Evaluation of state-of-the-art geodetic GPS receivers for frequency comparisons

authored by: U. Weinbach, S. Schön, T. Feldmann
Abstract: In this paper we show results of a test campaign, designed to investigate the stability of GPS receiver clocks locked to an external frequency source. Two types of geodetic receivers and one timing receiver have been compared. The receivers were operated in pairs in zero and short baseline setups with common reference frequency. Care was taken to minimize environmental effects. The observation data were processed using both a simple carrier phase single difference algorithm and the Bernese GPS Software 5.0 in Precise Point Positioning (PPP) mode. Some shortcomings of previous studies in terms of receiver equipment and the experimental setup of the short baseline could be avoided. It is shown that using geodetic receivers and the ionosphere-free linear combination of the carrier phase observations, frequency comparisons at a level of σy(τ)=2·10-16 for averaging times of one day are feasible on a zero baseline, i.e. if all environmental effects are eliminated.
Organisation(s): Institute of Geodesy
External Organisation(s): Physikalisch-Technische Bundesanstalt PTB
Type: Conference contribution
Pages: 263-268
No. of pages: 6
Publication date: 21.07.2009
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Hardware and Architecture, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials
Electronic version(s): https://doi.org/10.1109/FREQ.2009.5168182 (Access: Unknown)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{734c3d64d8ac40938d2c034ba86fbb66,
title = "Evaluation of state-of-the-art geodetic GPS receivers for frequency comparisons",
abstract = "In this paper we show results of a test campaign, designed to investigate the stability of GPS receiver clocks locked to an external frequency source. Two types of geodetic receivers and one timing receiver have been compared. The receivers were operated in pairs in zero and short baseline setups with common reference frequency. Care was taken to minimize environmental effects. The observation data were processed using both a simple carrier phase single difference algorithm and the Bernese GPS Software 5.0 in Precise Point Positioning (PPP) mode. Some shortcomings of previous studies in terms of receiver equipment and the experimental setup of the short baseline could be avoided. It is shown that using geodetic receivers and the ionosphere-free linear combination of the carrier phase observations, frequency comparisons at a level of σy(τ)=2·10-16 for averaging times of one day are feasible on a zero baseline, i.e. if all environmental effects are eliminated.",
author = "U. Weinbach and S. Sch{\"o}n and T. Feldmann",
year = "2009",
month = jul,
day = "21",
doi = "10.1109/FREQ.2009.5168182",
language = "English",
isbn = "9781424435104",
series = " Joint Conference of the IEEE International Frequency Control and the European Frequency and Time Forum",
pages = "263--268",
booktitle = "2009 IEEE International Frequency Control Symposium Joint with the 22nd European Frequency and Time Forum",
note = "2009 IEEE International Frequency Control Symposium Joint with the 22nd European Frequency and Time Forum ; Conference date: 20-04-2009 Through 24-04-2009",
}