基于熵特征的调频引信目标与干扰信号识别

Acta Armamentarii(2017)

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Abstract
针对调频引信较难抑制的调幅扫频类干扰,提出了一种基于熵特征的目标与干扰信号分类识别方法.比较目标和干扰信号作用下引信检波信号时域和频域特征,提取检波信号的香农熵和奇异谱熵,通过Kruskal-Wallis检验方法验证了特征参量的有效性,并利用支持向量机分类器对目标信号和干扰信号进行了分类识别.仿真实验结果表明:在支持向量机核函数参数最优时,该方法的分类识别正确率达到98.954%,有效提高了调频引信的抗扫频式干扰能力.
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