Signal-to-noise ratio analysis for time-reversal based imaging techniques in bounded domains

I Petromichelakis, C Tsogka, CG Panagiotopoulos - Wave Motion, 2018 - Elsevier
We consider the problem of localizing small material defects in rectangular bounded
domains. The scalar acoustic equation is used to model wave propagation in this context …

[HTML][HTML] Computational vibro-acoustic time reversal for source and novelty localization

CG Panagiotopoulos, S Kouzoupis, C Tsogka - Signals, 2022 - mdpi.com
Time reversal has been demonstrated to be effective for source and novelty detection and
localization. We extend here previous work in the case of a coupled structural-acoustic …

A Numerical Study on Computational Time Reversal for Structural Health Monitoring

CG Panagiotopoulos, GE Stavroulakis - Signals, 2021 - mdpi.com
Structural health monitoring problems are studied numerically with the time reversal method
(TR). The dynamic output of the structure is applied, time reversed, as an external loading …

Finite element method based computational time reversal in elastodynamics

M Michal - 2024 - dspace.cvut.cz
Cílem práce je vyvinout metodologii pro věrohodnou rekonstrukci zdroje v časové oblasti za
použití metody výpočetní časové reverzace. Tato schopnost by pomocí analýzy …

Finite element method based computational time reversal in elastodynamics: Refocusing, reconstruction and its numerical sensitivity

M Mračko, J Kober, R Kolman, Z Převorovský… - … and Computers in …, 2021 - Elsevier
In this paper, we study the accuracy and robustness of the computational time reversal
approach based on the explicit finite element method for application in nondestructive …