中文摘要：

讨论了采用不同定权方式的移动趋势曲面拟合法在山区GPS高程数据转换中的应用，比较分析了拟合精度，改进了山区GPS高程转换的精度。

英文摘要：

Based on the GPS surveying and leveling materials, two weight functions of moving surface model which are applied to the GPS height data conversion in the mountain areas are mainly studied. And the fitting precision is analyzed and compared. From the results, it can be found that applying the radial weight functions to moving surface model have an effect on the GPS height conversion in the mountain areas.