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Analysis of Network-RTK(VRS) Positioning Accuracy for Surveying Public Control Point  

Han, Joong-Hee (서울시립대학교 공간정보공학과)
Kwon, Jay-Hyoun (서울시립대학교 공간정보공학과)
Hong, Chang-Ki (서울시립대학교 공간정보공학과)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.18, no.2, 2010 , pp. 13-20 More about this Journal
Abstract
Currently, NGII(National Geographic Information Institute) provides VRS(Virtual Reference System) service using 44 CORS(Continuously Operating Reference Stations). Since the VRS provides high-precision coordinate in a short time, the users and applications are expected to be rapidly increasing. The accuracy analysis on the VRS service, however, was not sufficiently performed yet. Therefore, in this study, the VRS data is acquired from various circumstances and its accuracy is analyzed. According to analysis, it was concluded that the VRS could be applied to public control point survey. Furthermore, it was found that the PQ(Position Quality) which represents variance of estimated coordinates rather than GDOP(Geometric Dilution of Precision) is more relevant as a factor to determine the accuracy of coordinates. Based on the analysis of data from four manufacturers (TRIMBLE, MAGELLAN, LECIA, TOPCON), it was confirmed that the standard deviations better than 3cm. Therefore, VRS Survey apply to public control point survey.
Keywords
VRS Survey; CORS; PQ(Position Quality); Public control point survey;
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Times Cited By KSCI : 1  (Citation Analysis)
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