Kodowe pozycjonowanie różnicowe GPS+GLONASS

This paper presents the essential issues and problems associated with differential code GPS+GLONASS positioning. The major limitations and methods of their elimination are described, as well as the advantages resulting from the application of the presented method. Theoretical considerations were verified with the postprocessed observations gathered during a six-hour measurement. The data from selected reference stations of the ASG-EUPOS system was used in the calculations. The examinations showed that the method of the differential GPS+GLONASS positioning allows to achieve higher accuracy and precision, as well as improves the stability of coordinate determination in the time domain, in comparison to the positioning that uses only GPS system. However it does not eliminates influence of the systematic errors. Nevertheless, presented results allow to conduct research on application of this method in a navigation, Geographic Information Systems or localization services.