摘要
时间和频率标准在计量中起着非常重要的作用,通过NIMDO(UTC(NIM) Disciplined Oscillator)进行卫星共视数据比对,可实现时间标准向基准的实时溯源、实时同步。通过对系统验证及分析,NIMDO与UTC(NIM)时间偏差测量结果中90. 53%在±5ns以内,98. 60%在±20ns以内,结果表明该系统解决了时间溯源和同步问题,可为其它领域的时间同步提供参考。
Time and frequency standard played an important role in measurement. NIMDO traced and synchronized time standard to UTC( NIM) in near real time by satellite common-view method. The results of validation and analysis showed that 90. 53% of the time offset between NIMDO and UTC( NIM) maintained within ± 5 ns and98. 60% maintained within ± 20 ns. The results showed that the system solved the problem of time traceability and synchronization,and can provide reference for time synchronization in other fields.
作者
龙波
尤捷雯
张宇
王菊凤
黄徐瑞晗
Long Bo;You Jiewen;Zhang Yu;Wang Jufeng;Huang Xuruihan
出处
《计量与测试技术》
2019年第8期9-11,共3页
Metrology & Measurement Technique
基金
贵州省科技计划(黔科合支撑[2019]2881号)
关键词
时间同步
NIMDO
溯源
time synchronization
NIMDO
traceability
