摘要
提出具有遥感、星间星地组网、星载边缘计算功能的低轨卫星与地面云计算中心和天基、临近空间、空中、陆地、海面等各类型终端构成的卫星互联网总体架构,给出包括资源层、虚拟化层、服务层、服务管理层及应用层在内的星载边缘计算功能架构。针对星载计算能力有限、天基网络拓扑高动态等典型特征,在提出星载边缘计算模拟验证系统构建方法的基础上,设计服务天基感知业务的卫星互联网模拟验证系统,开展天基感知信息处理分发试验,并根据不同信息处理与分发方式对网络资源占用和用户服务时延的对比,分析不同能力条件下卫星互联网对天基感知业务服务的能力水平。
The architecture of satellite Internet composed of LEO satellites with remote sensing/inter-satellite and satellite-earth net-working,on-board edge computing functions,and ground cloud computing centers,and various types of terminals such as sky,near space,space,ground,sea terminals was put forward.The functional architecture of on-board edge computing,included resource layer,virtualization layer,service layer,service management layer and application layer was given.On the basis of proposed the construction method of on-board edge computing simulation and verification system,a satellite Internet simulation and verification system serving space sensing services was designed,and space-based sensing information processing and distribution experiments were carried out.According to the comparison of network resource occupation and user service delay with different information processing and distribu-tion methods,the capability level of satellite Internet for space sensing services under different capability conditions were analyzed.
作者
陶滢
刘伟
张磊
高梓贺
周钠
TAO Ying;LIU Wei;ZHANG Lei;GAO Zihe;ZHOU Na(Institute of Telecommunication and Navigation Satellite,China Academy of Space Technology,Beijing 100094,China;State Key Laboratory of Space Earth Integrated Information Technology,Beijing 100086,China)
出处
《天地一体化信息网络》
2024年第1期48-59,共12页
Space-Integrated-Ground Information Networks
基金
国家重点研发计划资助项目(No.2021YFB2900603)。
关键词
天基感知业务
卫星互联网
星载边缘计算
模拟验证
space remote sensing service
satellite Internet
onboard edge-computing
simulation and verification system
