Surface identification through rational approximation of the back-scattering of an electromagnetic planar wave - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2022

Surface identification through rational approximation of the back-scattering of an electromagnetic planar wave

Abstract

By measuring the scattered electromagnetic field produced by a plane wave on a smooth object at various frequencies, and then performing rational or meromorphic approximation of the transfer function, we consider the issue of identifying the shape of the object from the recovery of some characteristic singularities (which are poles because the object is smooth, but typically infinite in number). This technique can also be used to identify certain physical characteristics of the object for nondestructive testing. In this paper, we study the high-frequency behaviour of the scattered wave and more precisely the contribution of the 'optic' and 'creeping waves' parts of the field outside of the measured frequency band and thus in the reconstruction of the poles of the transfer function. These two parts are identified by their high-frequency behaviour.
Fichier principal
Vignette du fichier
Waves2022_Asensio.pdf (223.41 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03934368 , version 1 (11-01-2023)

Identifiers

  • HAL Id : hal-03934368 , version 1

Cite

Paul Asensio, Laurent Baratchart, Juliette Leblond, Martine Olivi, Fabien Seyfert, et al.. Surface identification through rational approximation of the back-scattering of an electromagnetic planar wave. Waves 2022 - 15th international conference on mathematical and numerical aspects of wave propagation, Jul 2022, Palaiseau, France. ⟨hal-03934368⟩
24 View
29 Download

Share

Gmail Facebook X LinkedIn More