星载SpaceWire路由器的研究与设计  

Research and Design of on-Board Dynamic SpaceWire Router

作　　者：毛春静[1] 关永[1] David Jungwirth 

机构地区：[1]首都师范大学信息工程学院,北京100048 [2]维也纳工业大学

出　　处：《电子与信息学报》2010年第8期1904-1909,共6页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60873006);北京市自然科学基金(4082009)资助课题

摘　　要：为满足航天器有效载荷间高速数据多路传输的未来发展需求,该文研究提出了基于SpaceWire的星载数据路由的设计方案。在SpaceWire总线标准网络层分析的基础上,结合虫孔路由原理构建路由器内部结构,提出了采用无阻断交差开关的SpaceWire路由器设计方案。在Simulink环境下建立了路由器仿真模型,并通过BWR解决了虫孔路由阻塞机制带来的刹车问题,使路由器的满负荷通信下的平均丢包率减少了70%。In order to satisfy the requirement of aerocraft’s multi- transmission for further development,this paper leads to a resolution about on-board SpaceWire routing technology.Based on the network level analysis of SpaceWire standard,it built the architecture of router with wormhole routing theory and non-blocking switch mechanism.A simulation model of router had been set to verify the design,and braking-problem from wormhole routing-blocking had been solved with BWR （Buffered Wormhole Routing）,it reduces 70% average packet-losing ratio on full load communication.

关 键 词：卫星通信 空间辐照 SPACEWIRE 虫孔路由 带缓冲的虫洞路由 

分 类 号：TN927[电子电信—通信与信息系统]