| 极性采样倒相编码数字脉冲压缩处理器的检测性能 |
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| 引用本文： | 朱兆达
,屠树德.极性采样倒相编码数字脉冲压缩处理器的检测性能[J].南京航空航天大学学报,1986(4). |
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| 作者姓名： | 朱兆达 屠树德 |
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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(CFAR)特性。这种处理器实质上是简化的Dicke-fix,也是窄带信号的符号检测器。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Weibull噪声中的损失随Weibull分布形状参数减小而减小,甚至可转为得益。
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| 关 键 词： | 雷达信号 检测器 脉冲压缩 恒虚警接收机 数字相关器 非参数检验 |
Detection Performance of Digital Polarity Sampled Phase Reversal Coded Pulse Compressors |
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| Zhu Zhaoda Tu Shude.Detection Performance of Digital Polarity Sampled Phase Reversal Coded Pulse Compressors[J].Journal of Nanjing University of Aeronautics & Astronautics,1986(4). |
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| Authors: | Zhu Zhaoda Tu Shude |
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| Institution: | Zhu Zhaoda Tu Shude |
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| Abstract: | The nonparametric constant false alarm rate (CFAR) property of digital polarity sampled phase reversal coded pulse compressors is described.Virtually,this processor is a simplified Dicke-fix,and a sign detector for narrowband signals as well.The detection performance in Gaussian and non-Gaussian noise is determined.It is shown that the loss in signal-to-noisc ratio of the processor,relative to the incoherent matched filter,decreases as the code length increases,the asymptotic loss in Gaussian noise is 1.96dB,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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| Keywords: | radar signals detectors pulse compression constant falsealarm receiver digital correlator non-parametric tests |
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