The accuracy of DGPS surveys on the basis of test measurements with a Leica GS20 receiver

摘要

In our article we deal with studying the accuracy of DGPS surveys. The test measurements focussed on this purpose with a LEICA GS20 GPS receiver were very useful for us for various reasons. Firstly, we got acquainted with the operation of a hand-held GIS GPS receiver which is considered to be a relatively new one on the market and the usage of the appropriate post-processing software, secondly when analyzing the results we studied the improving accuracy of our test measurements performed with a single receiver using various corrections. Accordingly, ground corrections originated from PENC control station were considered on the one hand, on the other hand EGNOS corrections were applied when we formed an opinion of the problem raised in the title of this study.