基于卫星共视原子钟驯服法的远程时间溯源技术研究  

Research on Remote Time Traceability Technology Based on SatelliteCommon-View Atomic Clock Discipline Method

作　　者：徐昱 苏泽 李银轩 XU Yu;SU Ze;LI Yinxuan(Hunan Institute of Metrology and Test,Changsha 410014,China)

机构地区：[1]湖南省计量检测研究院,长沙410014

出　　处：《计量科学与技术》2021年第4期35-39,共5页Metrology Science and Technology

基　　金：国家重点研发计划重点专项项目(2017YFF0212000)。

摘　　要：通过建立卫星共视原子钟驯服装置,将本地原子时与国家时间频率基准参考站进行共视比对,实现了铷原子钟的驯服标准差2.19 ns,时间偏差稳定度(1天)小于1×10^(-9),相对频率偏差-8.42×10^(-17),频率稳定度(1天)小于2×10^(-14);铯原子钟的驯服标准差1.5 ns,时间偏差稳定度(1天)小于1×10^(-9),相对频率偏差7.03×10^(-17),频率稳定度(1天)小于1×10^(-14)。本地原子时得到有效的溯源,为完善时间标准的检定系统表提供了技术验证。In this paper,through the establishment of a satellite common-view atomic clock discipline device,the local atomic time is compared with the national time and frequency reference station.Results show that the standard deviation of the rubidium clock is 2.19 ns,the stability of time deviation(1 day)is less than 1×10^(−9),the relative frequency deviation is−8.42×10^(−17),the frequency stability(1 day)is less than 2×10^(−14),and the discipline standard deviation of cesium clock is 1.5 ns.The stability of time deviation(1 day)is less than 1×10^(−9),the relative frequency deviation is 7.03×10^(−17),and the frequency stability(1 day)is less than 1×10^(−14).The local atomic time is effectively traced and provides technical validation to improve the verification system table of the time standard.

关 键 词：驯服 卫星共视 时间标准 时间频率 时间溯源 

分 类 号：TH714.14[机械工程—测试计量技术及仪器]