面向卫星星座的多地面站系统链路分配策略  

Multi-ground station system-based link allocation strategy for satellite constellation

作　　者：姜逸飞 何婉霞 刘文正 吴树范 魏骁 莫乾坤 JIANG Yifei;HE Wanxia;LIU Wenzheng;WU Shufan;WEI Xiao;MO Qiankun(School of Aeronautics and Astronautics,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Aerospace Computer Technology Institute,Shanghai 201101,China;Shanghai Aerospace Systems Engineering Institute,Shanghai 201101,China)

机构地区：[1]上海交通大学航空航天学院,上海200240 [2]上海航天计算机技术研究所,上海201101 [3]上海航天系统工程研究所,上海201101

出　　处：《北京航空航天大学学报》2025年第4期1224-1233,共10页Journal of Beijing University of Aeronautics and Astronautics

基　　金：大规模卫星星座传输策略研究(23GFH-HT01-082)。

摘　　要：针对大规模卫星星座开展通信资源的研究,随着多个低轨星座的成功构建,标志着大规模卫星星座的商用化已经开始。这类大规模卫星星座可以同时兼顾低时延、广覆盖和大流量的优点。高效利用地面站资源成为大规模卫星星座研究的技术瓶颈,针对该问题,提出多星及多站拓扑结构,并结合链路时间资源,提出星地链路时间模型。同时,提出时隙插入策略,以多地面站的整体链路效能作为优化目标,得到多星及多站链路时间表。通过与随机策略和贪婪策略的性能对比,验证了所提策略的可行性和优越性。Aiming at the research of large-scale satellite constellation,the research content of communication resources is put forward.With the successful construction of several low-orbit constellations,the commercialization of large-scale satellite constellations has begun.This kind of large-scale satellite constellation can simultaneously take into account the advantages of low delay,wide coverage and large traffic.In order to make efficient use of earth station resources,it has become the technical bottleneck of large-scale satellite constellation research.The multi-star and multi-station topology is proposed to better focus on this problem.Combined with the link time resources,a satellite-earth link time model is proposed.On this basis,the time-slot insertion strategy is proposed,and the multi-star and multi-station link schedules are obtained by taking the overall link efficiency of multi-ground stations as the optimization objective.The feasibility and superiority of the proposed strategy are verified by comparing the performance with random strategy and greedy strategy.

关 键 词：卫星星座 地面站 资源分配 网络拓扑 通信链路 

分 类 号：V221.3[航空宇航科学与技术—飞行器设计] TB553[理学—物理]