摘要
用多面函数法拟合地壳垂直运动速率面时,核函数中心点的配置直接影响拟合效果的好坏、计算工作量的大小以及未测点速率预测的结果,有时甚至影响到拟合的成败。本文在工作实践中应用逐步回归理论来筛选核函数中心点,收到了较好的效果。本文的方法对于数字地面模型的建立也有实用意义。
In the fitting of the velocity surface for crustal vertical movements with multisurface funetions, the distribution of Kernel Function Centre Points(K. F. C. P) will effects directly on fitting results, computational expense and the goodness of velocity prediction at the predicted points. Sometimes it even relates to success or failure of the fitting process. In this paper, the successive regression theory is successfully used to select the K. F. C. P.. The method proposed in the paper may have practical significance for the construction of the DTM.
出处
《地壳形变与地震》
CSCD
1991年第2期48-54,共7页
Crustal Deformation and Earthquake
基金
地震科学联合基金89-015
