Ground-to-satellite time and frequency synchronization link with active carrier phase compensation.In this paper, a synchronization link between one ground station and one geostationary satellite is established.  The ground station receives retransmitted signals from the satellite, measures phase delay along the propagation route, and actively compensates back to its sending signals, realizing real-time phase fluctuation compensation.  The proposed ground-to-satellite link and active compensation method has potential applications in frequency standard dissemination to remote receivers (including ground stations or satellites). 
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