说明：  CFAR代码，CFAR是用于雷达的一种滤波方法，称为平均值滤波，本程序给出了主程序以及CFAR-function，并且有噪音图和信号图，可以进行比较分析
(CFAR code, CFAR radar for a filtering method, known as average filtering, the process is the main program and CFAR-function, and the noise and signal map plan, it can conduct a comparative analysis)