3 papers
math.NA2026
Convergent and efficient iteratively regularized contrast source inversion-type methods for inverse medium scattering problems
Qiao Hu, Bo Zhang, Haiwen Zhang
The contrast source inversion (CSI) method and the subspace-based optimization method (SOM) are first proposed in 1997 and 2009, respectively, and subsequently modified. The two me…
math.NA2025
A deep learning approach to inverse medium scattering: Learning regularizers from a direct imaging method
Kai Li, Bo Zhang, Haiwen Zhang
This paper aims to solve numerically the two-dimensional inverse medium scattering problem with far-field data. This is a challenging task due to the severe ill-posedness and stron…
math.NA2025
A Nyström Method for Scattering by a Two-layered Medium with a Rough Boundary
Haiyang Liu, Long Li, Jiansheng Yang +2
This paper is concerned with problems of scattering of time-harmonic acoustic waves by a two-layered medium with a non-locally perturbed boundary (called a rough boundary in this p…