Utilisation du GPS pour la réalisation de l' échelle du temps atomique francais TA(F)

摘要

The aim of this paper is to show the state of the art at the BNM-LPTF of the clock comparisons using observations in com-mon-view of the GPS satellites, the precautions taken to insure the traceability and the checking of the stability of the BNM-LPTF's reference receiver Thanks to the quality of the clock comparisons obtained by this method, the improvement of the performances of the commercial cesium frequency standards, and the recasting of the algorithm which calculates the "Temps Atomique Erancais" TA(F), it is showed the large improvement of the stability and the accuracy of the frequency of the french atomic scale which is the national reference for the time and frequency calibrations.