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雷达辐射源信号脉内特征分析

Keywords: 源信号雷达辐射源调制方式特征提取幅度分类特征识别率分类识别仿真实验

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Abstract:

脉内特征提取是新型雷达辐射源信号识别的关键问题。本文提出一种新的雷达辐射源信号脉内特征提取和识别方法.将雷达辐射源脉冲信号的分形维数作为识别脉内调制方式的分类特征,这些特征包含了雷达辐射源信号幅度、频率和相位等的变化和分布信息,反映了雷达辐射源信号脉内调制规律,理论分析和仿真实验结果都证明了这些特征具有对噪声不敏感的良好特性.通过10种典型雷达辐射源信号的特征提取和分类识别的实验结果表明,本文所提取的脉内特征类间距离大、类内距离小、正确识别率高.证实了本文方法的有效性。

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