加权移动趋势面拟合

Weighted Technology of Moving Trend Surface Fitting

以趋势面拟合技术为基础,提出了一种以钻孔数据为数据源,利用加权的移动趋势面拟合技术生成地层三维数据的方法,该方法克服了原有算法拟合度较低和显著性不明显的缺点。在计算过程中利用R和F检验决定移动拟合的半径和参考点权重的大小,通过调整拟合半径和参考点权重使地层较小的变形得以表现,同时保证了地层的平滑连接和足够的精度。

Based on the technology of trend surface fitting, an approach of using the drilling data as data sources and generating three-dimensional grid data of stratum by a weighted technology of moving trend surface fitting is presented. This method gets over the weakness of original algorithms of having lower degree of fitting and being unable to highlight detailed features, while in the new method R and F test are used to decide the moving fitting radius and the weight of reference points respectively. Through adjusting the fitting radius and the weight of reference points, the new approach can represent the minor deformation of stratum, at the same time present smooth blending of stratum with sufficient precision.