一、前言由观测得到的随机数据(x_i,y_i,z_i),i=1,2,……,L。(其中认为z是(x,y)的函数)。在物化探资料处理、解释及其他应用中常先做曲面扦值、即二元扦值,得到网格节点上的函数值:zjk=f(xjk,yjk)。二元扦值方法很多,例二元多项式扦值、反距离平方加权扦值、样条函数方法等等。每个扦值点的计算一般都不是利用全部观测点的值,而只用扦值点周围某个范围内的点值。利用这一特点,根据计算点位置,先将大量观测点进行小块组 I. Introduction Random data (x_i, y_i, z_i) obtained by observation, i = 1,2, ..., L. (Where z is considered as a function of (x, y)). In the geophysical and geochemical data processing, interpretation and other applications often make surface stick value, that is, binary skew value, get the function value on the grid node: zjk = f (xjk, yjk). There are many methods of binary skew value, such as binary polynomial skew value, inverse distance square weighted skew value, spline function method and so on. The calculation of each stick point is generally not to use the value of all the observation points, but only points within a certain range around the stick point. Use this feature, according to the calculation point position, a large number of observation points first small group