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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Kwang Bae (Sungkyunkwan University) Du, Chenghao (Kunsan National University) Lee, Chang Kyung (Kunsan National University)
저널정보
대한공간정보학회 대한공간정보학회지 한국지형공간정보학회지 제24권 제2호
발행연도
2016.6
수록면
47 - 54 (8page)

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초록· 키워드

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This study aims to analyze the accuracy for feasibility study of Network-RTK(VRS) surveying inside and outside of Korean CORS network. The southwest coast of Korea where some part of mainland and islands are outside of CORS network is chosen as the test area. To evaluate the accuracy of VRS surveying at surveying points, several Unified Control Points (UCPs) inside and outside of Korean CORS network were selected as the points in the test area. The feasibility of VRS surveying was analyzed by investigating the errors related to the location of points inside and outside of CORS network and the difference of 3-dimensional coordinates observed on different date. As the results of this study, the orthometric height errors of points outside of CORS network based on KNGeoid14 were improved about 5.0 cm in RMSE in comparison with KNGeoid13. The height errors of VRS surveying were considered to be less relevant to the results from PDOP and number of satellites (GPS and GLONASS). However, the orthometric errors caused by the geoidal height of KNGeoid and the ellipsoidal height of VRS surveying at points located outside of CORS network need to be addressed carefully for control surveying. When a point surveyed twice on different date, the difference of the ellipsoidal height of the point outside of CORS network was larger than that of the point inside of CORS network.

목차

Abstract
1. Introduction
2. Network-RTK(VRS) Surveying in Korea
3. Field Testing
4. Accuracy Analysis of VRS Surveying
5. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2017-452-000796833