本文選題：星間鏈路設(shè)計(jì)　切入點(diǎn)：雙層規(guī)劃　出處：《宇航學(xué)報(bào)》2016年05期 　論文類型：期刊論文

【摘要】：通過研究當(dāng)前GPS下時(shí)分多址(TDMA)體制星間鏈路方案,并在分析星間鏈路測量和通信新需求的基礎(chǔ)上,提出改進(jìn)的分時(shí)體制星間鏈路方案,保證了測距和通信的同時(shí)隙執(zhí)行。針對(duì)兼顧星間測量和通信的星間鏈路設(shè)計(jì)這一多目標(biāo)優(yōu)化問題,考慮測量與通信之間的依賴關(guān)系,構(gòu)建雙層規(guī)劃模型求解,上層對(duì)星間測量進(jìn)行優(yōu)化,下層對(duì)星間通信進(jìn)行優(yōu)化,并分別設(shè)計(jì)上層啟發(fā)式星間測量鏈路貪婪搜索分配算法(RL-HGSA)和下層基于全局"鄰域"搜索的星間路由優(yōu)化算法(ROA-SGN)。仿真算例表明,根據(jù)本文模型和算法構(gòu)建的星間鏈路,星間測量鏈路利用率達(dá)到100%,星間通信采用最短時(shí)間最少跳數(shù)(MTMJ)的路由策略更優(yōu)。
[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.
【作者單位】： 國防科技大學(xué)信息系統(tǒng)與管理學(xué)院;中國航天科技集團(tuán)公司規(guī)劃計(jì)劃部;
【基金】：國家自然科學(xué)基金(71201171) 國防科技大學(xué)研究基金(JC13-05-03)
【分類號(hào)】：P228.4

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