分布式OS-CPAR檢測(cè)在多脈沖非相干積累條件下的性能分析
PERFORMANCE ANALYSIS OF DISTRIBUTED OS-CFAR DETECTION WITH NONCOHERENT INTEGRATION OF MULTIPLE PULSES
-
摘要: 在非均勻雜波背景中和兩個(gè)局部檢測(cè)器的條件下，本文分析了分布式OS-CFAR檢測(cè)在多脈沖非相干積累條件下的性能，與單脈沖檢測(cè)，單傳感器檢測(cè)以及相應(yīng)的最優(yōu)固定閾值檢測(cè)進(jìn)行了對(duì)比。結(jié)果表明，多脈沖積累使分布式檢測(cè)的性能有明顯增強(qiáng)，脈沖積累數(shù)的增加使之與最優(yōu)固定閾值檢測(cè)的差距減?。冶M管脈沖積累數(shù)的增加使分布式檢測(cè)相對(duì)于單傳感器檢測(cè)的優(yōu)勢(shì)減弱，但是優(yōu)勢(shì)依然存在，并且在信噪比較低時(shí)較為明顯。
-
關(guān)鍵詞:
- 分布式CFAR檢測(cè); 多脈沖; 均勻背景; 多目標(biāo); 雜波邊緣
Abstract: This paper analyzes the distributed OS-CFAR detection with noncoherent integration of multiple pulses under the conditions of nonhomogeneous background and two local detectors.Compared with the monopulse detection and the single sensor detector and the corresponding optimal fixed threshold detection,the integration of multiple pulses improves the distributed detection obviously,and the increase of number of integrated pulses reduces its difference from the optimal fixed threshold detection.Although the increase of number of integrated pulses weaken the superority of distributed detection over the single sensor detection,the superority still exist and it is more obvious for low SNR. -
[1] 何友，關(guān)鍵，彭應(yīng)寧，陸大 ．雷達(dá)自動(dòng)檢測(cè)與CFAR處理．北京：清華大學(xué)出版社，1999年． [2] Varshney P K.Distributed Detection and Data Fusion.New York:Springer-Verlag,1996. [3] Viswanathan R,Varshney P K.Distributed detection with multiple sensors,Part Ⅰ:--Fundamentals[J].Proc.IEEE.1997,85(1):54-63 [4] Blum S R,Kassam S A,Poor H V.Distributed detection with multiple sensors,Part Ⅱ:Advanced Topics[J].Proc.IEEE.1997,85(1):64-79 [5] Han J,Varshney P K,Srinvasan R.Distributed binary integration.IEEE Trans.on AES.,1993,AES-29(1):2-8. -
計(jì)量
- 文章訪問(wèn)數(shù): 2048
- HTML全文瀏覽量: 107
- PDF下載量: 459
- 被引次數(shù): 0
下載:
