Experiment research of Europe-Asia TWSTFT link

TWSTFT is one of the most precise technique of time and frequency transfer, NIM established TWSTFT system in the year 2008 and participated the Europe-Asia TWSTFT link. We analyze the TWSTFT comparative results of NIM and PTB, TL, NICT. It is shown that Europe-Asia TWSTFT link is stable. The frequency stability(1day) is better than 5 × 10−15. The comparative result of TWSTFT system coincides with GPS system.

[1]  D. W. Hanson,et al.  Fundamentals of two-way time transfers by satellite , 1989, Proceedings of the 43rd Annual Symposium on Frequency Control.

[2]  D. Kirchner,et al.  Two-way time transfer via communication satellites , 1991, Proc. IEEE.

[3]  E. F. Arias,et al.  Atomic time-keeping from 1955 to the present , 2005 .