[Propagation des ondes radioélectriques en tunnels voûtés : Mesures et simulations par méthodes asymptotiques]
De nombreux systèmes de communication sans fil sont développés pour les communications entre les trains et l'infrastructure et entre les trains dans les domaines métro et ferroviaire. Ils répondent à des besoins opérationnels de sécurité et de confort. Dans le but de déployer ces systèmes dans les environnements particuliers que sont les tunnels, qui peuvent être rectilignes ou courbes, et de section rectangulaire ou voûtée, des modèles de propagation spécifiques doivent être développés. Une modélisation de la propagation en tunnels rectilignes de section voûtée a été réalisée à l'aide de différents modèles asymptotiques à base de tracé et de lancer de rayons, alliés à une facettisation de la section voûtée. Une méthode d'interpolation des normales a été implémentée afin de minimiser l'erreur introduite par l'utilisation de la facettisation. Les résultats obtenus ont été validés par confrontation à la littérature et à des résultats de mesures effectuées dans un tunnel de section voûtée.
Several wireless communication systems are developed for communication needs between train and ground and between trains in the railway or mass transit domains. They are developed for operational needs for security and comfort. In order to deploy these systems in specific environments, such as tunnels, straight or curved, rectangular or arch-shaped section, specific propagation models have to be developed. A modelisation of the radio wave propagation in straight arch-shaped tunnels is realized by using asymptotic methods, such as Ray Tracing and Ray Launching, combined with the tessellation of the arched section. A method of interpolation of the facets' normals was implemented in order to minimize the error made when using the tessellation. Results obtained are validated by comparison to the literature and to measurement results.
Mot clés : Propagation des ondes radio, Tunnels, Méthodes asymptotiques, Mesures
@article{CRPHYS_2010__11_1_44_0,
author = {E. Masson and P. Combeau and Y. Cocheril and M. Berbineau and L. Aveneau and R. Vauzelle},
title = {Radio wave propagation in arch-shaped tunnels: {Measurements} and simulations by asymptotic methods},
journal = {Comptes Rendus. Physique},
pages = {44--53},
publisher = {Elsevier},
volume = {11},
number = {1},
year = {2010},
doi = {10.1016/j.crhy.2009.12.003},
language = {en},
}
TY - JOUR AU - E. Masson AU - P. Combeau AU - Y. Cocheril AU - M. Berbineau AU - L. Aveneau AU - R. Vauzelle TI - Radio wave propagation in arch-shaped tunnels: Measurements and simulations by asymptotic methods JO - Comptes Rendus. Physique PY - 2010 SP - 44 EP - 53 VL - 11 IS - 1 PB - Elsevier DO - 10.1016/j.crhy.2009.12.003 LA - en ID - CRPHYS_2010__11_1_44_0 ER -
%0 Journal Article %A E. Masson %A P. Combeau %A Y. Cocheril %A M. Berbineau %A L. Aveneau %A R. Vauzelle %T Radio wave propagation in arch-shaped tunnels: Measurements and simulations by asymptotic methods %J Comptes Rendus. Physique %D 2010 %P 44-53 %V 11 %N 1 %I Elsevier %R 10.1016/j.crhy.2009.12.003 %G en %F CRPHYS_2010__11_1_44_0
E. Masson; P. Combeau; Y. Cocheril; M. Berbineau; L. Aveneau; R. Vauzelle. Radio wave propagation in arch-shaped tunnels: Measurements and simulations by asymptotic methods. Comptes Rendus. Physique, Volume 11 (2010) no. 1, pp. 44-53. doi : 10.1016/j.crhy.2009.12.003. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2009.12.003/
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