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本文基于剔除平均和单元平均提出一种新的CFAR检测器(MTMCA)。我们预计这种检测器在均匀背景下将具有良好的检测性能。本文推导了它在均匀背景下的P_(fa)、P_d和度量ADT的解析表达式,并与其它几种CFAR方案的性能进行了比较,结论证明了我们的设想:MTM-CA的均匀背景性能要优于其它几种CFAR方案在多目标情况下,其恒虚警损失也比MOSCA,GOSCA和OS要小。这种检测器的样本排序时间相对较短,而且采用的文献提出的自动筛选技术能够提高它的抗干扰目标能力。
In this paper, a new CFAR detector (MTMCA) is proposed based on reject average and unit average. We expect that this detector will have good detection performance under a uniform background. In this paper, we derive the analytical expressions of P fa, P d and ADT in uniform background, and compare with other CFAR schemes. The conclusion proves our hypothesis that the uniform background performance of MTM-CA It is superior to the other CFAR schemes in the case of multi-target, its CFAR loss is also smaller than MOSCA, GOSCA and OS. This detector has a relatively short sample ordering time and the automatic screening technique proposed in the literature can improve its anti-jamming target capability.