ATOMIC CLOCK PREDICTION FOR THE GENERATION OF A TIME SCALE

摘要

In the generation of a time scale, the prediction of the atomic clock behaviour plays an important role. The international time reference "Universal Coordinated Time" (UTC) is in fact available a posteriori, while the national time scales are realised in real time and they need to be good local approximations of the international UTC. In this case a prediction of the local clock behavior for a period of about 45 days is needed. In this paper two methods to predict are presented; extrapolation from past data and study of the stochastic behavior of the atomic clock error.