synchronous demodulator

例句：

1. 1. The device is designed to operate in a synchronous demodulator mode.
   该设备设计为在同步解调器模式下运行。
2. 2. The signal was demodulated using a synchronous demodulator.
   信号使用同步解调器进行了解调。
3. 3.The synchronous demodulator was used to detect the presence of a radio frequency signal.
   同步解调器被用来检测无线电频率信号的存在。