Research on the Integrated Absolute Calibration of BeiDou Time and Frequency Transfer Chain

LIANG Kun; JIAO Xiangxu; YU Tian

doi:10.11999/JEIT230844

Volume 45 Issue 11

Nov. 2023

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Article Navigation > Journal of Electronics & Information Technology > 2023 > 45(11): 4117-4126

LIANG Kun, JIAO Xiangxu, YU Tian. Research on the Integrated Absolute Calibration of BeiDou Time and Frequency Transfer Chain[J]. Journal of Electronics & Information Technology, 2023, 45(11): 4117-4126. doi: 10.11999/JEIT230844

Citation:

LIANG Kun, JIAO Xiangxu, YU Tian. Research on the Integrated Absolute Calibration of BeiDou Time and Frequency Transfer Chain[J]. Journal of Electronics & Information Technology, 2023, 45(11): 4117-4126. doi: 10.11999/JEIT230844

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Research on the Integrated Absolute Calibration of BeiDou Time and Frequency Transfer Chain

doi: 10.11999/JEIT230844 cstr: 32379.14.JEIT230844

School of Electronics & Information Engineering, Beijing Jiaotong University, Beijing 100044 , China

Funds: The National Key R&D Program of China (2021YFB3900704), The Open Foundation of National Railway Intelligence Transportation System Engineering Technology Research Center

Received Date: 2023-08-04
Rev Recd Date: 2023-10-18

Available Online: 2023-10-23

Publish Date: 2023-11-28

Abstract

Abstract

Global Navigation Satellite System(GNSS) time and frequency transfer has become the most widely used time and frequency transfer technique due to its fine uncertainty level and ease of use. Time and frequency transfer calibration is the key and necessary prerequisite for the accurate transfer of time and frequency values. The seperated absolute calibration technique suffers from complex calibration steps and multiple sources of uncertainty. To address these problems, an integrated absolute calibration technique with fewer implementation steps and fewer sources of uncertainty is proposed in this paper, i.e., an integrated one-time calibration of the BeiDou navigation Satellite system (BDS) time and frequency transfer chain, with lower measurement uncertainty. In this paper, through the research on the integrated absolute calibration method of time and frequency transfer chain, the integrated absolute calibration system and experimental platform of the time and frequency transfer chain are constructed, and the seperated absolute calibration and integrated absolute calibration experiments based on one actual BDS time and frequency transfer chain are realized and their uncertainties are evaluated. The results showed that the consistency of the calibration results under the two methods is better than 1.76 ns, and the synthetic standard uncertainties are 0.80 ns and 1.00 ns respectively.
- Absolute calibration,
- Time and frequency transfer,
- BeiDou navigation Satellite system(BDS)

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References(16)

References

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