基于FCM聚类的雷达中频信号的运动目标检测

岳志新; 陈晓楠; 索继东

doi:10.16411/j.cnki.issn1006-7736.2015.03.022

大连海事大学学报 >

2015 , Vol. 41 >Issue 3: 124 - 127

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2015.03.022

电子信息

基于FCM聚类的雷达中频信号的运动目标检测

岳志新 ,
陈晓楠 ,
索继东

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(大连海事大学信息科学技术学院，辽宁大连 116026)

岳志新（1990-）,男,硕士生.

收稿日期: 2014-12-09

修回日期: 2015-03-15

网络出版日期: 2015-03-17

基金资助

国家自然科学基金资助项目(61471078).

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Target detection of radar IF signal based on FCM clustering

YUE Zhi-xin ,
CHEN Xiao-nan ,
SUO Ji-dong

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（Information Science and Technology College, Dalian Maritime University, Dalian 116026,China）

Received date: 2014-12-09

Revised date: 2015-03-15

Online published: 2015-03-17

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摘要

针对航海雷达在强杂波环境下对弱小目标检测能力不足的情况，提出一种基于FCM（Fuzzy-C- Means）聚类的雷达中频信号检测方法. 对雷达中频信号进行小波分解，提取低频子带作为聚类样本集，利用FCM聚类方法，对同次脉冲回波相邻单元进行聚类分析，通过设定门限来判定目标. 仿真结果表明，该方法可以改善输出信噪比，实现对目标的有效检测.

关键词： 目标检测; 雷达中频信号; 多普勒频移; FCM 聚类

本文引用格式

岳志新 , 陈晓楠 , 索继东 . 基于FCM聚类的雷达中频信号的运动目标检测[J]. 大连海事大学学报, 2015 , 41(3) : 124 -127 . DOI: 10.16411/j.cnki.issn1006-7736.2015.03.022

Abstract

Aiming at detection deficiency of weak target signal under the background of strong clutters for maritime radar, a new algorithm based on FCM clustering was put forward. Firstly, the radar IF signal was decomposed by wavelet, and the low frequency coefficient was extracted as cluster sample. Then FCM clustering was used to analyze the same pulse echo adjacent unit. Finally, the targets were detected by setting threshold. Simulation results show that this way can improve the signal-to-noise ratio of output and effectively detect target signal.

Key words： target detection; radar intermediate-frequency signal; the Doppler frequency shift; FCM clustering

参考文献

[1]苏晓宏.海杂波的特性分析与目标检测处理[D].大连:大连海事大学,2010. SU Xiao-hong.Analysis of sea clutter characteristics and processing of target detection[D].Dalian:Dalian Maritime University,2010.(in Chinese) [2]WANG Xue,LIU Jin,LIU Hong-wei.Small target detection in sea clutter based on Doppler spectrum Features[C]//2006 International Conference on Radar, Piscataway,NJ:IEEE Press,2006:1-4. [3]王霄琼.基于DSP的雷达中频信号的目标检测[D].大连:大连海事大学,2010. WANG Xiao-qiong.Radar target detection on IF signal based on DSP[D].Dalian:Dalian Maritime University,2010.(in Chinese) [4]张刚兵,刘渝,邓振淼.相参脉冲信号频率估计算法研究[J].电子学报,2009,37(9):2058-2061. ZHANG Gang-bing,LIU Yu,DENG Zhen-miao.Frequency estimation for coherent pulse train[J].Actc Electronica Sinica,2009,37(9)2058-2061.(in Chinese) [5]宗凯,俞卞章,李会方.基于模糊技术的信号检测 [J].电路与系统学报,2001,6(2):86-89. ZONG Kai,YU Bian-zhang,LI Hui-fang.Signal detection based on fuzzy technology[J].Journal of Circuits and Systems,2001,6(2):86-89.(in Chinese) [6]李目,何怡刚,周少武.混沌时间序列的模糊聚类预测与目标检测[J].电子测量与仪器学报,2008,22(5):53-58. LI Mu,HE Yi-gang,ZHOU Shao-wu.Chaotic time series prediction and target detection based on fuzzy clustering [J].Journal of Electronic Measurement and Instrument, 2008,22(5):53-58.(in Chinese) [7]SU Xiao-hong,SUO Ji-dong,LIU Xiao-ming,et al.FCM-based radar target detection in medium frequency signal of radar[C]//2010 Seventh International Conference on Fuzzy Systems and Knowledge Discovery (FSKD),Piscataway,NJ:IEEE Press:542-545. [8]陈晓楠.基于小波阈值方法的雷达回波降噪[J].大连海事大学学报,2010,36(2):84-86. CHEN Xiao-nan.Radar echoes signal denoising based on improved threshold and shrinkage Function[J].Journal of Dalian Maritime University,2010,36(2):84-86.(in Chinese) [9]潘泉,孟晋丽,张磊,等.小波滤波方法及应用[J].电子与信息学报,2007,29(1):236-242. PAN Quan,MENG Jin-li,ZHANG Lei,et al.Wavelet filtering method and its application[J].Journal of Electronics & Information Technology,2007,29(1):236-242.(in Chinese) [10]曲福恒,崔广才,李岩芳,等.模糊聚类算法及应用[M].北京:国防工业出版社,2011:61-65. [11]张敏,于剑.基于划分的模糊聚类算法[J].软件学报,2004,15(6):858-868. ZHANG Min,YU Jian.Fuzzy partitional clustering algorithms [J].Journal of Software,2004,15(6):858-868.(in Chinese)

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