An inverse moving point source problem in electromagnetics
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912492656001024 |
|---|---|
| author | Li, Minghui Hu, Guanghui Zhao, Yue |
| author_facet | Li, Minghui Hu, Guanghui Zhao, Yue |
| contents | This paper is concerned with an inverse moving point source problem in electromagnetics. The aim is to reconstruct the moving orbit from the tangential components of magnetic fields taken at a finite number of observation points. The distance function between each observation point and the moving point source is computed by solving a nonlinear ordinary differential equation with an initial value. This ODE system only involves the measurement data from the tangential trace of the magnetic field at observation points. As a consequence, the dynamical measurement data recorded at four non-coplanar points are sufficient to reconstruct the orbit function. A Lipschitz stability is established for the inverse problem, and numerical experiments are reported to demonstrate the effectiveness of the proposed method. Numerical examples have shown that the reconstructed error depends linearly on the noise level and that the wave speed is a critical factor affecting the relative error. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_14440 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | An inverse moving point source problem in electromagnetics Li, Minghui Hu, Guanghui Zhao, Yue Numerical Analysis 35R30, 78A46 This paper is concerned with an inverse moving point source problem in electromagnetics. The aim is to reconstruct the moving orbit from the tangential components of magnetic fields taken at a finite number of observation points. The distance function between each observation point and the moving point source is computed by solving a nonlinear ordinary differential equation with an initial value. This ODE system only involves the measurement data from the tangential trace of the magnetic field at observation points. As a consequence, the dynamical measurement data recorded at four non-coplanar points are sufficient to reconstruct the orbit function. A Lipschitz stability is established for the inverse problem, and numerical experiments are reported to demonstrate the effectiveness of the proposed method. Numerical examples have shown that the reconstructed error depends linearly on the noise level and that the wave speed is a critical factor affecting the relative error. |
| title | An inverse moving point source problem in electromagnetics |
| topic | Numerical Analysis 35R30, 78A46 |
| url | https://arxiv.org/abs/2507.14440 |