The aim of this paper is (1) to address an extension of the On-Surface Radiation Condition (OSRC) method to multiple scattering by a cluster of convex obstacles and (2) to analyze the …
H Barucq, F Faucher, H Pham - Journal of Computational Physics, 2018 - Elsevier
We investigate numerically the inverse problem of locating small circular obstacles in a homogeneous medium from multi-frequency back-scattered data limited to four angles of …
B Thierry - Journal of Mathematical Analysis and Applications, 2014 - Elsevier
This article deals with boundary integral equation preconditioning for the multiple scattering problem. The focus is put on the single scattering preconditioner, corresponding to the …
H Barucq, J Chabassier, H Pham, S Tordeux - Wave Motion, 2018 - Elsevier
We investigate efficient methods to simulate the multiple scattering of obstacles in homogeneous media. With a large number of small obstacles on a large domain, optimized …
The aim of this paper is to introduce an orignal coupling procedure between surface integral equation formulations and on-surface radiation condition (OSRC) methods for solving two …
C Burkard, A Minut, K Ramdani - Inverse Problems and Imaging, 2013 - hal.science
Based on the time-harmonic far field model for small dielectric inclusions in 3D, we study the so-called DORT method (DORT is the French acronym for''Diagonalization of the Time …
X Antoine, B Thierry - Computer Methods in Applied Mechanics and …, 2013 - Elsevier
The aim of this paper is to develop an analysis of the distribution of the eigenvalues of the acoustic single-layer potential for various low frequency two-dimensional multiple scattering …
L'échographie est une méthode d'imagerie médicale qui repose sur la propagation d'ondes acoustiques de hautes fréquences. L'origine de l'échographie repose sur deux découvertes …
In this paper, we develop reduced models to approximate the solution of the electromagnetic scattering problem in an unbounded domain which contains a small perfectly conducting …