Abstract

The main purpose of the present study was to investigate coordinate transformation based on two different systems: one was the World Geodetic System 1984(WGS84) adopted as a reference system for GPS satellite surveying;and another was the current Korean geodetic system based on Bessel ellipsoid. For this purpose, three methods were used to determine 7 parameters as follows: Bursa-Wolf model, Molodensky-Badekas model, and Veis model. The coordinate transformation was carried out using simillity transformation applied the obtained 7 parameters and the precision of transformed coordinate was evaluated. From this results, we found that Bursa-wolf model is more suitable than others for the determination of transformation parameters in Korea.

본 연구는 GPS위성측량의 기준좌표계로 채택된 세계측지계(WGS-84)와 현재 우리나라에서 사용되고 있는 베셀타원체에 근거한 측지계와 좌표변환을 위하여 Bursa-Wolf모델, Molodensky-Badekas모델과 Veis모델의 3가지 7-매개변수 좌표변환 방법을 수행하고 좌표변환 정밀도를 비교하였다. 본 연구의 결과, 우리나라에서는 Bursa-Wolf 모델이 7-매개변수 결정모델로 적합하다는 것을 알 수 있었다.

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