FULL WAVE MODELING OF ELECTROMAGNETIC SCATTERING BY AN OBJECT BURIED BETWEEN TWO ROUGH SURFACES: APPLICATION TO GPR
| Autor: | Nicolas Pinel, Christophe Bourlier, Marc Songolo |
|---|---|
| Přispěvatelé: | Institut d'Électronique et des Technologies du numéRique (IETR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Institut Catholique d'Arts et Métiers (ICAM) |
| Rok vydání: | 2022 |
| Předmět: |
Surface (mathematics)
Field (physics) Scattering Numerical analysis Acoustics Method of moments (statistics) Condensed Matter Physics [SPI.TRON]Engineering Sciences [physics]/Electronics Electronic Optical and Magnetic Materials Matrix (mathematics) symbols.namesake [SPI]Engineering Sciences [physics] Maxwell's equations Ground-penetrating radar symbols Electrical and Electronic Engineering Geology |
| Zdroj: | Progress In Electromagnetics Research B Progress In Electromagnetics Research B, 2022, 96, pp.133-152. ⟨10.2528/PIERB22020807⟩ |
| ISSN: | 1937-6472 |
| Popis: | International audience; In this paper, we present an efficient numerical method to calculate the frequency and time responses of the field scattered by an object buried between two random rough surfaces for a 2-D problem. This method is called Generalized PILE (GPILE) method because it extends the PILE method which considers only two surfaces or an object buried under a surface. The GPILE method solves the Maxwell equations rigourously by using a simple matrix formulation. The obtained results have a straightforward physical interpretation and allow us to investigate the influence of the object buried between the two rough surfaces. We distinguish the primary echo of the upper surface, the multiple echoes coming from the lower surface, and those arising from the object. The GPILE method is applied to simulate the Ground Penetrating Radar (GPR) signal at nadir. The resulting time response helps the user to detect the presence of the object buried between the two random rough surfaces. |
| Databáze: | OpenAIRE |
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