• Title/Summary/Keyword: trilateral network adjustment

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An Analysis on the Results of Cadastral Coordinate Computation of Urban Control Point for Connection to Cadastral Control Point -A Case Study of Changwon-si of Kyungnam- (지적기준점과 연계 활용을 위한 도시기준점의 지적좌표 성과산출 분석 - 경상남도 창원시를 중심으로-)

  • Hong, Sung-Eon
    • Journal of Korean Society for Geospatial Information Science
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    • v.19 no.4
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    • pp.127-138
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    • 2011
  • This study aimed at suggesting the possibility of an application that connects cadastral control point and urban control point. In order to do this, we calculated and analyzed the cadastral coordinate on urban control point by using the GPS observation data of Changwon-si urban control point (32 points) which was announced based on the result of global coordinate system. We calculated cadastral coordinate through using three different kinds of calculation S/Ws, and compared the results of the calculation with the preexisting result of urban control point. The comparison suggested that the gap between the new results and the existing results is in the range of error specified by a law. Therefore, the result can be used in cadastral surveying. However, for the safe application in practical works, we suggested that it would be better to carry out new cadastral surveying and use its result than to use the result of the current urban control point directly in surveying cadastral. In addition, we suggested that it is necessary to examine precisely the local station of triangulation. Finally, we recommended that one should use trilateral network adjustment S/W as one's calculation S/W.