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.
着重介绍阴极脉冲放大器为阴极提供一个脉冲、保证和帧同步在屏上产生一个光斑。
A cathode pulse amplifier is designed to offer the cathode pulse, which produces a spot pulse on the screen synchronized with the camera.
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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