基于Proximity-1协议的星间测距与时间同步技术研究  

Study of Inter-satellite Ranging and Time Synchronization Technology Based on CCSDS Proximity-1Protocol

作　　者：申景诗 左莉华[2] 贺瑞 康旭辉 

机构地区：[1]山东航天电子技术研究所,山东烟台264670 [2]航天东方红卫星有限公司,北京100094

出　　处：《航天器工程》2016年第1期67-72,共6页Spacecraft Engineering

摘　　要：卫星之间信息交互、星间相对测距及时间同步是卫星星座与编队卫星飞行任务的关键技术。文章利用空间数据系统咨询委员会(CCSDS)Proximity-1协议中给出的时间业务,提出了一种非相干双向测距/时间同步方法,在星间信息传输的同时完成星间高精度测距,并详细给出了算法的计算公式推导和模型误差分析,理论分析和实验仿真结果表明:文章提出的方法具有较高的测距/时间同步精度,且功能集成度高,可为星间链路的建设提供技术支持。Inter-satellite information interacting, ranging measurement and time synchronization are key technologies for the satellite constellations and satellite formation flying missions. In this paper,a method of non-coherent precisely ranging and time synchronization is proposed based on the timing services as given in CCSDS proximity-1 protocol,then the detailed formular derivation and model error of the algorithm are proposed and analyzed. The theoretical analysis and experi- ment results show that the method presented in the paper achieves higher precision of ranging measurement and time synchyonization, and can easily integrates the functions. Further more,it can provide an advantage design approach for the inter-satellite link.

关 键 词：Proximity-1协议 星间通信 非相干测距 时间同步 

分 类 号：TN919.34[电子电信—通信与信息系统]