On improved GPS-based calibration of the time links between metas and PTB

Author

Feldmann, Thorsten ; Bauch, A. ; Piester, D. ; Stefanov, Alexandru ; Bernier, L.-G. ; Schlunegger, Christian ; Liang, Kuo-Yun

Author_Institution

Phys.-Tech. Bundesanstalt PTB, Braunschweig, Germany

fYear

2010

fDate

13-16 April 2010

Firstpage

1

Lastpage

8

Abstract

We report the results of a differential calibration of the time links between the Swiss Federal Office of Metrology (METAS) and the German Physikalisch Technische Bundesanstalt (PTB) in 2009 using a travelling state of the art GPS time and frequency transfer receiver. Neglecting possible long term variations of the GPS equipment, the estimated uncertainties of the calibration values are below 2 ns for all links. The results are verified by comparing them to the calibrated two way satellite time and frequency transfer (TWSTFT) link. Thereby it appears that, vice versa, a GPS calibration via a travelling receiver can indeed be used to calibrate a TWSTFT link with an uncertainty below 2 ns.

Keywords

Global Positioning System; calibration; measurement; GPS-based calibration; German Physikalisch Technische Bundesanstalt; METAS; PTB; TWSTFT link; frequency transfer receiver; time links; time transfer receiver; travelling receiver;

fLanguage

English

Publisher

ieee

Conference_Titel

EFTF-2010 24th European Frequency and Time Forum

Conference_Location

Noordwijk

Print_ISBN

978-1-4673-5970-2

Type

conf

DOI

10.1109/EFTF.2010.6533668

Filename

6533668