... 帧扫描振幅调整：frame amplitude control 帧脉冲：frame pulse 帧间差分幅度压缩：interframe difference amplitude suppressing ...
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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。
With the LFM pulse frame synchronization method, the performance of UWA communication system based on DPSK is apparently improved.
在初始阶段， 通过设计导频序列，以实现帧级的捕获和脉冲级跟踪；
In the initiation phase, a pilot symbol sequence designed is capitalized to assure frame-level acquisition and pulse-level tracking.
计算机仿真和理论计算结果表明：同步帧中使用的同步脉冲越多，同步概率越高。
Simulation results and theoretical analysis indicate that the more synchronization impulses are used in one synchronization frame, the higher the synchronization probability.
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