大规模高动态星座网络信息同步方法  

Information synchronization method for large scale and high dynamic constellation network

作　　者：孔祥磊 孙弋舒 吴学友 高建威 田志新 KONG Xianglei;SUN Yishu;WU Xueyou;GAO Jianwei;TIAN Zhixin(Institute of Spacecraft Application System Engineering,China Academy of Space Technology,Beijing 100094,China)

机构地区：[1]中国空间技术研究院卫星应用总体部,北京100094

出　　处：《中国空间科学技术(中英文)》2025年第1期135-142,共8页Chinese Space Science and Technology

基　　金：国家自然科学基金(41901292)。

摘　　要：多星完成协同任务规划的关键输入要素是卫星掌握全星座状态信息。面向大规模星座星间拓扑高动态变化、星地任务传输或星间任务传输链路频繁切换,提出一种分布式自主任务规划信息同步方法。通过将星座网络在离散时间域上进行拆分,充分考虑星座网络拓扑的规则性和不可预测性,针对卫星状态具备可预测性和不可预测性,设计星座卫星之间的信息全局透明化交互策略。该策略实现分布式星上自主协同决策,显著降低对地面测控资源的依赖,提升星座自主任务规划的智能性和执行能力。对星间链路频繁断开、重建、卫星故障或新卫星补充导致的星座拓扑变化,该策略具备快速调整能力。仿真校验了理论的有效性。A distributed autonomous mission planning information synchronization method is proposed for large-scale constellation.Due to the periodic movement of satellites,the large-scale constellation is at a high dynamic change.Considering the frequent switching of satellite-ground or inter-satellite task transmission links,the constellation network is split in the discrete time domain.Combining the regularity and unpredictability of constellation network topology,two kinds of constellation information synchronization methods are proposed.When the satellite state is predictable,distributed onboard autonomous collaborative decision-making can be achieved.When the satellite state is unpredictable,a new design method is introduced.The two methods significantly reduce the dependence on ground resources and improve the intelligence and execution ability of autonomous mission planning of constellation.Simulation verifies the effectiveness of the theory.

关 键 词：大规模星座 高动态网络 分布式交互 状态信息同步 

分 类 号：V19[航空宇航科学与技术—人机与环境工程] TP18[自动化与计算机技术—控制理论与控制工程]