The Repeatability Test of BDS Baseline Processing
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.
KeywordsBeiDou navigation satellite system (BDS) Baseline processing Repeatability test Precision evaluation
This study is funded by the National Natural Science Fund (41404034/41304030) and the International GNSS monitoring and assessment system (GFZX0301040308-06). This work is also supported by the fundamental research funds of Chinese Academy of Surveying and Mapping (7771405/7771416) and the Key Laboratory of Surveying and Mapping Technology on Island and Reef, National Administration of Surveying, Mapping and Geo information (2013B01). Besides, this paper is also funded by Ministry of Science and Technology Support Program (2012BAB16B01) and Ministry of Science and Technology 863 plan (2013AA122501) and Geospatial Information Engineering Laboratory of National Administration of Surveying, Mapping and Geoinformation project funding (201301).
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