A stable numerical inversion of generalized Abel始s integral equation

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• 作者：Sandeep Dixit ; Om P. Singh ; ^{singhom@gmail.com} ; Sunil Kumar
• 关键词：Abel inversion ; Bernstein polynomials ; Almost Bernstein operational matrix of integration ; Noise resistance
• 刊名：Applied Numerical Mathematics
• 出版年：2012
• 期刊代码：8_01689274
• 类别：cp
• 出版时间：May, 2012
• 卷：62
• 期：5
• 页码：567-579
• 文件大小：1077 K

摘要

A direct almost Bernstein operational matrix of integration is used to propose a stable algorithm for numerical inversion of the generalized Abel integral equation. The applicability of the earlier proposed methods was restricted to the numerical inversion of a part of the generalized Abel integral equation. The method is quite accurate and stable as illustrated by applying it to intensity data with and without random noise to invert and compare it with the known analytical inverse. Thus it is a good method for applying to experimental intensities distorted by noise.