Layer stripping approach to reconstruct shape defects in waveguides using locally resonant frequencies - Archive ouverte HAL Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2022

Layer stripping approach to reconstruct shape defects in waveguides using locally resonant frequencies

Résumé

This article present a new method to reconstruct slowly varying width defects in 2D waveguides using one-side section measurements at locally resonant frequencies. At these frequencies, locally resonant modes propagate in the waveguide up to a "cut-off" position. In this particular point, the local width of the waveguide can be recovered. Given multi-frequency measurements taken on a section of the waveguide, we perform an efficient layer stripping approach to recover shape variations slice by slice. It provides an L infinite-stable method to reconstruct the width of a slowly monotonous varying waveguide. We validate this method on numerical data and discuss its limits.
Fichier principal
Vignette du fichier
layer_stripping_resonance_v1.pdf (631.56 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03897761 , version 1 (14-12-2022)

Identifiants

  • HAL Id : hal-03897761 , version 1

Citer

Angèle Niclas, Laurent Seppecher. Layer stripping approach to reconstruct shape defects in waveguides using locally resonant frequencies. 2022. ⟨hal-03897761⟩
35 Consultations
13 Téléchargements

Partager

Gmail Facebook X LinkedIn More