Browsing by Subject "NAWGEO service"

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Access status: Open Access ,
Analysis of accuracy of determination of eccentric point coordinates of the KRAW permanent geodetic station in RTK GPS measuring mode with the application of the NAWGEO service of the ASG-EUPOS system
(2012) Krzyżek, Robert; Skorupa, Bogdan
A short analysis of the behaviour of the spatial coordinates of eccentric points KRA8 and KRA9 of the KRAW permanent geodesic station in the ASG EUPOS system over time was conducted. Measurements were conducted on eccentric points in real time in RTK GPS mode, over several measuring cydes. Two GPS receivers of various manufacturers were applied for research measurements. Obtained measurement results - spatial coordinates - were related to values accepted as error free, obtained from the ETRV 2000 measuring campaign.
Access status: Open Access ,
Analysis of coordinates time series obtained using the NAWGEO service of the ASG-EUPOS system
(2011) Kudrys, Jacek; Krzyżek, Robert
The NAWGEO service of the ASG-EUPOS system is practically the most often used by geodesists. The accuracies of determining coordinates using the NAWGEO service as declared on ASG-EUPOS internet pages are 3 cm horizontally and 5 cm vertically. In this work, on the basis of conducted measuring tests executed in optimal conditions, the authors verify the capabilities for determining point coordinates with a given accuracy depending on the method of measurement and the type of corrections used. The presented results confirm the capability for obtaining high accuracies of determined coordinates in case of optimal measuring conditions. In the case of unfavorable measuring conditions, the achieved accuracy (repeatability) of determining coordinates is significantly worse.