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arXiv 1602.09092math.AP
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一种针对含实验数据的一维逆介质问题的全局收敛数值方法

A globally convergent numerical method for a 1-d inverse medium problem with experimental data

University of North Carolina at Charlotte(北卡罗来纳大学夏洛特分校);US Army Research Laboratory(美国陆军研究实验室)

Michael V. Klibanov, Loc H. Nguyen, Anders Sullivan, Lam Nguyen

AI总结:

该研究提出一种基于拟可逆方法(QRM)的全局收敛算法,用于从频域背向散射波场重建介质的空间分布介电常数,通过Carleman估计证明收敛性,且在模拟和实验数据上验证了有效性。

摘要:

本文研究了一种从频域背向散射波场重建介质空间分布介电常数的方法。我们的思路是提出一种全局收敛算法,该算法无需预先知晓逆问题解的小邻域的任何信息。算法中采用了拟可逆方法(Quasi-Reversibility Method, QRM),并通过Carleman估计证明了QRM的收敛性。该方法在计算模拟数据和实验数据上均进行了测试。

英文摘要:

In this paper, a reconstruction method for the spatially distributed dielectric constant of a medium from the back scattering wave field in the frequency domain is considered. Our approach is to propose a globally convergent algorithm, which does not require any knowledge of a small neighborhood of the solution of the inverse problem in advance. The Quasi-Reversibility Method (QRM) is used in the algorithm. The convergence of the QRM is proved via a Carleman estimate. The method is tested on both computationally simulated and experimental data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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