国防科技大学学报Issue(1)：62-66,5.DOI:10.11887/j.cn.201401012
一种新的卫星导航星间链路测距体制及其定轨性能分析
A novel navigation inter-satellite links ranging hierarchy and its orbit determination performance
摘要
Abstract
The present polling time division duplex (PTDD)ranging hierarchy of GPS inter-satellite links (ISL)demands being optimized for satellite orbit determination. An improved ranging hierarchy named grouping time division duplex (GTDD ) is presented. Satellite orbit determination precision based on inter-satellite and satellite-to-station ranges is able to be improved by the novel ranging hierarchy in respect of ISL ranging links increasing by grouping ranging of the whole constellation.Aiming at the optimal satellite orbit determination precision,a two-steps algorithm is presented to optimize the satellite grouping.Firstly,the optimal satellite groupings were obtained to achieve the most inter-satellite ranging links.Secondly,the ranging DOP was made the least in each satellite group.Simulation results show that the satellite orbit determination precision can be improved greatly from the two-steps algorithm.关键词
卫星导航星间链路/星地星间联合定轨/星间测距体制/卫星分组Key words
navigation inter-satellite links/satellite orbit determination based on inter-satellite and satellite-to-station ranges/inter-satellite ranging hierarchy/satellite grouping分类
信息技术与安全科学引用本文复制引用
王东会,徐博,刘文祥,孙广富..一种新的卫星导航星间链路测距体制及其定轨性能分析[J].国防科技大学学报,2014,(1):62-66,5.基金项目
国家部委资助项目 （）
