Comptes Rendus
no. 1
Monostatic Radar Cross Section of an object above a sea surface from a rigorous method
[Surface Equivalente Radar monostatique d'un objet au-dessus de la mer par une méthode rigoureuse]
Gildas Kubické1  ; Christophe Bourlier1  ; Joseph Saillard1
1 IREENA, Fédération CNRS Atlanstic, Université Nantes Angers Le Mans, Polytech'Nantes, La Chantrerie, BP 50609, 44306 Nantes, France
Comptes Rendus. Physique, Volume 11 (2010) no. 1, pp. 68-76.

Le calcul rigoureux de la SER (Surface Equivalente Radar) monostatique d'un objet situé au-dessus d'une surface de mer monodimensionnelle (cas 2D) nécessite de résoudre un problème possédant un grand nombre d'inconnues. Pour ce calcul, une méthode numérique rapide récemment développée, nommée E-PILE (Extended Propagation-Inside-Layer Expansion), est combinée à la FB-SA (Forward–Backward with Spectral Acceleration). Deux objets sont considérés dans ce papier : l'obstacle cruciforme (la croix) et le cylindre. L'étude des résultats issus de la méthode E-PILE + FB-SA permet de bien comprendre les mécanismes physiques du couplage de l'obstacle et de la surface de mer. L'application visée est la détection d'obstacles pour la télédétection en milieu maritime.

The rigorous computation of the monostatic RCS (Radar Cross Section) of an object above a one-dimensional sea surface (2D case) needs to solve a problem involving a high number of unknowns. Thus, a recently developed fast numerical method, called E-PILE (Extended Propagation-Inside-Layer Expansion), was combined with FB-SA (Forward–Backward with Spectral Acceleration). Two objects are considered in this article: the cross and the cylinder. Results obtained from E-PILE + FB-SA allow us to understand the physical mechanisms involved in the coupling between the object and the sea surface.

Publié le :
DOI : 10.1016/j.crhy.2009.12.001
Keywords: Object detection, Remote sensing, Monostatic RCS, Fast numerical method
Mot clés : Détection d'objet, Domaine maritime, SER monostatique, Méthode numérique rapide
Gildas Kubické 1 ; Christophe Bourlier 1 ; Joseph Saillard 1

1 IREENA, Fédération CNRS Atlanstic, Université Nantes Angers Le Mans, Polytech'Nantes, La Chantrerie, BP 50609, 44306 Nantes, France 
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Gildas Kubické; Christophe Bourlier; Joseph Saillard. Monostatic Radar Cross Section of an object above a sea surface from a rigorous method. Comptes Rendus. Physique, Volume 11 (2010) no. 1, pp. 68-76. doi : 10.1016/j.crhy.2009.12.001. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2009.12.001/

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