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http://dx.doi.org/10.7848/ksgpc.2011.29.3.221

A Study on the PRC Generation Algorithms for Virtual Reference Stations Using a Network of DGNSS Reference Stations  

Kim, Hye-In (인하대학교 공과대학 지리정보공학과)
Park, Kwan-Dong (인하대학교 공과대학 지리정보공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.29, no.3, 2011 , pp. 221-228 More about this Journal
Abstract
For service-area-widening and commercialization of DGNSS service, Ministry of Land, Transport and Maritime Affairs is developing a DGNSS service based on VRS using T-DMB. In this study, three PRC generation algorithms are developed for VRS DGNSS and their accuracies were evaluated. Three DGNSS correction generation algorithms are based on inverse distance weighting, 1st- and 2nd- multiple linear regression, and their positioning accuracies were compared in terms of the number of reference stations used for network composition and the algorithm type. As a result, the positioning accuracy of the case of using 16 sites is better than that of 6 sites. And the algorithm using the multiple linear regression showed the best performance. When the positioning accuracy of VRS DGNSS was compared with the traditional single-reference DGNSS, the improvement ratio was 20-23% and 20-36% for the horizontal and vertical directions, respectively.
Keywords
DGNSS; VRS; NTRIP; Positioning Accuracy;
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