摘要
在基于IP路由交换的卫星网络中,由于受宇航级器件能力限制,大规模路由协议的处理往往成为制约网络规模的瓶颈。针对这一问题,在分析IP网络中协议数据包特点的基础上,设计了一种星地协同的路由协议处理架构方案。方案设计了新的IP路由处理架构和业务流程,增加了IP数据包的星地协同处理机制,在少量改动现有载荷设计的前提下实现对IP包的识别与分类,通过专用星地链路实现将路由协议数据包发送到地面处理。测试结果表明,相比传统处理方案,星地协同的路由协议处理架构方案当路由条目数相同时,在路由收敛时间上可体现出巨大优势;当收敛时间相同时,收敛的路由条目数极大提高。该方案突破了目前卫星IP网络的规模瓶颈,极大提升了网络规模的上限,在大规模星地协同组网、一体化网络架构中具有较高应用价值。
In recent years,the micro-spacecraft,especially the cubesat,has been developed rapidly.Generally,cubesats have a short orbit life.In the end of orbit life,it is difficult for these cubesats to descend into the atmosphere to be burned in a desired duration.Then they will become a new kind of space junk.In recent years,the amount of space junk represented by waste micro spacecraft has increased significantly.Therefore,it is necessary to develop measures and methods to assist cubesat to leave orbit in order to effectively reduce the growth rate of such space junk.According to the deorbit requirements of the Taiyuan cubesat,a drag-augmented deorbit device is developed.In this paper,the folding mode of the sail membrane structure,the drive moment of the support boom and the unlocking mechanism are given detailed.Subsequently,the drag sail device was manufactured and the ground deployment test was carried out to verify the device design.After the mechanical and thermal environmental tests were carried out,the device was integrated with Taiyuan cubesat and launched into orbit successfully.
作者
陈昊
徐超
王海军
吕明帅
CHEN Hao;XU Chao;WANG Haijun;LV Mingshuai(School of Astronautics,Northwestern Polytechnical University,Xi’an 710072,China;Qingdao Research Institute,Northwestern Polytechnical University,Qingdao 266200,China;Institute of Aerospace Electronics Technology,Yantai 264003,China)
出处
《空间电子技术》
2021年第5期99-105,共7页
Space Electronic Technology
基金
西北工业大学硕士研究生创新创意种子基金(编号:ZZ2019057)。
