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Research on Remote Time Traceability Technology Based on Satellite Common-View Atomic Clock Discipline Method
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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。Abstract: 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.
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Key words:
- discipline /
- satellite common-view /
- time standard /
- time frequency /
- time traceability
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图 2 基于卫星共视的铷原子钟驯服装置结构图
Figure 2. Structure diagram of rubidium atomic clock discipline device based on satellite common-view
图 4 基于卫星共视的铯原子钟驯服装置结构图
Figure 4. Structure diagram of cesium atomic clock discipline device based on satellite common-view
图 6 TS17远程站与UTC(NIM)的时间偏差和相对频率偏差
Figure 6. Time deviation and relative frequency deviation between TS17 remote station and UTC (NIM)
图 9 TF16远程站与UTC(NIM)的时间偏差
Figure 9. Time deviation and relative frequency deviation between TF16 remote station and UTC (NIM)and UTC (NIM)
表 1 TS17时间偏差数据统计
Table 1. TS17 time deviation data statistics
观测站
(REF)观测
点数0<|**|
<5 ns5 ns<|**|
<10 ns10 ns<|**|
<20 ns|**|
>20 nsTS17 7523 7305 190 18 11 97.10% 2.52% 0.23% 0.15% 
下载: 导出CSV
表 2 TF16时间偏差数据统计
Table 2. TF16 time deviation data statistics
观测站
(REF)观测
点数0<|**|
<5 ns5 ns<|**|
<10 ns10 ns<|**|
<20 ns|**|
>20 nsTF16 7496 7338 133 22 3 97.89% 1.78% 0.29% 0.04%
下载: 导出CSV
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