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Le Touz , Nicolas; Dumoulin , Jean; Gennarelli , Gianluca; Soldovieri , Francesco (2017)
Publisher: European Geosciences Union
Languages: English
Types: Article
Subjects: [ PHYS.MECA.STRU ] Physics [physics]/Mechanics [physics]/Mechanics of the structures [physics.class-ph], METHODE ELECTROMAGNETIQUE, MUR, [ SPI ] Engineering Sciences [physics]
International audience; In this study, we present an inversion approach to detect and localize inclusions in thick walls under natural so-licitations. The approach is based on a preliminary analysis of surface temperature field evolution with time (for instance acquired by infrared thermography); subsequently, this analysis is improved by taking advantage of a priori information provided by ground-penetrating radar reconstruction of the structure under investigation. In this way, it is possible to improve the accuracy of the images achievable with the stand-alone thermal reconstruction method in the case of quasi-periodic natural excitation.