基于高精度曲面模型的高程异常曲面模拟

HEIGHT ANOMALY SURFACE SIMULATION BASED ON HIGH ACCURACY SURFACE MODEL

从误差理论角度确定了高精度曲面模型对高程异常曲面模拟的格网分辨率,从而有效地解决了HASM模拟计算以及精度分析的空间位置误差问题。使用HASM模拟某测区高程异常曲面的结果表明,HASM的模拟精度有大幅度提高。

The grid resolution of the height anomaly surface simulation based on High Accuracy Surface Modelling （HASM） has been computed in the error theory, thus we can avoid the complicated Taylor expansion and solve the location differences between sampling points and the central points of grid of the simulation surfaces. A certain area was employed to compare the simulation errors between HASM and the classical methods of height anomaly surface fitting. The results show that HASM is much more accurate than the classical methods.