Data quality analysis system research based on Beidou CORS

The invention discloses a data quality analysis system research based on Beidou CORS, and relates to the field of satellite navigation systems, in particular to a global navigation satellite system and a Beidou ground-based augmentation system. The problems that in the prior art, real-time data quality analysis cannot be carried out, the user distance equivalent error of each base station cannot be calculated, and the broadcast ephemeris precision of each satellite navigation system cannot be evaluated are solved. The system comprises a real-time data quality analysis module and an after-event data quality analysis module, the real-time data quality analysis module is used for obtaining real-time data by decoding PTCM3.3 real-time streaming data, and is also used for analyzing the quality of the real-time data, and the real-time data comprises a reference station conventional index and a global service performance index; the post-event data quality analysis module is used for obtaining post-event data by read