实现函数信号发生器功能 可采用调频、调幅等方式对信号调制并有图形。复制和频率在一定范围内连续可调。-Function can be used to achieve the function signal generator FM, AM, etc. on the signal modulation and a graphic. Copy and frequency adjustable within a certain range.

调用该程序，可获得任何调幅幅信号的包络信号。-Invoke the program, any amplitude modulation amplitude of the signal of the envelope signal can be obtained.