| 基于图像处理技术的雷达辐射源信号时频特性分析 |
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| 引用本文： | 邹兴文,张葛祥.基于图像处理技术的雷达辐射源信号时频特性分析[J].电路与系统学报,2009,14(3). |
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| 作者姓名： | 邹兴文 张葛祥 |
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| 作者单位： | 1. 西南交通大学,信息科学与技术学院,四川,成都,610031;四川航天电子设备研究所,四川,成都,610100
2. 西南交通大学电气工程学院,四川,成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目，四川省青年科技基金项目 |
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| 摘 要： | 针对常用时频分析方法对多分量雷达辐射源信号(RES)分析和处理的不足,提出一种基于图像处理技术的多分量RES时频特性分析方法.该方法通过时频分布图的平滑滤波、阈值处理和基于形态学细化等算法来提取RES自分量,在有效抑制噪声的同时,能够得到具有高分辨率的多分量RES时频图.仿真实验表明,该方法既克服了常用时频分析方法的不足,又优于时频重排方法对多分量RES的时频特性分析.
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| 关 键 词： | 图像处理技术 雷达辐射源信号 时频分布 |
Time-frequency analysis of radar emitter signals based on image processing technology |
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| ZOU Xing-wen,ZHANG Gex-iang.Time-frequency analysis of radar emitter signals based on image processing technology[J].Journal of Circuits and Systems,2009,14(3). |
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| Authors: | ZOU Xing-wen ZHANG Gex-iang |
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| Affiliation: | ZOU Xing-wen1,3,ZHANG Ge-xiang2(1.School of Information Science , Technology,Southwest Jiaotong University,Chengdu 610031,China,2.School of Electrical Engineering,3.Sichuan of Institute Aerospace Electronic Equipment,Chengdu 610100,China) |
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| Abstract: | Conventional time-frequency analysis methods are exposed to some limitations in analyzing multi-component radar emitter signals(RES).In this paper,a method for time-frequency analysis of multi-component RES is proposed based on image processing technology.The combination of the spatial smoothing operation,the threshold comparison and the thinning algorithm of morphology can lead to the improvement of time-frequency resolution and the noise suppression.Simulation results show that the introduced method is su... |
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| Keywords: | image processing technology radar emitter signals time-frequency representation |
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