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۱Time Influence on Observational Accuracy in Egyptian Virtual Reference Stations Network “VRS”
اطلاعات انتشار: World Applied Sciences Journal، سي و دوم،شماره۱، ۲۰۱۴، سال
تعداد صفحات: ۶
RTK positioning with a single reference station is limited to a distance of about 10 to 15 km. Beyond this distance limit, the errors at the reference and the rover receivers become less correlated (i.e. dissimilar) and would not cancel out sufficiently through the double differencing. This leads to unsuccessful fixing for the ambiguity parameters, which in turn deteriorates the positioning accuracy. The virtual reference station (VRS) concept can help to satisfy this requirement using a network of reference stations. This study represents at first the idea of using VRS, the VRS concept and then the time influence on VRS observations and how the accuracy may vary with respect to the observation time. The research represents the behavior of 5 different points’ observations while they observed for 15, 30, 60, 90 and 120 minutes using Egyptian Virtual Reference Stationnetwork data.
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