Number of the records: 1  

Local ties controlin application of laser time transfer

  1. 1.
    SYSNO ASEP0396964
    Document TypeC - Proceedings Paper (int. conf.)
    R&D Document TypeConference Paper
    TitleLocal ties controlin application of laser time transfer
    Author(s) Kodet, J. (CZ)
    Schreiber, U. (DE)
    Eckl, J. (DE)
    Procházka, I. (CZ)
    Pánek, Petr (URE-Y) RID
    Number of authors5
    Source TitleProceeding 2013 Joint European Frequency and Time Forum and International Frequency Control Symposium, EFTF/IFC 2013. - Praha : IEEE, 2013 - ISBN 9781479903429
    Pagess. 81-85
    Number of pages5 s.
    Publication formMedium - C
    Action2013 Joint UFFC, EFTF and PFM Symposium
    Event date21.07.2013-25.07.2013
    VEvent locationPrague
    CountryCZ - Czech Republic
    Event typeWRD
    Languageeng - English
    CountryCZ - Czech Republic
    Keywordstime comparison ; event timing ; two way time transfer
    Subject RIVJA - Electronics ; Optoelectronics, Electrical Engineering
    Institutional supportURE-Y - RVO:67985882
    EID SCOPUS84893253457
    DOI10.1109/EFTF-IFC.2013.6702166
    AnnotationIn many fundamental physical experiments time plays an important role. The standard way for the comparison of time and frequency is the application of GNSS signals and the Two-Way Satellite Time and Frequency Transfer - TWSTFT. This technique is based on radiofrequency signal transmission. Recently, there was a rapid increase of optical time comparison development, which uses the Satellite Laser Ranging network (SLR). Currently the French project T2L2 is in operation on board of Jason 2 and the European Space Agency project ELT in support of the Atomic Clock Ensemble in Space (ACES) is under development. The goal of both projects is the time synchronization with a precision below 40 ps rms and an absolute error well below 100 ps. Comparing the results of the optical time transfer with the GNSS time comparison requires unprecedented control of the local ties between the different observation techniques. One of the possible methods is the application of the Two Way Time Transfer (TWTT) on a single coaxial cable. Such a system can be implemented using two or more event timers, which are interconnected by a standard coaxial cable.
    WorkplaceInstitute of Radio Engineering and Electronics
    ContactPetr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488
    Year of Publishing2014