兩種恒虛警檢測器在干擾邊緣中的性能分析
PERFORMANCE ANALYSIS OF TWO CFAR DETECTORS UNDER CLUTTER EDGE SITUATION
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摘要: 本文研究 GOSGO(Generalised Order Statistics and Greatest Of)和GOSSO(Generalised Order Statistics and Smallest Of)-CFAR檢測器在干擾邊緣中的性能。文中推導(dǎo)出了它們在干擾邊緣環(huán)境中虛警概率的解析表達(dá)式,分析了它們抗邊緣干擾的性能,并且與OS(Order Statistics)、CA(Cell Averaging)、GO(Greatest Of)和SO(Smallest Of)等檢測器進(jìn)行了比較。結(jié)果表明,與抗邊緣干擾性能較好的GO相比,GOSGO的抗邊緣干擾性能又有明顯的增強(qiáng)。但是,GOSSO的抗邊緣干擾性能卻很不理想。
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關(guān)鍵詞:
- 雷達(dá); 信號(hào)檢測; 恒虛警率; 干擾邊緣
Abstract: This paper studies the performances of the GOSGO (Generalised Order Statistics and Greatest Of)-- and GOSSO (Generalised Order Statistics and Smallest Of)--CFAR detectors under clutter edge situation. The analytic expressions of false alarm probabilities under clutter edge situation are derived. Their performances to counter clutter edge are analysed, and compared them with the OS(Order Statistics), CA(Cell Averaging), GO(Greatest Of) and SO(Smallest Of) detectors. Results show that GOSGO possesses the better performance than GO for countering clutter edge. But the performance of GOSSO is not good. -
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