공공기준점 측량에 적용을 위한 VRS(가상기준점) 방식의 Network-RTK 정확도 분석

다국어 초록 (Multilingual 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.

참고문헌 (Reference)

1 국토지리정보원, "실시간 정밀 GNSS 측량"

2 국토지리정보원, "가상기준점(VRS) 도입에 관한 연구" 국토지리정보원 2003

3 김감래, "VRS를 활용한 Network RTK의 지적측량 활용방안" 한국지적정보학회 11 (11): 89-99, 2009

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