Features the used of microwave quantum frequency standard on rubidium atoms – 87 in systems of time synchronization for space system communication
A S Grevtseva, Vadim V. Davydov, Roman Dmitriev, Vasily Rud · The 5th International Conference on Future Networks & Distributed Systems · 2021
The main problems arising during the operation of satellite information systems during the transmission of large amounts of information are considered. It is noted how the disadvantages of the current design of the quantum frequency standard based on rubidium-87 atoms influence the operation of the information transmission system. It is noted that the greatest instabilities during long-term operation of the quantum frequency standard are introduced by processes associated with light shifts in the optical part. Frequency stability decreases, synchronization of time scales of various communication satellites deteriorates. This leads to an increase in the number of errors in the transmission of information. A solution is proposed to improve the metrological characteristics of the rubidium frequency standard. The results of experimental studies of the operation of a satellite information transmission system are presented.