The article presents the results of research on the positioning accuracy of an aircraft using the GPS and EGNOS systems. Experimental flights were conducted in 2010 in the south-eastern part of Poland, in Dęblin and Chełm. The precise flight trajectory was determined using dual-frequency geodetic receivers, brand Topcon, with centimeter accuracy. The reference position was compared with data recorded by two navigation receivers – Thales MobileMapper operating in autonomous mode and EGNOS.Theoretically, EGNOS should increase the accuracy of GPS positioning to about 3 meters. As the conducted research shows, in Poland – especially in the eastern part – this value is lower, because the system does not provide corrections for some of the satellites visible over Poland. This article describes the course of the research and presents the results from two flights with a Cessna aircraft performed east of
Warsaw, where EGNOS corrections are only partial. (…)
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Source: Logistics Magazine