RADAR CFAR THRESHOLDING IN CLUTTER AND MULTIPLE TARGET SITUATIONS
RADAR CFAR THRESHOLDING IN CLUTTER AND MULTIPLE TARGET SITUATIONS
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DOI：
10.1109/taes.1983.309350
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发表时间：
1983-01-01
影响因子：
4.4
通讯作者：
ROHLING, H
中科院分区：
文献类型：
--
作者：
ROHLING, H
雷达检测过程包括将接收到的信号幅度与阈值进行比较。为了获得恒定的虚警率（CFAR），必须应用反映局部杂波情况的自适应阈值。例如，单元平均方法是一种自适应过程。讨论了一种CFAR方法，该方法使用从所谓的有序统计量中选择的一个单个值作为CFAR阈值（该方法与秩统计量根本不同）。这种方法比单元平均恒虚警有一些优点，特别是在参考窗口内存在多个目标的情况下，或者在参考窗口与杂波边缘交叉的情况下。
Radar detection procedures involve the comparison of the received signal amplitude to a threshold. In order to obtain a constant false-alarm rate (CFAR), an adaptive threshold must be applied reflecting the local clutter situation. The cell averaging approach, for example, is an adaptive procedure. A CFAR method is discussed using as the CFAR threshold one single value selected from the so-called ordered statistic (this method is fundamentally different from a rank statistic). This procedure has some advantages over cell averaging CFAR, especially in cases where more than one target is present within the reference window on which estimation of the local clutter situation is based, or where this reference window is crossing clutter edges.