| 基于FRFT的一类低截获概率雷达信号调制识别 |
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| 引用本文： | 徐会法,刘锋.基于FRFT的一类低截获概率雷达信号调制识别[J].航天电子对抗,2011,27(2):28-31. |
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| 作者姓名： | 徐会法 刘锋 |
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| 作者单位： | 1. 海军航空工程学院电子信息工程系,山东,烟台,264001;中国人民解放军94362部队,山东,青岛,266111
2. 海军航空工程学院电子信息工程系,山东,烟台,264001 |
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| 摘 要： | 线性调频信号、对称三角线性调频连续波信号与多相编码(Frank、P1、P2、P3与P4码)信号是一类具有线性调频特性的低截获概率雷达信号.为了识别这类信号的调制方式,分析了它们各自的时频分布特征,以及它们在分数阶Fourier域内的频谱分布特征.根据上述三种信号各自在参数(U,P)平面上的能量尖峰的分布特点,给出一种基...
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| 关 键 词： | 低截获概率雷达信号 分数阶Fourier变换 调制识别 |
Modulation recognition of a kind of low probability of intercept radar signals based on FRFT |
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| Xu Huifa,Liu Feng.Modulation recognition of a kind of low probability of intercept radar signals based on FRFT[J].Aerospace Electronic Warfare,2011,27(2):28-31. |
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| Authors: | Xu Huifa Liu Feng |
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| Institution: | Xu Huifa1,2,Liu Feng1(1.Department of Electronic and Information Engineering,Naval Aeronautical Engineering Institute,Yantai 64001,Shandong,China,2.Unit 94362 of PLA,Qingdao 266111,China) |
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| Abstract: | Linear frequency modulation(LFM) signal,symmetrical triangular linear frequency modulation continuous wave(STLFM-CW) signal and polyphase codes(Frank,P1,P2,P3 and P4 code) signal are a sort of low probability of intercept(LPI) radar signals that have linear frequency modulation characteristic.In order to identify these three kinds of signals,their time-frequency distribution and their spectrum distribution characteristics in the fractional Fourier domain are analyzed.Using the distribution characteristics o... |
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| Keywords: | low probability of intercept radar signal fractional Fourier transform modulation recognition |
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