一种改进的VI CFAR检测器

为得到不同杂波背景下的良好检测性能,给出了一种改进的VI CFAR检测器.该检测器主要利用均值类可变性指示（MLVI）CFAR检测器和有序统计类可变性指示（OSVI）CFAR检测器的各自优点以及VI CFAR的以背景均匀程度自动选择不同检测器思想.理论分析和仿真结果表明：该检测器在均匀背景下性能基本与MLVI CFAR重合;多目标背景下具有较强的抗多目标能力;杂波边缘背景下有较好的虚警概率控制能力且运算量小,是一种稳健的检测器.

A Sort of Improved VI CFAR Detector

In order to obtain the better detection performance under the varied clutter background,a sort of improved variable indication（VI） CFAR detector was given,where the corresponding advantages of MLVI CFAR and OSVI CFAR detectors were taken and the idea that the VI CFAR can select the varied detectors automatically under the background uniform extent was based on.Theoretical analysisand simulation results show that the performance of the proposed detector is typically identical with MLVI CFAR under the uniform background,well capable of antimulti targets under the background of multi-targets,better capability of CFAR control under the background of clutter edge and less computation,being a sort of robust detector.