Through verification of living examples, the accuracy of GPS height fitting is mainly dependent on the accuracy of GPS geodetic height, accuracy of coincident point normal height, coincident p…
一般在重合点数量充足且分布均匀的情况下，GPS高程拟合的精度可达到四等水准网的精度要求。
The paper introduces the application theory of GPS height and both the general method and the curved surface fitting method to measure geodetic height.
介绍了GPS高程的应用理论，大地水准高的计算方法以及利用曲面拟合法计算大地水准面高，并对结果进行了分析，绘制出高程异常等值线图。
GPS, normal height, geodetic height, non-grid data, terrain effect.
正常高，大地高，非格网数据，地形影响。
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