autoheterodyne

例句：

1. 1. The radio's autoheterodyne system automatically adjusts the frequency to match the signal it's receiving.
   收音机的自差调系统会自动调整频率以匹配它正在接收的信号。
2. 2. The device can be used for autoheterodyne communication, which is useful in emergency situations.
   该设备可用于自差调通信，在紧急情况下非常有用。
3. 3. In this study, we investigate the autoheterodyne transmission of signals between two antennas.
   在本研究中，我们研究了两个天线之间的信号的自差调传输。