极性采样倒相编码数字脉冲压缩处理器的检测性能
DETECTION PERFORMANCE OF DIGITAL POLARITY SAMPLED PHASE REVERSAL CODED PULSE COMPRESSORS
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摘要: 本文阐述了极性采样倒相编码数字脉冲压缩处理器的非参量恒虚警率特性。确定了高斯和非高斯噪声中的检测性能。说明了这种处理器相对于非相干匹配滤波器的信噪比损失随码长增加而减小;在高斯噪声中的渐近损失为1.96dB;在韦伯噪声中的损失随韦伯分布形状参数减小而减小,甚至可转为得益。
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Abstract: The nonparametric constant false alarm rate (CFAR) property of digital polarity sampled phase reversal coded pulse compressors is described. The detection performance in Gaussian and non-Gaussian noise is determined. It is shown that the loss in signal-to-noise ratio of the processor, relative to the incoherent matched filter, decreases as the code length increases, the asymptotic loss in Gaussian noise is 1.96 dB, and the loss in Weibull noise decreases with the shape parameter of the Weibull distribution and can even become a gain. -
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