phase shift keying

例句：

1. 1. In phaseshift keying, the signal is shifted in phase by a specific amount.
   在相位偏移键控中，信号通过特定的量进行相位偏移。
2. 2. The phase shift keying technique is used to enhance the quality of the communication signal.
   相位偏移键控技术被用来提高通信信号的质量。
3. 3.The phase shift keying system can be used for data transmission over long distances.
   相位偏移键制系统可用于长距离的数据传输。