Accuracy validation of T2L2 time transfer in co-location
| Autor: | Pierre Exertier, J.-M. Torre, Claude Foussard, Etienne Samain, Myrtille Laas-Bourez, Clément Courde, P. Guillemot, Nicolas Martin |
|---|---|
| Přispěvatelé: | Géoazur (GEOAZUR 7329), Université Côte d'Azur (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA), Centre National d'Études Spatiales [Toulouse] (CNES), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Engineering
010504 meteorology & atmospheric sciences Acoustics and Ultrasonics business.industry Space time [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Laser 01 natural sciences law.invention 010309 optics law Telemetry Transfer (computing) 0103 physical sciences Global Positioning System Time transfer Satellite Timer Electrical and Electronic Engineering business Instrumentation 0105 earth and related environmental sciences Remote sensing |
| Zdroj: | IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2015, 62 (2), pp.255-265. ⟨10.1109/TUFFC.2014.006662⟩ |
| ISSN: | 0885-3010 |
| DOI: | 10.1109/TUFFC.2014.006662⟩ |
| Popis: | International audience; The Time Transfer by Laser Link (T2L2) experiment has been developed in close collaboration between Centre National d'Etudes Spatiales and Observatoire de la Côte d'Azur. The aim is to synchronize remote ultra-stable clocks over large-scale distances using two laser ranging stations. This ground to space time transfer has been derived from laser telemetry technology with dedicated space equipment designed to record arrival time of laser pulses on board the satellite. For 3 years, specific campaigns have been organized to prove T2L2 performance. In April 2012, we performed a 2-week campaign with our two laser ranging stations, Métrologie Optique and French Transportable Laser Ranging Station, to demonstrate the T2L2 time transfer accuracy in co-location. We have compared three independent time transfer techniques: T2L2, GPS, and direct measurement, with both an event timer and an interval counter. The most important result obtained in this campaign was a mean agreement between T2L2 and a direct comparison better than 200 ps. This is the first major step to validate the uncertainty budget of the entire T2L2 experiment. This paper focuses on this campaign setup and the obtained results. |
| Databáze: | OpenAIRE |
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