Research on Frequency Drift Correction Method of Spaceborne Rubidium Atomic Clock

With the characteristics of high short term stability and large frequency drift,Rubidium atomic clock on board navigation satellite need to be compensated and corrected from time to time to highlight its advantage.According to its real trend of frequency drift after power on,different prediction methods were compared.The compensation technical route were proposed for autonomous navigation based on cesium and rubidium assembly.