| 一种新的雷达全脉冲信号特征提取方法 |
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| 引用本文： | 国强,张兴周,李峥. 一种新的雷达全脉冲信号特征提取方法[J]. 哈尔滨工业大学学报, 2006, 38(1): 130-133 |
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| 作者姓名： | 国强 张兴周 李峥 |
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| 作者单位： | 哈尔滨工程大学 |
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| 基金项目： | 国家电子对抗国防科技重点实验室基金资助项目(NEWL51435QT220401) |
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| 摘 要： | 提出一种基于结构函数和经验模态分解的雷达全脉冲信号特征提取方法.该方法将载波频率和到达时间构成二维特征信息,并且首次引入结构函数和经验模态分解对雷达全脉冲序列的特征进行分析.实验结果表明,该方法能够有效地提取出复杂脉冲环境中载频周期滑变信号的滑变频率,从而为多信号交叠的雷达脉冲序列的信号分选找到一个新的特征.
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| 关 键 词： | 信号分选 结构函数 经验模态分解 特征提取 |
| 文章编号： | 0367-6234(2006)01-0130-04 |
| 收稿时间： | 2005-08-10 |
| 修稿时间： | 2005-08-10 |
A new feature extraction method for radar pulse sequences |
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| GUO Qiang,ZHANG Xing-zhou,LI Zheng. A new feature extraction method for radar pulse sequences[J]. Journal of Harbin Institute of Technology, 2006, 38(1): 130-133 |
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| Authors: | GUO Qiang ZHANG Xing-zhou LI Zheng |
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| Affiliation: | 1. College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China, ;2. National Key Laboratory of Electronic Warfare, Chengdu 610036, China |
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| Abstract: | Modern electronic warfare faces complex and dense pulses environments,which brings a severe challenge to radar signal sorting.In this paper,a new feature extraction method for radar pulse sequences is presented based on structure function and empirical mode.The 2-dimension feature information consists of radio frequency and time-of-arrival in this method,which analyzes the feature of radar pulse sequences for the very first time by employing structure function and empirical mode decomposition.The experiment result shows that the method can efficiently extract the frequency of the period-change radio frequency signal in the complex pulses environment and reveals a new feature for the signal sorting of interleaved radar pulse sequences.This paper provides a new way for extracting the new sorting feature of radar signals. |
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| Keywords: | signal sorting structure function empirical mode decomposition feature extraction |
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