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文章首先简要介绍了DVB-RCS(回传信道通过卫星的数字视频广播)卫星互动网络结构。在DVB-RCS网络中,作为采用MF-TDMA(多频时分多址)技术的卫星网络系统,由于支持更多的终端与主站之间的通信,终端在系统中的同步问题就变得更加的重要。文中主要研究了捕获突发和完成终端在网络中的时钟同步、载波同步和突发同步,在对系统终端同步研究基础上,文中给出了一个RCST的同步流程。
The article begins with a brief introduction to DVB-RCS (Backhaul Channel Digital Video Broadcasting via Satellite) satellite interactive network architecture. In the DVB-RCS network, as a satellite network system using the MF-TDMA (Multi-Frequency Time Division Multiple Access) technology, terminal synchronization problems in the system become more problematic due to support for more terminals and master communication importance. This paper mainly studies the capture burst and the completion of the terminal clock synchronization, carrier synchronization and burst synchronization in the network. Based on the research on the synchronization of the system terminal, an RCST synchronization process is given.