49. INTEGRATION OF GPS, GLONASS AND GALILEO SYSTEMS IN PRECISE REAL-TIME SATELLITE MEASUREMENTS
Global Navigation Satellite System (GNSS) are currently used in a wide spectrum of areas of life and economy such as: navigation, geodesy, geodynamics, precise agriculture, geographic information systems, rescue services and many more. The main goal of the work was the analysis of the impact of attaching observations from GLONASS and Galileo satellites on the results of satellite positioning in comparison to positioning based only on the GPS system. The paper presents the benefits resulting from the use of a combination of GPS and GLONASS or GPS, GLONASS and Galileo systems in relation to a single GPS system. The improvement of satellite conditions of the observation site was shown as a result of the increase in the number of observed satellites. Geodetic measurements with the use of integrated satellite navigation systems enable determination of the position on the areas where it was up to now impossible due to the large overrides of the horizon. The integration of positioning systems also affects the convergence time and contributes to the improvement of the accuracy and reliability of the determined coordinates using the real-time measurement technique. Moreover, it has been shown that there are some systematic errors in RTK measurements, which should be eliminated in order to obtain precise measurement results. As the research has shown, this applies in particular to heights measurement. The developed research methods will be able to be used for positioning studies based on other scenarios of systems integration, e.g. GPS, GLONASS, Galileo and BeiDou.
Listing Details
- AuthorZbigniew Siejka
- AffiliationUniversity of Agriculture, Krakow
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