GPS/水准的高程异常处理

The height anomaly processing of GPS/leveling

文章描述了针对山区地形变化较大时,在进行GPS高程转换中应考虑到组成高程异常三要素:短波分量ξT、长波分量ξgm和中波分量ξRES的影响,结合“移去-恢复”算法,可以显著提高局部地区的GPS大地高转换为正常高的精度,并讨论了“移去-恢复”算法核心问题的ξT实现地形改正的计算。

When there are big topographic changes in mountain areas, we should take the three elements （ξT, the short wavelength component and ξgm,the long wavelength and ξRES ,the medium wavelength one.） that make up of the height anomaly in the process of GPS height transformation. The article described that the accuracy of height transformation of the GPS height can be improved greatly in local mountain areas by employing the ＂remove-restore＂ technique, discussed the kernel question （ξT） about ＂remove-restore＂ arithmetic, accomplished topographic-correction formulas.