Relativistic corrections for intersatellite frequency transfer

Bethany Kroese, Gabriele Giorgi, Christoph Günther

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations


Highly accurate time and frequency synchronization is crucial for navigation. Constant improvements in clock technology enable more precise systems. This in turn places stricter demands on coordination and dissemination of timescales. This paper is motivated by an interest in evaluating future concepts for GNSS (Global Navigation Satellite System) constellations. Within the field of space-based time and frequency transfer, intersatellite links are of high interest for GNSS clock synchronization. In addition to synchronizing clocks, these links can improve orbit determination through precise ranging. Transmissions resolve time and frequency information (i.e. clock offsets and drifts) by modeling satellite orbit effects and propagation delays. In order to fully capitalize on the stability of next-generation space clocks, relativistic corrections must be described to a high level of precision and satellite positions must be accurately known.

Original languageEnglish
Title of host publication2018 European Frequency and Time Forum, EFTF 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)9781538656204
StatePublished - 9 Jul 2018
Externally publishedYes
Event2018 European Frequency and Time Forum, EFTF 2018 - Torino, Italy
Duration: 10 Apr 201812 Apr 2018

Publication series

Name2018 European Frequency and Time Forum, EFTF 2018


Conference2018 European Frequency and Time Forum, EFTF 2018


  • clock synchronization
  • frequency transfer
  • intersatellite links
  • relativity corrections


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