A direct comparison between two independently calibrated time transfer techniques: T2L2 and GPS common-views

Author

Rovera, G.D. ; Abgrall, M. ; Courde, Clement ; Exertier, Pierre ; Fridelance, P. ; Guillemot, Philippe ; Laas-Bourez, Myrtille ; Martin, Nicolas ; Samain, Etienne ; Sherwood, R. ; Torre, Jean-Marie ; Uhrich, P.

Author_Institution

LNE-SYRTE, UPMC, Paris, France

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

666

Lastpage

667

Abstract

This paper presents a direct comparison of two time transfer techniques on independently calibrated links: Time Transfer by Laser Link (T2L2) and Global Positioning System (GPS) satellite common-views (CV). The two different techniques are described, along with the independent link calibrations. The results achieved during one measurement campaign involving three European laboratories are presented, the differences between the two techniques remaining in average below 300 ps, with a standard-deviation below 500 ps mostly due to GPS CV.

Keywords

Global Positioning System; calibration; laser ranging; time measurement; European laboratory; GPS; Global Positioning System; T2L2 technique; independent link calibration; measurement campaign; satellite CV; satellite common-view; time transfer by laser link technique; Calibration; Global Positioning System; Measurement by laser beam; Receivers; Satellites; Time measurement; Uncertainty; GPS common-views; T2L2; time scales; time transfer; uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898561

Filename

6898561