此matlab 程序主要是针对3部重频固定的雷达信号进行分选，针对许多程序中与原理图不合理的地方进行了修改，符合了原理，经仿真可以准确分选出3部雷达信号。(This matlab program is mainly used for sorting three fixed-frequency fixed radar signals. It is modified for many programs and places where the schematic diagram is unreaso