A three-cornered hat analysis of instabilities in two-way and GPS carrier phase time transfer systems

Author:

Parker T EORCID,Zhang VORCID,Petit GORCID,Yao JORCID,Brown R CORCID,Hanssen J L

Abstract

Abstract A three-cornered hat analysis has been performed on three independent time transfer systems between the United States Naval Observatory (USNO) and the National Institute of Standards and Technology (NIST). These include (1) a direct Two-Way Satellite Time and Frequency Transfer (TWSTFT) link provided by the USNO, (2) an indirect TWSTFT link, and (3) GPS carrier phase (GPSCP) links. Time transfer instabilities for individual links, as quantified with the time deviation and TOTAL time deviation, have been measured for the first time for averaging periods between 2 h and 85 days. Time transfer instabilities beyond one day are roughly flicker phase in nature and generally range between 40 ps and 120 ps. Frequency transfer instabilities, as quantified by the modified Allan deviation, are observed to be as low as 1 × 10−16 for a 20 day comparison and into the mid 10−17 range at longer comparison times.

Publisher

IOP Publishing

Subject

General Engineering

Reference20 articles.

1. Improving two-way satellite time and frequency transfer with redundant links for UTC generation;Jiang;Metrologia,2019

2. A method for estimating the frequency stability of an individual oscillator;Gray,1974

3. Towards the optical second: verifying optical clocks at the SI limit;McGrew;Optica,2019

4. A 920 km optical fiber link for frequency metrology at the 19th decimal place;Predehl;Science,2012

5. Two-way satellite time and frequency transfer (TWSTFT): principle, implementation, and current performance;Kirchner,1999

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