Demonstrator of Time Services based on European GNSS signals: The H2020 DEMETRA Project

P. Defraigne, P. Tavella, I. Sesia, G. Cerretto, G. Signorile, D. Calonico, R. Costa, C. Clivati, E. Cantoni, C. De Stefano, M. Frittelli, V. Formichella, E. Biserni, V. Leone, E. Zarroli, D. Sormani, M. Gandara, V. Hamoniaux, E. Varriale, Q. MoranteT. Widomski, J. Kaczmarek, J. Uzycki, K. Borgulski, P. Olbrysz, J. Kowalski, A. Cernigliaro, F. Fiasca, A. Perucca, V. Dhiri, M.T. Veiga, T. Suárez, J. Diaz, M. Mangiantini, Anders E. Wallin, L. Galleani, D. Hindley

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

2 Citations (Scopus)


During 2015-2016, a European Consortium of 15 partners from 8 different countries, developed the DEMETRA (DEMonstrator of EGNSS services based on Time Reference Architecture), a project funded by the European Union in the frame of the Horizon 2020 program. This project aims at developing and experimenting time dissemination services dedicated to specific users like traffic control, energy distribution, finance, telecommunication, and scientific institutions. Nine services have been developed. These services provide time dissemination with accuracy levels from millisecond to the sub-ns, and also additional services like certification, calibration, or integrity. Five of these services are based on the European GNSS. After a development phase (see PTTI 2016 presentation) the full DEMETRA system has been working during six months for demonstration. The paper will report about the experimentation results, showing performances and limits of the proposed time dissemination services, aiming to foster the exploitation of the European GNSS for timing applications.
Original languageEnglish
Title of host publicationProceedings of the 48th Annual Precise Time and Time Interval Systems and Applications Meeting, PTTI 2017
PublisherInstitute of Navigation ION
ISBN (Electronic)978-0-936406-18-3
ISBN (Print)978-1-5108-5539-7
Publication statusPublished - 1 Jan 2017
MoE publication typeB3 Non-refereed article in conference proceedings
EventPrecise Time and Time Interval Meeting - Monterey, United States
Duration: 30 Jan 20172 Feb 2017


ConferencePrecise Time and Time Interval Meeting
Abbreviated titlePPTI 2017
Country/TerritoryUnited States


  • time dissemination
  • standardized time services
  • demonstrator
  • timing
  • H2020


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