中国空间科学技术

中国空间科学技术 ›› 2023, Vol. 43 ›› Issue (1): 18-28.doi: 10.16708/j.cnki.1000-758X.2023.0002

• 论文 • 上一篇    下一篇

大规模卫星星群域管控策略设计

李宁，岳程斐，郭海波，邱实，曹喜滨   

  1. 1 哈尔滨工业大学 卫星技术研究所，哈尔滨150080
    2 哈尔滨工业大学（深圳） 空间科学与应用技术研究院，深圳518055
    3 上海卫星工程研究所，上海201108
  • 发布日期:2023-01-13 出版日期:2023-02-25

Domain control strategy for the large-scale satellite cluster

LI Ning，YUE Chengfei，GUO Haibo，QIU Shi，CAO Xibin   

  1. 1 Research Center of Satellite Technology，Harbin Institute of Technology，Harbin 150080，China
    2 Institute of Space Science and Applied Technology，Harbin Institute of Technology （Shenzhen），Shenzhen 518055，China
    3 Shanghai Institute of Satellite Engineering，Shanghai 201108，China
  • Online:2023-01-13 Published:2023-02-25

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摘要： 针对大规模卫星星群单节点管控带来的系统通联性差、地面资源依赖度高等问题，提出了分层管理、域内自治、动态维护的卫星星群分布式域管控策略。首先，设计了衡量卫星节点管控能力的静态指数及动态指数，并提出了多因素加权的星群簇首选择方法。其次，提出了通过逐层择优的方式进行域结构初始化的算法流程。最后，根据星群变化情形，提出了基于事件触发的动态时间片域管控方法，保证了大规模星群在全任务周期内能维持相对稳定的管控构型。仿真结果表明，所提出的域管控策略能够有效完成对目标星群的簇首选择、域初始化及动态维护过程，并保持域结构的稳定。实现了目标星群在空间中的域结构划分管理，使地面直接参与管理的卫星节点数目降至原管理模式的14％，有效解决了星群管控严重依赖地面资源的相关问题。

关键词: 大规模卫星星群, 管理域划分, 多因素衡量, 逐层择优, 动态时间片

Abstract:

In large-scale satellite constellations，single node management and control will lead to poor system connectivity and high dependence on ground resources.A distributed domain control strategy for satellite constellations with hierarchical management，intradomain autonomy and dynamic maintenance was proposed.Firstly，both the static index and dynamic index to measure the governability were defined.According to the newly-defined indexes，a multi-factor weighted cluster head selection method was proposed.Then，based on the selected cluster head node，a cascading optimal initialization algorithm for the cluster was established.Aiming at dynamic maintaining of the established cluster control structure，an event-triggered dynamic time slice domain control method was proposed.Finally，control simulation result of the proposed method in the case of LEO large-scale satellite constellation verifies the effectiveness of cluster head selection，cluster initialization and long-term maintenance.The number of satellites which were managed through ground station was reduced to 14%.High dependence on ground resources was significantly reduced.

Key words:

large-scale satellite constellations, management domain division, multi-factor weighted selection, cascading optimization, dynamic time slice