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稀疏距离扩展目标自适应检测及性能分析

DOI: 10.3724/SP.J.1004.2013.01126, PP. 1126-1132

Keywords: 稀疏距离扩展目标,自适应检测,采样协方差矩阵,归一化采样协方差矩阵,有序统计量

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Abstract:

?在球不变随机向量杂波背景下,研究了稀疏距离扩展目标的自适应检测问题.基于有序检测理论,利用协方差矩阵估计方法,分析了自适应检测器(Adaptivedetector,AD).其中,基于采样协方差矩阵(Samplecovariancematrix,SCM)和归一化采样协方差矩阵(Normalizedsamplecovariancematrix,NSCM),分别建立了AD-SCM和AD-NSCM检测器.从恒虚警率特性和检测性能综合来看,AD-NSCM的性能优于AD-SCM和已有的修正广义似然比检测器.最后,通过仿真实验验证了所提方法的有效性.

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