With the LFM pulse frame synchronization method, the performance of UWA communication system based on DPSK is apparently improved.
同时运用线性调频脉冲帧同步法，改善了基于差分相移键控的水声数字通信系统的性能。
Frame synchronization is a key part in Pulse Position Modulation. The performance of this part affects the whole performance of the PPM system.
帧同步是脉位调制中关键的一部分，其性能的好坏直接影响到整个系统的性能。
Frame synchronization is a key part in Pulse Position Modulation. The performance of this part affects the whole performance of the PPM system.
帧同步是脉位调制中关键的一部分，其性能的好坏直接影响到整个系统的性能。
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