Precise and Continuous Time and Frequency Transfer with Carrier Phase Compensation in Satellite Ground Link

H.J. Liang, S.G. Wang, S.C. Sun, Y. Bai, and L.J. Wang

Abstract: In this paper, we establish a satellite-ground link on Ku band to transfer frequency in free space. A new method based on active carrier phase compensation is introduced to make up the phase fluctuation caused in the link. Two phase locked frequency signals with close frequency point are transferred in one same link so that most common mode phase noise can be eliminated by difference. We measure these frequency signals at the ground station and the remaining phase error of the difference signal is about 0.15rad, equals less than 200ps time jitter through an over 70,000km distance dissemination in free space. We also calculate the stability of transmission with this carrier phase compensation method over 6 days. The result is 2.3e-14 within an integration time of 10,000s.
Published in: Proceedings of the 2020 International Technical Meeting of The Institute of Navigation
January 21 - 24, 2020
Hyatt Regency Mission Bay
San Diego, California
Pages: 1084 - 1089
Cite this article: Liang, H.J., Wang, S.G., Sun, S.C., Bai, Y., Wang, L.J., "Precise and Continuous Time and Frequency Transfer with Carrier Phase Compensation in Satellite Ground Link," Proceedings of the 2020 International Technical Meeting of The Institute of Navigation, San Diego, California, January 2020, pp. 1084-1089.
https://doi.org/10.33012/2020.17199
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