Frequency scales generated from carrier-phase GPS data

Author

Senior, Ken ; Matsakis, Demetrios ; Breakiron, Lee

Author_Institution

US Naval Obs., Washington, DC, USA

fYear

2000

fDate

2000

Firstpage

629

Lastpage

636

Abstract

The calibrated carrier-phase GPS technique promises time transfer between remote sites with 5-minute precision approaching 20 ps. Uncalibrated time transfers between many sites are routinely made available by the Earth Orientation Department of the U.S. Naval Observatory (USNO). Although important technical issues involving long-term accuracy and calibration are still being resolved, it is possible to generate sample time and frequency scales so as to anticipate the full power of the technique. Using minor extensions of the USNO´s postprocessed extended-Percival algorithm SuperP (1998), a carrier-phase-based frequency scale is generated and compared to local USNO timescales

Keywords

Global Positioning System; calibration; frequency standards; time measurement; timing; transfer standards; 20 ps; 20 ps precision; Earth Orientation Department; SuperP; U.S. Naval Observatory; calibration; carrier-phase GPS data; carrier-phase-based frequency scale; extended-Percival algorithm; frequency scale; frequency standard; local USNO timescales; long-term accuracy; remote sites; sample time; time transfer; Calibration; Clocks; Data analysis; Earth; Frequency estimation; Frequency synchronization; Global Positioning System; Observatories; Power generation; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium and Exhibition, 2000. Proceedings of the 2000 IEEE/EIA International

Conference_Location

Kansas City, MO

ISSN

1075-6787

Print_ISBN

0-7803-5838-4

Type

conf

DOI

10.1109/FREQ.2000.887427

Filename

887427