Testing and Evaluation for the Atomic Clock in Different Location
- DOI
- 10.2991/3ca-13.2013.24How to use a DOI?
- Keywords
- Test; performance evaluation; GPS CV
- Abstract
The national standard time, UTC NTSC kept by NTSC takes part in the international time comparison for a long time, which has high stability and accuracy. It can test and evaluate the atomic clock in different location through the technology of remote time comparison. In the BPL system, time-frequency standard is generated by the cesium atomic clock whose performance has a direct impact on time service precision. In addition, according to the international telecommunications union (ITU) requirement, broadcasting clock is needed to keep to the UTC within 100ns. In this paper, the testing criteria, data collection, processing method, performance evaluation parameter and calculation model are studied. Relying on the high-performance time standard of NTSC and the GPS CV link, the BPL broadcasting clock testing and evaluation system is set up, the time difference of broadcasting clock and UTC (NTSC) is got, and the time difference of broadcasting clock and UTC is got through the international time comparison link of NTSC. According to the all kinds of data, the performance of broadcasting clock is evaluated, the results shows that the broadcasting clock stability reach to the 3.3e-14 a day, 1.7e-14 in 5 days, the time deviation to UTC is within 20ns.
- Copyright
- © 2013, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Wei Li AU - Yongliang Xu AU - Shifeng Li PY - 2013/04 DA - 2013/04 TI - Testing and Evaluation for the Atomic Clock in Different Location BT - Proceedings of the 2nd International Symposium on Computer, Communication, Control and Automation PB - Atlantis Press SP - 94 EP - 97 SN - 1951-6851 UR - https://doi.org/10.2991/3ca-13.2013.24 DO - 10.2991/3ca-13.2013.24 ID - Li2013/04 ER -