Analysis on Efficient Global Data Transmission and Timeliness of FY-3E Satellite

The in-orbit network observation and data recording and playback of Fengyun-3 is limited by the configuration of domestic ground stations and the Antarctic station, which may potentially affect the integrity and timeliness of global data reception. This paper expounds the autonomous program control design of global data recording and playback of FY-3E satellite and the efficient data processing and transmission process, establishes a data timeliness simulation analysis model and analyzed the timeliness of payload data acquisition under different strategies of data playback toward Antarctic station. The analysis results and experimental verification show that the integrity and timeliness of global data acquisition can be ensured by optimizing the use frequency of the Antarctic station.