摘要
针对星载光电混合交换中大颗粒度光业务难以直接进行小颗粒度电业务分发的问题,提出一种星载光电混合SDH交换方法。分析了星载光电混合SDH交换的关键技术,通过采用并行帧同步方法对SDH系统进行同步,提高系统同步的稳定性,并对VC-4和VC-3统一进行时隙划分以适应同一数字交叉连接矩阵交换需求,减少星上硬件资源的消耗。仿真结果表明,该方案适于星上应用。
Aiming at the problem that large granularity optical services in the on-board mixed optical/electrical switching are difficult to directly distribute small granularity electrical services, a SDH-based on-board mixed optical/electrical switching method is proposed. The key technologies of SDH switching are analyzed,the parallel frame synchronization method is used to synchronize the SDH system and improve the stability of system synchronization. And the VC-4 and the VC-3 are unified to divide the time slots to meet the requirements of the same digital cross-connect（DXC） matrix switch to reduce the consumption of hardware resources on the satellite. The simulation results show that this solution is suitable for on-board applications.
作者
崔涛
黎军
呼延烺
张怡
CUI Tao;LI Jun;HUYAN lang;ZHANG Yi(National Key Laboratory of Science and Technology on Space Microwave,China Academy of Space Technology（Xi＇an）,Xi＇an 710100,China)
出处
《光通信技术》
北大核心
2018年第9期22-25,共4页
Optical Communication Technology
基金
国家某项目资助
