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Refinement of BeiDou satellite antenna phase center correction model and its impact on precision orbit determination and positioning
- Source :
- Acta Geodaetica et Cartographica Sinica, Vol 49, Iss 9, Pp 1101-1111 (2020)
- Publication Year :
- 2020
- Publisher :
- Surveying and Mapping Press, 2020.
-
Abstract
- Aiming at the lack of high accurate antenna phase correction (PCC) model for the BDS-2 IGSO and MEO satellites, in the BDS-2 and BDS-3 satellites joint precision orbit determination (POD) and precise point positioning (PPP), in this paper, an improved method for estimating PCV and z-offset parameters is used to refine the B1I/B3I ionosphere-free linear combination PCC model for the BDS-2 IGSO and MEO satellites. Compared with the results obtained using the ground-calibrated PCO model published by BeiDou official, the STD of SLR residuals obtained by the POD using the refined PCC model is reduced by 0.6~2.4 cm, and the improvement percentage is about 8.6%~33.3%. The floating PPP solution results, based on the refined BDS-2 satellite PCC model in this paper and the existing BDS-3 PCC model, have been significantly improved by 9.5 mm (37.2%) in the elevation direction.
Details
- Language :
- Chinese
- ISSN :
- 10011595
- Volume :
- 49
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- Acta Geodaetica et Cartographica Sinica
- Accession number :
- edsair.doajarticles..05e48d3f5523482f6817e71b80d606ce