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Abstract <p>The main purpose of this study is to develop an effective method for determining the structure of a spherical object. To do this, the inverse diffraction problem is solved using modified combined or generalized computational grids. The paper presents a description of the direct and inverse problems, as well as a method for constructing a computational grid. The result of solving the direct problem is obtained as a solution to the corresponding volume integral equation. To solve the inverse problem, a two-step method is used. A detailed description of the numerical method is presented. The numerical results of solving the problem with noisy data are compared with non-noisy data.</p>

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Determination of the Structure of Objects and Their Visualization in the Problem of Restoring the Permittivity by the Results of Measurements of the Near Electromagnetic Field

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • B. A. Zaytsev,
  • M. Yu. Medvedik

摘要

Abstract

The main purpose of this study is to develop an effective method for determining the structure of a spherical object. To do this, the inverse diffraction problem is solved using modified combined or generalized computational grids. The paper presents a description of the direct and inverse problems, as well as a method for constructing a computational grid. The result of solving the direct problem is obtained as a solution to the corresponding volume integral equation. To solve the inverse problem, a two-step method is used. A detailed description of the numerical method is presented. The numerical results of solving the problem with noisy data are compared with non-noisy data.