CAJ | 학술논문

随着GPS技术的发展和超高阶全球重力场模型EGM2008的释放，大地高的精度、EGM模型精度和分辨率越来越高，使得GPS大地高转换为高精度的正常高成可能。本文简要介绍了EGM2008全球重力场模型以及利用EGM2008模型和GPS/水准点进行GPS高程转换的原理和方法。结合昆明北部某区域的实验数据，用上述方法完成GPS高程转换并进行了精度统计分析，可以满足大比例尺地形图测图要求。
수착GPS기술적발전화초고계전구중력장모형EGM2008적석방，대지고적정도、EGM모형정도화분변솔월래월고，사득GPS대지고전환위고정도적정상고성가능。본문간요개소료EGM2008전구중력장모형이급이용EGM2008모형화GPS/수준점진행GPS고정전환적원리화방법。결합곤명북부모구역적실험수거，용상술방법완성GPS고정전환병진행료정도통계분석，가이만족대비례척지형도측도요구。
With the development of GPS technology and the high order of global gravity field model EGM 2008 re-lease,the high accuracy,the accuracy of EGM model and the resolution is higher and higher ,the GPS geodetic height into normal height of high accuracy as possible .This paper briefly introduces the EGM 2008 global gravity field model as well as the principle and method of GPS height transformation using the EGM 2008 model and the GPS/leveling points.Ac-cording to the experimental data of a certain region of northern Kunming ,the GPS height conversion by using the above method and the statistical analysis of accuracy ,and can meet the requirements of large scale topographic mapping .