도서지역 기준점의 정확도 해석에 의한 측지 기준망 활용

Abstract

Ground control point is important element for precise positioning. Recently, surveying connected with setting up of ground control point by GPS, analysis of world geodetic coordinate system (ITRF), and information techniques(ie : GIS, UIS, LIS, ITS, Ubiquitous, etc.) by means of transformation of positioning data are rapidly developing for generation of informations and land use planning on national projects. This study present device to increase effectiveness to apply geodetic control network by analysis of problems for accuracy of ground control points for JEJU in island area. We have obtained the following results for feasible application of present ground control points and land use planning by means of GPS and calculate new coordinates. First, We have distinguished that possibility estimate relation of coincidence between triangulation points in JEJU and triangulation points exceed duplicate results and tolerance on same triangulation points. Second, We have presented tolerance limit of triangulation points that now recognize good results and possibility of application when world geodetic coordinate system is converted. Third, We could confirm that disparity between digital map made by RTK-GPS surveying and conventional cadastral map cause disparity of conventional triangulation points. Thus, main result of this study is that direction to accomplish rationally present on planning of land use in JEJU to apply geodetic control network using coincidence between triangulation points in JEJU and accuracy analysis of ground control points.