On spherical‐wave scattering by a spherical scatterer and related near‐field inverse problems

C Athanasiadis, PA Martin… - IMA journal of applied …, 2001 - academic.oup.com
A spherical acoustic wave is scattered by a bounded obstacle. A generalization of the
'optical theorem'(which relates the scattering cross‐section to the far‐field pattern in the …

A Conditioned Probabilistic Method for the Solution of the Inverse Acoustic Scattering Problem

A Charalambopoulos, L Gergidis, E Vassilopoulou - Mathematics, 2022 - mdpi.com
In the present work, a novel stochastic method has been developed and investigated in
order to face the time-reduced inverse scattering problem, governed by the Helmholtz …

Analytical improvement on the electromagnetic scattering from deformed spherical conducting objects

B Ates, A Kustepeli, Z Cetin - IEEE Transactions on Antennas …, 2021 - ieeexplore.ieee.org
In this article, electromagnetic scattering from conducting deformed spheres is considered
analytically by employing the perturbation method and utilizing Debye potentials. To be able …

Conductive masses in a half-space Earth in the diffusive regime: Fast hybrid modeling of a low-contrast ellipsoid

G Perrusson, D Lesselier, M Lambert… - IEEE transactions on …, 2000 - ieeexplore.ieee.org
Electromagnetic three-component magnetic probes at diffusion frequencies are now
available for use in slim mineral-exploration boreholes. When a source is operated at or …

Рассеяние звуковых волн упругим эллипсоидом с неоднородным покрытием в полупространстве с идеальной поверхностью

СА Скобельцын - Чебышевский сборник, 2018 - cyberleninka.ru
Представлено решение задачи дифракции плоской звуковой волны на упругом
эллипсоиде Е с внешним слоисто-неоднородным слоем. Эллипсоид находится в …

[PDF][PDF] Mathematical Analysis of Interactions between a Layered Medium and a Distribution of Point Sources

A Kalogeropoulos - Aristotle University of Thessaloniki, Thessaloniki, 2022 - ikee.lib.auth.gr
The problem of exciting a layered medium with an arbitrary distribution of (acoustic) point
sources or (electric/magnetic) dipoles is considered in this dissertation. A mathematical …

Scattering of a point generated field by a multilayered spheroid

A Charalambopoulos, G Dassios, DI Fotiadis… - Acta mechanica, 2001 - Springer
The point source excitation acoustic scattering problem by a multilayer isotropic and
homogeneous spheroidal body is presented. The multilayer spheroidal body is reached by …

A novel stochastic method for the solution of direct and inverse exterior elliptic problems

A Charalambopoulos, L Gergidis - Quarterly of Applied Mathematics, 2018 - ams.org
A new method, in the interface of stochastic differential equations with boundary value
problems, is developed in this work, aiming at representing solutions of exterior boundary …

The localized nonlinear approximation in ellipsoidal geometry: a novel approach to the low-frequency scattering problem

A Charalambopoulos, G Dassios, G Perrusson… - International journal of …, 2002 - Elsevier
The localized nonlinear approximation provides a very effective method within the integral
equation framework of electromagnetic scattering theory. Existing results in this direction are …

Scattering of a point generated field by kidney stones

A Charalambopoulos, DI Fotiadis, CV Massalas - Acta mechanica, 2002 - Springer
In this work, we examine the acoustic scattering problem of spherical waves by a two-layer
spheroid simulating the kidney-stone system. Both the theoretical as well as the numerical …