Direct comparisons of European primary and secondary frequency standards via satellite techniques

verfasst von
F. Riedel, A. Al-Masoudi, E. Benkler, S. Dörscher, V. Gerginov, C. Grebing, S. Häfner, N. Huntemann, B. Lipphardt, C. Lisdat, E. Peik, D. Piester, C. Sanner, C. Tamm, S. Weyers, H. Denker, L. Timmen, C. Voigt, D. Calonico, G. Cerretto, G. A. Costanzo, F. Levi, I. Sesia, J. Achkar, J. Guéna, M. Abgrall, D. Rovera, B. Chupin, C. Shi, S. Bilicki, E. Bookjans, J. Lodewyck, R. Le Targat, P. Delva, S. Bize, F. N. Baynes, C. F.A. Baynham, W. Bowden, P. Gill, R. M. Godun, I. R. Hill, R. Hobson, J. M. Jones, S. A. King, P. B.R. Nisbet-Jones, A. Rolland, S. L. Shemar, P. B. Whibberley, H. S. Margolis
Abstract

We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-based frequency comparison techniques: broadband Two-Way Satellite Time and Frequency Transfer (TWSTFT) and Global Positioning System Precise Point Positioning (GPS PPP). With an enhanced statistical analysis procedure taking into account correlations and gaps in the measurement data, combined overall uncertainties in the range of 1.8 × 10-16 to 3.5 × 10-16 for the optical clock comparisons were found. The comparison of the fountain clocks yields results with a maximum relative frequency difference of 6.9 × 10-16, and combined overall uncertainties in the range of 4.8 × 10-16 to 7.7 × 10-16.

Organisationseinheit(en)
Institut für Erdmessung
Externe Organisation(en)
Physikalisch-Technische Bundesanstalt (PTB)
Istituto Nazionale di Ricerca Metrologica (INRiM)
Politecnico di Torino (POLITO)
Observatoire de Paris (OBSPARIS)
National Physical Laboratory
Typ
Artikel
Journal
METROLOGIA
Band
57
ISSN
0026-1394
Publikationsdatum
21.07.2020
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Ingenieurwesen (insg.)
Elektronische Version(en)
https://doi.org/10.48550/arXiv.1910.06736 (Zugang: Offen)
https://doi.org/10.1088/1681-7575/ab6745 (Zugang: Geschlossen)
 

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