Chapter 9 The Repeatability Test of BDS Baseline Processing

摘要

BeiDou Navigation System (BDS) has already covered all areas in our country. Getting high precision positioning results becomes hot topic in the research of BDS. This paper calculates parts of BDS baseline observation data from Hebei Province, and the results indicate the BDS system is stable, the external compliance precision of plane is within 1 cm, and the precision of elevation is about 4 cm, meeting the requirements of the precision of the control network of national grade B, the differences of precision for the same baseline results is limited in 5 mm, and the unit weight variance value and RMS error precision indicators also meet the specification requirements.