提出层次多结点样条曲线逼近算法,使得逼近的过程能够根据设定阈值自动的选择最优逼近段数。同时,引入最优逼近曲线判定方法,实验表明该方法对于y射线能谱等离散数据的平滑具有良好效果。
Based on many-knot splines, a new curves approximation algorithm is proposed in this paper. The algorithm makes use of a hierarchy of control lattices to generate a sequence of functions whose sum approaches the desired approximation function. This algorithm can automatically select the proper control points according to the setting threshold. The satisfactory result is obtained for the fitting of experimental spectroscopic data using the optimization methods of cubic many-knot splines.