变差函数中加权系数拟合方法的改善

变差函数拟合效果的优劣是提高求解变差函数精度的关键步骤,结合加权多项式法和线性规划法的优点,提出使用处理滞后距的方法得到权系数的线性规划法进行球状模型的参数估计,对新疆贝克滩水系沉积物化探数据进行空间分析,结果表明:预测值与样品实测值误差较小,提高预测值的精度.

Improvement of the weighted coefficient fitting method in variogram fields

It is the key step to improve variogram precision of simulation effect. On combining advantages of power quantic and linear programming, we propose to take the Linear programming method that using reciprocal lag distance as coefficient to forecast the parameters of the spherical model. By analyzing geochemical data of sediment in the Beiketan River of Xinjiang, it is a small error between the predicted value and the measured value of the samples. Consequently, they are matched well in distributions of the defined spatial data and the existing deposit and enchance the precision of the predicted value.