labveiw实现基带信号的幅度调制（AM），频率调制(FM)和相位调制(PM)，可以在波形图中看到调制信号和调制后信号的叠加和对比，可以看到频域波形。载波与基带幅度和频率参数均可改变。-Baseband AM/FM/PM in labview. In the vi, you ll be able to see the modulated signal in both time and frequency domain.