Název: Local ties controlin application of laser time transfer
Autoři: Kodet, J. ; Schreiber, U. ; Eckl, J. ; Procházka, I. ; Pánek, Petr
Typ dokumentu: Příspěvky z konference
Konference/Akce: 2013 Joint UFFC, EFTF and PFM Symposium, Prague (CZ), 2013-07-21 / 2013-07-25
Rok: 2013
Jazyk: eng
Abstrakt: In 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.
Klíčová slova: event timing; time comparison; two way time transfer
Zdrojový dokument: Proceeding 2013 Joint European Frequency and Time Forum and International Frequency Control Symposium, EFTF/IFC 2013, ISBN 9781479903429

Instituce: Ústav fotoniky a elektroniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0224644

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-170621


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav fotoniky a elektroniky
Konferenční materiály > Příspěvky z konference