NDLI: Recent Development and Utilization of Two-Way Satellite Time and Frequency Transfer

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Recent Development and Utilization of Two-Way Satellite Time and Frequency Transfer

Content Provider	Springer Nature Link
Author	Lin, H. T. Huang, Y. J. Tseng, W. H. Liao, C. S. Chu, F. D.
Copyright Year	2012
Abstract	TWSTFT (Two Way Satellite Time and Frequency Transfer) has been developed for a long time, and has become one of the most precise and accurate techniques for comparison of the frequency standards located at remote sites. Since 1999, TWSTFT has been used in TAI (International Atomic Time) generation. More than two-thirds of TAI clocks and almost all the primary frequency standards are transferred using TWSTFT. To increase the time transfer precision and stability, several calibration methods were developed and the possible instability sources were investigated. Due to the high redundancy of the time transfer links and quick developments of independent time transfer techniques (e.g. GPS), much utilization was proposed to enhance the robustness, to reduce the uncertainty, and to reduce the diurnal effect of TWSTFT. For example, one can adopt the concept of network time transfer to improve the short term stability, or combine the data of different time transfer techniques to take their advantages. The numerical results of network time transfer are very promising. For the future development, a newly developed DPN-based TWSTFT method shows competitive performance with the GPS PPP and much less diurnals than the conventional TWSTFT. It is a very promising method for the next-generation TWSTFT. This paper will give an overview of the above topics.
Starting Page	13
Ending Page	22
Page Count	10
File Format	PDF
ISSN	09703950
Journal	MAPAN
Volume Number	27
Issue Number	1
e-ISSN	09749853
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-04-18
Publisher Institution	Metrology Society of India
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	TWSTFT SATSIM DPN Multi-technique-network Mathematical Methods in Physics Measurement Science and Instrumentation Numerical and Computational Physics Theoretical, Mathematical and Computational Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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