详细信息
求一阶数值微分的L-广义解方法cTSVD
CTSVD METHOD OF L-GENERALIZED SOLUTION FOR SOLVING NUMERICAL DIFFERENTIATION
文献类型:期刊文献
中文题名:求一阶数值微分的L-广义解方法cTSVD
英文题名:CTSVD METHOD OF L-GENERALIZED SOLUTION FOR SOLVING NUMERICAL DIFFERENTIATION
作者:赵振宇[1,2];贺国强[1];窦志红[3]
机构:[1]上海大学理学院数学系,上海200444;[2]广东海洋大学理学院数学与信息科学系,湛江524008;[3]河北工业大学廊坊分校,廊坊065000
年份:2010
卷号:32
期号:1
起止页码:82
中文期刊名:高等学校计算数学学报
外文期刊名:Numerical Mathematics A Journal of Chinese Universities
收录:CSTPCD、、CSCD2011_2012、北大核心2008、北大核心、CSCD
语种:中文
中文关键词:numerical differentiation;ill-posed problem;cTSVD method;L—Generalized solution.
外文关键词:numerical differentiation, ill-posed problem, cTSVD method, L- Generalized solution.
中文摘要:1引言数值微分也就是给定一个函数在一个区间或某些离散点上的扰动数据来求函数的导数,它产生于很多实际问题当中,比如,图象处理中的边界识别问题;Abel积分方程的求解问题;化学中波谱的波峰识别问题.以及一些数学物理反问题当中.
外文摘要:In this paper we consider the numerical differentiation of functions with noisy data. We introduce the cTSVD method of L-Generalized solution to deal with the ill-posed property of the problem. Since the singular system of the operator concerned can be ob- tained easily, and therefore the method can be performed easily and fast. Theoretical and numerical results show that the method is stable and efficient.
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