双层规划求解兼顾测量与通信的星间链路设计

发布时间：2018-03-21 13:29

本文选题：星间链路设计　切入点：双层规划　出处：《宇航学报》2016年05期 　论文类型：期刊论文

【摘要】：通过研究当前GPS下时分多址(TDMA)体制星间链路方案,并在分析星间链路测量和通信新需求的基础上,提出改进的分时体制星间链路方案,保证了测距和通信的同时隙执行。针对兼顾星间测量和通信的星间链路设计这一多目标优化问题,考虑测量与通信之间的依赖关系,构建双层规划模型求解,上层对星间测量进行优化,下层对星间通信进行优化,并分别设计上层启发式星间测量链路贪婪搜索分配算法(RL-HGSA)和下层基于全局"邻域"搜索的星间路由优化算法(ROA-SGN)。仿真算例表明,根据本文模型和算法构建的星间链路,星间测量链路利用率达到100%,星间通信采用最短时间最少跳数(MTMJ)的路由策略更优。
[Abstract]:By studying the scheme of intersatellite link in current GPS system, and analyzing the new requirements of intersatellite link measurement and communication, an improved scheme of time division multiple access (TDMA) intersatellite link is proposed, based on the analysis of the new requirements of intersatellite link measurement and communication, an improved time division multiple access (TDMA) intersatellite link scheme is proposed. The simultaneous gap execution of ranging and communication is ensured. Considering the dependence between measurement and communication, a bilevel programming model is constructed to solve the multi-objective optimization problem of inter-satellite link design, which takes into account the relationship between measurement and communication. The upper layer optimizes the intersatellite measurement, the lower layer optimizes the intersatellite communication, The greedy search allocation algorithm RL-HGSAs for the upper layer heuristic intersatellite measurement link and the ROA-SGNN algorithm for the lower layer based on the global "neighborhood" search are designed respectively. The simulation results show that the proposed algorithm is based on the proposed model and algorithm. The utilization ratio of intersatellite measurement link is 100, and the route policy of the shortest time and the least number of hops (MTMJ) is better for inter-satellite communication.
【作者单位】：国防科技大学信息系统与管理学院;中国航天科技集团公司规划计划部;
【基金】：国家自然科学基金(71201171) 国防科技大学研究基金(JC13-05-03)
【分类号】：P228.4

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