OSGO-和OSSO-CFAR在K分布雜波背景下的性能分析
Performance Analysis of OSGO- and OSSO-CFAR in K-Distribution Clutter
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摘要: 該文證明了形狀因子已知條件下OSGO-CFAR和OSSO-CFAR檢測器在均勻統(tǒng)計獨立的K分布雜波背景下具有恒虛警性能,分析了兩種檢測器在均勻雜波背景、雜波邊緣和存在強干擾目標(biāo)情況下的檢測性能。并與OS-CFAR進(jìn)行了比較,結(jié)果表明OSGO-CFAR在均勻雜波背景和存在強干擾目標(biāo)情況下帶來的附加檢測損失很小, 在雜波邊緣具有更好的虛警控制能力。所以,OSGO-CFAR是K分布雜波背景下一種性能比較好的恒虛警檢測器。
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關(guān)鍵詞:
- K分布雜波; 恒虛警; 檢測損失
Abstract: This paper proves that Ordered Statistic with Greatest Option CFAR(OSGO-CFAR) and Ordered Statistic with Smallest Option CFAR(OSSO-CFAR) are also of CFAR under homeomorphic independent K-distributed clutter background when the shape parameter is known. The performance of two detectors is analyzed against uniform clutter background, clutter edges and multiple target environments. Compared to OS-CFAR, OSGO-CFAR has little additional detectability loss against uniform clutter background and multiple target environments, and it has improved control ability of false alarm against clutter edges. Therefore, OSGO-CFAR detector is a kind of CFAR detector which has better performance during K-distributed clutter. -
Ward K D. Compound representation of high resolution sea clutter[J].Electronics Letters.1981,17(16):561-[2]唐勁松,朱兆達(dá).K分布雜波背景下次序統(tǒng)計恒虛警檢測器的性能.電子學(xué)報,1997,25(6):112-113.[3]何友,關(guān)鍵,等.雷達(dá)自動檢測與恒虛警處理.北京:清華大學(xué)出版社,1999,5,第三章.[4]Elias A R, De Mercad M G, Davo E R. Analysis of some modified order statistic CFAR: OSGO and OSSO CFAR[J].IEEE Trans. on Aerospace and Electronic System.1990, 26(1):197-[5]Rohling H. Radar CFAR thresholding in clutter and multiple target situations[J].IEEE Trans. on Aerospace and Electronic System.1983, 19(4):608-[6]唐勁松.高分辨率雷達(dá)目標(biāo)檢測與識別.[博士論文],南京:南京航空航天大學(xué),1996,3.[7]Wilson S L. Two CFAR algorithm for interfering targets and nonhomogeneous clutter[J].IEEE Trans. on Aerospace and Electronic System.1993, 29(1):57- -
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