(1. 西安电子科技大学雷达信号处理国家重点实验室，陕西西安 710071;
2. 河南科技大学网络信息中心，河南洛阳 471023)

收稿日期:2014-11-30 出版日期:2016-04-20 发布日期:2016-05-27
作者简介:朱昀(1990-)，女，西安电子科技大学博士研究生，E-mail: zhuyun.xidian@gmail.com．
基金资助:
教育部创新团队计划资助项目(IRT0954)

Blind extraction of the weak cyclostationary echo signal

ZHU Yun1;WANG Jun1;ZHANG Gege2;WANG Xiangru1

(1. National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an 710071, China;
2. Network Information Center, Henan Univ. of Science and Technology, Luoyang 471023, China)

Received:2014-11-30 Online:2016-04-20 Published:2016-05-27

摘要/Abstract

摘要：

针对外辐射源雷达系统中弱目标回波信号淹没在强直达波、多径、干扰信号和噪声中的问题，提出一种基于循环平稳特性的弱目标回波信号盲抽取方法．该方法不需要参考通道，而是利用信号的谱线生成特性直接对回波通道信号进行抽取，通过迭代使输出信号中目标回波信号成分最大化，同时使其他信号和噪声成分最小化．与传统的外辐射源雷达目标回波信号获取方法相比，该方法不需要参考通道及杂波对消，既简化了接收机的结构，又减少了运算量．仿真实验验证了该方法的有效性．

关键词: 外辐射源雷达, 盲抽取, 循环平稳

Abstract:

To extract the weak echo signal buried in a strong direct signal, multipath signal, interfering signal and noise in passive radar systems, a new method is proposed based on cyclostationarity. The desired signal can be directly extracted from the echo channel without the reference channel based on the spectral line generating characteristics. Then, the component of the desired signal is maximized in an iterative way, while other signals and noise are minimized. Compared with the traditional methods, the proposed algorithm does not need the reference channel, which can simplify the structure of the receiver, and what's more, the computational burden is decreased. Simulation results verify the effectiveness of the proposed method.

Key words: passive radar system, blind source extraction, cyclostationarity

中图分类号:

TN958.97

朱昀;王俊;张各各;王相入. 循环平稳弱目标回波信号的盲抽取方法[J]. 西安电子科技大学学报, 2016, 43(2): 52-57.

ZHU Yun;WANG Jun;ZHANG Gege;WANG Xiangru. Blind extraction of the weak cyclostationary echo signal[J]. Journal of Xidian University, 2016, 43(2): 52-57.

参考文献

［1］ HOWLAND P E, MAKSIMIUK D, REITSMA G. FM Radio Based Bistatic Radar［J］. IEE Proceedings: Radar, Sonar and Navigation, 2005, 152(3): 107-115.
［2］张各各, 王俊, 刘玉春. 一种基于数字电视地面广播照射源的外辐射源雷达快速杂波相消算［J］. 电子与信息学报, 2013, 35(1): 36-40.
ZHANG Gege, WANG Jun, LIU Yuchun. A Fast Cancellation Algorithm for DTTB-based Passive Radar System［J］.Journal of Electronics ＆ Information Technology, 2013, 35(1): 36-40.
［3］张延良, 楼顺天, 张伟涛. 用于统计相关源信号的盲分离方法［J］. 西安电子科技大学学报, 2009, 36(3): 401-406.
ZHANG Yanliang, LOU Shuntian, ZHANG Weitao. Blind Source Separation Method Applicable to Dependent Sources［J］. Journal of Xidian University, 2009, 36(3): 401-406.
［4］ NESTA F, MATASSONI M. Blind Source Extraction for Robust Speech Recognition in Multisource Noisy Environments［J］. Computer Speech and Language, 2013, 27(3): 703-725.
［5］ WANG X, HUANG Z T, ZHOU Y Y, et al. Approaches and Applications of Semi-blind Signal Extraction Ffor Communication Signals Based on Constrained Independent Component Analysis: the Complex Case［J］. Neurocomputing, 2013, 101(4): 204-216.
［6］ ZHANG G G, WANG J, LI H W, et al. Improved Blind Source Extraction for Time Delay Estimate in Passive Coherent Location System［J］. Progress in Electromagnetics Research B, 2012, 37: 257-274.
［7］ YARLAGADDA P, CHOI S B, KIM Y H. Blind Complex Source Separation Based on Cyclostationary Statistics［J］. Applied Mechanics and Materials, 2014, 519(520): 1051-1056.
［8］ LU F B, ZHANG B S, HUANG Z T, et al. Blind Identification of Underdetermined Mixtures Using Second-order Cyclostationary Statistics［J］. Chinese Journal of Electronics, 2013, 22(1): 31-35.
［9］ NIKNAZAR M, BECKER H, RIVET B, et al. Blind Source Separation of Underdetermined Mixtures of Event-related Sources［J］. Elsevier Signal Processing, 2014, 101: 52-64.
［10］ GARDNER W A, NAPOLITANO A, PAURA L. Cyclostationarity: Half a Century of Research［J］. Elsevier Signal Processing, 2005, 86(2006): 639-697.
［11］ ABED-MERAIM K, YONG X, MANRON J H, et al. A New Approach to Blind Separation of Cyclostationary Sources［C］//Proceedings of 1999 2nd Workshop on Signal Processing Advances in Wireless Communications. Piscataway: IEEE, 1999: 114-117.
［12］柳征, 黄知涛, 周一宇. 调幅调频信号的循环平稳特性分析［J］. 系统工程与电子技术, 2002, 24(1): 21-27.
LIU Zheng, HUANG Zhitao, ZHOU Yiyu. Analysis of the Cyclostationary Properties of AM＆FM Signals［J］. Systems Engineering and Electronics, 2002, 24(1): 21-27.

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循环平稳弱目标回波信号的盲抽取方法

Blind extraction of the weak cyclostationary echo signal

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