镜像工作进程，派生新进程，删除进程，起到杀死进程的功能，调用的API函数-Mirroring the process, derive a new process, the removal process, the functions of play to kill the process, call the API function

这是简易的FSK信号调制，把文件放入matlab的文件库中，通过在matlab的命令窗口直接调用功能函数并运行，可以直接看到仿真结果。-This is a simple FSK signal modulation, the file into Matlab file library, call function directly in the Matlab command window and run the simulation results can be seen directly.