[Modélisation la diffusion électromagnétique en incidence rasante par des surfaces océaniques. Application aux radars hautes fréquences à ondes de surface]
L'objectif de cette étude est de modéliser la diffusion électromagnétique par des surfaces océaniques, lorsqu'elles sont éclairées par des radars hautes fréquences à ondes de surface. L'approche communément retenue est d'étudier la diffusion en incidence rasante. Des études récentes s'appuient sur des méthodes dites exactes. Comme de telles méthodes impliquent des temps de calculs et des volumes de données prohibitifs, il devient important d'implémenter des techniques permettant de réduire ces coûts. L'enjeu est également de comprendre les interactions entre l'onde électromagnétique et la surface océanique. Nous présentons dans cet article les principales caractéristiques de notre simulateur et une comparaison avec des mesures.
The object of the study is to model the electromagnetic scattering by time-evolving sea surfaces illuminated by high frequency surface wave radars. A common way to simulate this case is to consider the scattering at grazing incidence. Recent studies have focused on so-called exact methods. As such methods are very time and memory consuming, it becomes important to implement techniques to reduce the calculation costs. Another important issue is to better understand the interactions between the electromagnetic waves and moving sea surfaces. We present in this article our simulator main characteristics and a comparison between simulated data and measurements.
Mot clés : ROS, Surface de mer, Onde de surface, Modélisation électromagnétique, Diffusion électromagnétique
@article{CRPHYS_2010__11_1_87_0,
author = {Ya\"el Demarty and Laetitia Thirion-Lefevre and Vincent Gobin},
title = {Modelling of the electromagnetic scattering by sea surfaces at grazing incidence. {Application} to {HF} surface wave radars},
journal = {Comptes Rendus. Physique},
pages = {87--95},
publisher = {Elsevier},
volume = {11},
number = {1},
year = {2010},
doi = {10.1016/j.crhy.2010.01.003},
language = {en},
}
TY - JOUR AU - Yaël Demarty AU - Laetitia Thirion-Lefevre AU - Vincent Gobin TI - Modelling of the electromagnetic scattering by sea surfaces at grazing incidence. Application to HF surface wave radars JO - Comptes Rendus. Physique PY - 2010 SP - 87 EP - 95 VL - 11 IS - 1 PB - Elsevier DO - 10.1016/j.crhy.2010.01.003 LA - en ID - CRPHYS_2010__11_1_87_0 ER -
%0 Journal Article %A Yaël Demarty %A Laetitia Thirion-Lefevre %A Vincent Gobin %T Modelling of the electromagnetic scattering by sea surfaces at grazing incidence. Application to HF surface wave radars %J Comptes Rendus. Physique %D 2010 %P 87-95 %V 11 %N 1 %I Elsevier %R 10.1016/j.crhy.2010.01.003 %G en %F CRPHYS_2010__11_1_87_0
Yaël Demarty; Laetitia Thirion-Lefevre; Vincent Gobin. Modelling of the electromagnetic scattering by sea surfaces at grazing incidence. Application to HF surface wave radars. Comptes Rendus. Physique, Volume 11 (2010) no. 1, pp. 87-95. doi : 10.1016/j.crhy.2010.01.003. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2010.01.003/
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