An implicit Landweber method for nonlinear ill-posed operator equations

An implicit Landweber method for nonlinear ill-posed operator equations
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非线性不适定算子方程的隐式Landweber方法

DOI:
10.1016/j.cam.2008.12.016
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发表时间:
2009-08
影响因子:
2.4
通讯作者:
Han, Bo
Han, Bo
中科院分区:
数学2区
文献类型:
--
作者:
Wang, Wei;Han, Bo

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本文主要研究F(x)=y型非线性反问题的解。提出了一种与三阶中点牛顿法在形式上相似的隐式Landweber方法,并研究了隐式Landweber方法的收敛性。利用差异原理作为停止准则,得到了求解不适定问题的正则化方法。最后,我们用数值例子证实了理论结果,包括与经典Landweber迭代法的比较,并提出了修改的Landweber方法。
In this paper, we are interested in the solution of nonlinear inverse problems of the form F(x)=y. We propose an implicit Landweber method, which is similar to the third-order midpoint Newton method in form, and consider the convergence behavior of the implicit Landweber method. Using the discrepancy principle as a stopping criterion, we obtain a regularization method for ill-posed problems. We conclude with numerical examples confirming the theoretical results, including comparisons with the classical Landweber iteration and presented modified Landweber methods.
DOI: 10.1016/s0096-3003(02)00238-2
发表时间: 2003-08
期刊: Appl. Math. Comput.
影响因子: --
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DOI: 10.1016/j.cam.2006.12.021
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影响因子: 2.4
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影响因子: 2.1
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DOI: 10.1088/0266-5611/10/6/014
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期刊: Inverse Problems
影响因子: 2.1
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