平面网格位场数据的空间域非线性曲率滤波方法

The nonlinear curvature filtering technique of plane potential grid data in space domain

剖面测线位场数据的空间域非线性曲率滤波方法能够较好地分离提取剖面测线位场的趋势和剩余异常 ,本文首次将该方法推广应用到平面网格位场数据情况 ,为平面网格位场的趋势和剩余异常的分离提取提供了一种新的实用方法 .在新疆某地区的实例计算表明 ,本文提出的平面网格位场数据的空间域非线性曲率滤波方法的应用效果好、计算速度快 .

The nonlinear curvature filtering technique was often used to separate and obtain the tendency or residual anomaly along profile survey lline; this technique, however, could be also used in filtering calculation of plane potential grid data. The nonlinear curvature filtering technique of plane potential grid data first suggested in this paper offered us a new kind of practicable method in separating tendency or residual anomaly. A calculation example for a certain area of Xinjiang proved this technique to be of good effect and fast calculation speed.