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网络同步是卫星通信系统的关键技术。针对基于MF-TDMA/TDM体制的新一代宽带多媒体通信卫星系统,提出了网络同步的总体方案;在此基础上,分别设计了上下行链路的帧同步结构和信号流程,并对捕获、失同步后的快速恢复和定时控制方案等关键问题进行了探讨。
Network synchronization is the key technology of satellite communication system. Aiming at the new generation of broadband multimedia communication satellite system based on MF-TDMA / TDM system, the overall scheme of network synchronization is proposed. On this basis, the frame synchronization structure and signal flow of uplink and downlink are respectively designed. The rapid recovery after synchronization and timing control programs and other key issues were discussed.