EURAMET Project 1156, GPSCALEU: Results of two years GPS receiver calibration campaign

Author

Esteban, Hector ; Palacio, J. ; Bauch, A. ; Piester, D. ; Cerretto, Giancarlo ; Feldmann, Thorsten

Author_Institution

Time Dept., Real Inst. y Observatorio de la Armada (ROA), San Fernando, Spain

fYear

2012

fDate

23-27 April 2012

Firstpage

354

Lastpage

360

Abstract

Since 2010 ROA has supported the coordination of the EURAMET Technical Committee for Time and Frequency (TC-TF) Project 1156, GPSCALEU, a reaction from EURAMET TC-TF to Recommendation 2 of CCTF 2009: to study the characterization of GNSS equipment in use for establishing the time links between institutes contributing with their clocks to TAI. Starting that year, it was organized a GPS calibration campaign between three contributing laboratories: ROA (Spain), PTB (Germany) and INRIM (Italy). The time transfer results were achieved by using P3, and also carrier phase PPP comparison techniques. These results were also used to re-calibrate the TWSTFT (Two-Way Satellite Time and Frequency Transfer, TW for short) links between the involved laboratories, with an uncertainty slightly higher than GPS links.

Keywords

Global Positioning System; atomic clocks; calibration; frequency measurement; measurement uncertainty; radio receivers; satellite links; time measurement; EURAMET Project 1156; GNSS equipment; GPS link; GPS receiver calibration; GPSCALEU; INRIM; PTB; ROA; TAI; TWSTFT; atomic clock; carrier phase PPP comparison; measurement uncertainty; time link; time transfer; two way satellite time and frequency transfer;

fLanguage

English

Publisher

ieee

Conference_Titel

European Frequency and Time Forum (EFTF), 2012

Conference_Location

Gothenburg

Print_ISBN

978-1-4673-1924-9

Type

conf

DOI

10.1109/EFTF.2012.6502400

Filename

6502400