Data Analysis and Research Based on Time-frequency Data Platform

Time-frequency data resources are important national information resources. The design of the time-frequency data platform relies on the time-frequency data generated by the daily operation of the National Time Service Center, the bulletin issued by Bureau International des Poids et Mesures (BIPM) and International Earth Rotation and Reference Systems Service (IERS). The data platform can provide abundant data resources for the research of time-keeping technology.This paper first introduces the construction of the time-frequency data platform, and then uses the local time-keeping system comparison and long-distance link comparison data collected by the data platform to carry out time-keeping technology research, including the evaluation of the state of the atomic clock, and the analysis of the abnormal jump of the atomic clock. For different types of time-keeping clock, the authors analyze and compare the performance indicators of atomic clocks such as fluctuation and stability, and conduct clock difference prediction research based on the ARIMA model. The research contents of those different aspects can provide important references for the continuous and reliable operation of the time-keeping system.