摘要
基于有序统计和单元平均方法及文献［１］中的自动筛选技术，提出了一种新的恒虚警检测器。它被称作排序与平均均值（ＭＯＳＣＡ）处理器。对这种新的恒虚警检测器，在ＳｗｅｒｌｉｎｇⅡ型目标假设下，我们获得了虚警和检测概率度量ＡＤＴ的解析表达式。在均匀背景和存在强干扰目标的情况下，分析了它的检测性能，并将其与ＣＡ和ＯＳ－ＣＦＡＲ进行了比较。结果表明，ＭＯＳＣＡ－ＣＦＡＲ在均匀干扰背景中的性能位于ＣＡ和ＯＳ之间，在多目标情况下明显好于ＯＳ－ＣＦＡＲ检测器。
This paper presents a new CFAR detector based on ordered statistics and cell averaging, as well as the automalic censoring technique in [1] It is known as “Mean of Ordered Statistics and Cell Av-eraging (MOSCA )”processor.For this new CFAR detector we obtain analytic expression of the false alarm rate,the detection probabilities and measure ADT under the Swerling Ⅱassumption. Its dethetion perfor-mance is analyzed in homogeneous bacl oundand in the presence of strong interference targets,and we compare it with CA and OS-CFAR.This analysis shows that performance of the MOSCA-CFAR detector is between CA and OS-CAFR processors in homogeneous bachground ,and is much better than the OS-CFAR detector in multiple target situation.
出处
《现代雷达》
CSCD
1995年第4期32-36,82,共6页
Modern Radar
基金
国防科研基金
关键词
雷达
检测
恒虚警
算法
信号处理
radar ,detection ,CFAR,algorithms,signal processing
