组合计算网格在近场测量物体非均匀性恢复问题中的应用

IF 0.8 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

Journal of Experimental and Theoretical Physics Pub Date : 2025-06-11 DOI:10.1134/S1063776125600370

B. A. Zaytsev, M. Yu. Medvedik

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引用次数: 0

摘要

本研究的目的是开发一种有效的非侵入性方法来确定物体的特性。为此，用组合或广义计算网格来解决逆衍射问题。本文讨论了正问题和逆问题。直接问题的解由相应体积积分方程的解得出。反问题采用两步法求解。详细介绍了数值方法。得到了数值结果，并对有噪声和无噪声输入数据问题的解决方法进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Application of a Combined Computational Grid in the Problem of Body Inhomogeneity Restoration by Near-Field Measurements

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Application of a Combined Computational Grid in the Problem of Body Inhomogeneity Restoration by Near-Field Measurements

The purpose of this study is to develop an effective noninvasive method for determining the properties of an object. To this end, the inverse diffraction problem is solved using combined or generalized computational grids. In this paper, both the direct and inverse problems are described. The result of solving the direct problem follows from the solution of the corresponding volume integral equation. The inverse problem is solved using a two-step method. A numerical method is described in detail. Numerical results have been obtained, and solutions to the problems with noisy and noise-free input data have been compared.

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来源期刊

Journal of Experimental and Theoretical Physics 物理-物理：综合

CiteScore

1.90

自引率

9.10%

发文量

130

审稿时长

3-6 weeks

期刊介绍： Journal of Experimental and Theoretical Physics is one of the most influential physics research journals. Originally based on Russia, this international journal now welcomes manuscripts from all countries in the English or Russian language. It publishes original papers on fundamental theoretical and experimental research in all fields of physics: from solids and liquids to elementary particles and astrophysics.