STUDY OF THE PERFORMANCE OF RUBIDIUM FRQUENCY STANDARD IN VACUUM ENVIRONMENT

Rubidium frequency standard is one of the major atomic frequency standards for satellite global navigation positioning system.On-board rubidium frequency standard operate in vacuum environment after launching.Research on the behavior of rubidium frequency standard in vacuum environment is important for the development of satellite navigation positioning system.In this article,the performance of rubidium frequency standard in vacuum was analyzed,including frequency stability,frequency accuracy and frequency drifting,for the application purpose.It will be useful to improve the performance of rubidium frequency standard in space.