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The realization and convergence analysis of combined PPP based on raw observation

  • In order to speed up Precise Point Positioning (PPP)'s convergence, a combined PPP method with GPS and GLONASS which is based on using raw observations is proposed, and the positioning results and convergence time have been compared with that of single system. The ionospheric delays and receiver's Differential Code Bias (DCB) corrections are estimated as unknown parameters in this method. The numerical results show that the combined PPP has not caused significant impacts on the final solutions, but it greatly improved Position Dilution of Precision (PDOP) and convergence speed and enhanced the reliability of the solution. Meanwhile, the convergence speed is greatly influenced by the receiver's DCB, positioning results in horizontal which are better than 10 cm can be realized within 10 min. In addition, the ionosphere and DCB products can be provided with high precision.

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Author details:Rui Tu, Maorong Ge, Hongping Zhang, Guanwen Huang
DOI:https://doi.org/10.1016/j.asr.2013.03.005
ISSN:0273-1177
Title of parent work (English):Advances in space research
Publisher:Elsevier
Place of publishing:Oxford
Publication type:Article
Language:English
Year of first publication:2013
Publication year:2013
Release date:2017/03/26
Tag:Combine; DCB; GPS and GLONASS; Precise Point Positioning; Raw observation
Volume:52
Issue:1
Number of pages:11
First page:211
Last Page:221
Funding institution:China Scholarship Council
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geowissenschaften
Peer review:Referiert
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