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Accuracy Evaluation of VRS RTK Surveys Inside the GPS CORS Network Operated by National Geographic Information Institute  

Kim, Hye-In (인하대학교 사회기반시스템공학부 지리정보공학과)
Yu, Gi-Sug ((주)신한항업 측량팀)
Park, Kwan-Dong (인하대학교 사회기반시스템공학부 지리정보공학과)
Ha, Ji-Hyun (인하대학교 사회기반시스템공학부 지리정보공학과)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.26, no.2, 2008 , pp. 139-147 More about this Journal
Abstract
The positioning accuracies tend to deteriorate as the distance between the rover and the reference station increases in the Real-Time Kinematic (RTK) surveys using Global Positioning System (GPS). To solve this problem, the National Geographic Information Institute (NGII) of Korea has installed Virtual Reference System (VRS), which is one of the network-based RTK systems. In this study, we conducted the accuracy tests of the VRS-RTK surveys. We surveyed 50 control points inside the NGII's GPS Continuously Operating Reference Stations (CORS) network using the VRS-RTK system, and compared the results with the published coordinates to verify the positioning accuracies. We also conducted the general RTK surveys at the same control points. The results showed that the positioning accuracy of the VRS-RTK was comparable to that of the general RTK, because the horizontal positioning accuracy was 3.1 cm while that of general RTK was 2.0 cm. Also the vertical positioning accuracy of VRS-RTK was 6.8 cm.
Keywords
GPS; RTK; VRS; Network RTK; GPS Survey;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
연도 인용수 순위
1 박운용, 이용희, 곽두호, 배경호 (2003), VRS 개념에 기반한 GPS 상시관측소 활용 연구, 2003 한국측량학회 추계학술발표회논문집, pp. 109-113
2 Wanninger, L. (2006), Introduction to Network RTK, IAG Working Group 4.5.1: Network RTK, http://www.network-rtk.info
3 Wanninger, L. (2003), GPS on the Web: Virtual reference stations (VRS), GPS Solutions, Vol. 7, pp. 143-144   DOI
4 SAPOS, http://www.sapos.de/
5 이용창, 강준묵 (2003), GPS 기준망의 가상기준점에 의한 후처리 측위 분석, 2003 한국측량학회 춘계학술발표회 논문집, pp. 55-60
6 최윤수, 이용창, 권재현, 이재원 (2004), GPS 가상기준점 도입에 관한 연구, 한국측량학회지, 제 22권, 제 2호, pp. 105-116
7 국토지리정보원 (2003), 가상기준점(VRS) 도입에 관한 연구
8 국토지리정보원 (2007), 한반도 지각변동 연구
9 이용창 (2003), GPS 상시관측망을 활용한 PDGPS 측위 연구, 대한토목학회지, 제 23권, 제 6D호, pp. 891-900
10 JENOBA, http://www.jenoba.jp/