一阶趋势的OK方法中半方差函数模型选用高斯型的比选用球状和指数型的插值效果相对要好。

Within the method of first-order trend OK, Gaussian semi-variogram model performed better than both the spherical and exponential models.

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本文定义了完全二元二级指数样条，证明了相应插值问题解的存在及唯一性。

In this paper, We discuss the splines of the completely binary second order index. The existence and uniqueness of the relevant solution of the problem of interpolation is proved.

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