建立GNSS时间基准的构想和思考

发布时间：2018-02-27 23:09

本文关键词： GNSS 守时实验室时间基准 TA(k) UTC(k) 时间同步精度频率稳定度　出处：《电子学报》2017年08期 　论文类型：期刊论文

【摘要】：本文论述了作者对建立全球导航卫星系统(GNSS,Gloal Navigation Satellite System)的系统时间GNSST,守时实验室的时间基准TA(k)和UTC(k)(k为实验室代号)的整体构想和一些思考,并论述了时间尺度算法,驾驭算法,钟差预测算法是如何在其中发挥作用的.以北斗系统为例,提出了使用两级驾驭算法建立北斗系统时间BDT(Beidou System Time)的方法.以国家授时中心(NTSC,National Time Service Center)为例,详细描述了建立TA(NTSC)和UTC(NTSC)的整体构想,方法,原理和理论依据.分析了TA(NTSC)对UTC(NTSC)的性能影响;以及假如用UTC(NTSC)驾驭产生BDT时,UTC(NTSC)对BDT时间同步精度和频率稳定度性能的影响;最后给出了同时使用UTC(NTSC)和UTC(BSNC)来驾驭产生BDT的设想,从理论上分析了采用该方案对BDT性能提升的影响.
[Abstract]:This paper discusses the author's overall conception and some thoughts about the establishment of GNSS Navigation Navigation Satellite system, the time-keeping standard of the time-keeping laboratory, and UTC(k)(k as the code name of the system, and discusses the time scale algorithm and the control algorithm. Taking Beidou system as an example, the method of using two-level control algorithm to establish BDT(Beidou System time of Beidou system is put forward. The National Time Service Center of National time Center is taken as an example. This paper describes in detail the overall conception, method, principle and theoretical basis of the establishment of tact NTSCand UTC NTSC. the effect of tact NTSCon on the performance of BDT NTSC is analyzed, and the influence of UTNTSCs on the performance of BDT time synchronization accuracy and frequency stability if it is used to produce BDT is analyzed. Finally, the assumption of using both UTC and BDT to produce BDT is given, and the influence of this scheme on the performance of BDT is analyzed theoretically.
【作者单位】：国防科技大学电子科学与工程学院;北京卫星导航中心;
【分类号】：TN967.1

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