amplitude modulation phase modulation conversion

例句：

1. 1. The amplitude modulation of the signal affects thequality of the communication.
   信号的振幅调制影响通信的质量。
2. 2. Inamplitude modulation, theamplitude of the carrier wave isvaried to modulate the transmitted signal.
   在振幅调制中，载波的振幅被变化以调制传输的信号。
3. 3.The amplitude modulation technique is widelyused in wireless communication systems.
   振幅调制技术在无线通信系统中广泛应用。