高分辨雷達(dá)的目標(biāo)自動(dòng)檢測(cè)器
AUTOMATIC TARGET DETECOR FOR HIGH RESOLUTION RADAR
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摘要: 本文研究了高分辨雷達(dá)(HRR)的目標(biāo)自動(dòng)檢測(cè)器。由于HRR的分辨距離已可以與目標(biāo)電尺寸相比擬,因此目標(biāo)回波信號(hào)在時(shí)間上應(yīng)表示為散射中心在徑向上投影分布的函數(shù)。本文研究的是把目標(biāo)回波信號(hào)通過(guò)變換后與門(mén)限作比較,如超過(guò)門(mén)限,則判為有目標(biāo),否則就判為無(wú)目標(biāo)。文中列出各種變換方法,介紹了HRR技術(shù)實(shí)現(xiàn)和波形分析,最后還給出一個(gè)實(shí)際雷達(dá)目標(biāo)自動(dòng)檢測(cè)器實(shí)現(xiàn)框圖和其仿真性能結(jié)果。Abstract: The automatic target detector for High Resolution Radar(HRR) is considered. The detection performance of HRR is very important for target recongnition and imaging. Due to the size of the target is larger than the range resolution cell of the radar, the backscatered power of the target is recorded as a function of time. So a mapping from the function into a point of the real line or numbrical value T 0 is done. If T0 is greater than lambda 0 (threshold), then H1 is accepted, otherwise H0 is accepted. In this paper, the method of conversion is also considered.
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