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变参信道数字通信中,复用设备的帧同步保护问题是近年来实际工作中提出的一个迫切需要解决的问题。本文提出一种简单而有效的帧同步保护方案,它使复用设备的帧同步具有良好的抗御长突发误码的能力,相对于传统的帧同步保护方案来讲,本方案不仅具有良好的快捕长保特性,而且节省了器件,降低了成本,提高了可靠性。这种方法适用于各种需要具备快蝻长保特性的帧同步方案中。
In variable-channel digital communication, frame synchronization protection of multiplexed equipment is an urgent problem to be solved in practical work in recent years. This paper presents a simple and effective frame synchronization protection scheme, which makes the reuse of equipment frame synchronization has a good defense against long burst error ability, compared to the traditional frame synchronization protection scheme, the program not only has a good Quick catch characteristics, but also save the device, reduce costs and improve reliability. This method is suitable for all kinds of frame synchronization schemes that need to have a quick security feature.