極性采樣倒相編碼數(shù)字脈沖壓縮處理器的檢測性能
DETECTION PERFORMANCE OF DIGITAL POLARITY SAMPLED PHASE REVERSAL CODED PULSE COMPRESSORS
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摘要: 本文闡述了極性采樣倒相編碼數(shù)字脈沖壓縮處理器的非參量恒虛警率特性。確定了高斯和非高斯噪聲中的檢測性能。說明了這種處理器相對于非相干匹配濾波器的信噪比損失隨碼長增加而減小;在高斯噪聲中的漸近損失為1.96dB;在韋伯噪聲中的損失隨韋伯分布形狀參數(shù)減小而減小,甚至可轉(zhuǎn)為得益。
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關(guān)鍵詞:
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. -
F. E. Nathanson, Radar Design Principles, McGraw-Hill, New York, 1969.[2]A. M. Klein and M. T. Fujita, IEEE Trans. on AES, AES-15(1979), 795.[3]朱兆達,極性采樣倒相編碼數(shù)字脈壓的非參量檢測特性,南京航空學院科技資料,No. 273(1978).[4]V. G. Hansen and A. J. Zotll, IEEE Trans. on AES, AES-7(1971), 706.[5]J. W. Carlyle and J. B. Thomas, IEEE Trans. on IT, IT-10(1964), 146.[6]G. F. Montgomery, Proc. IRE, 42(1954), 447.[7]J. V. Difranco and W. L. Rubin, Radar Detection, Prentice-Hall, Englewood Cliffs, N. J., 1968. -
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