Opal: An open source ray-tracing propagation simulator for electromagnetic characterization.

Accurate characterization and simulation of electromagnetic propagation can be obtained by ray-tracing methods, which are based on a high frequency approximation to the Maxwell equations and describe the propagating field as a set of propagating rays, reflecting, diffracting and scattering over envi...

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Autores principales:	Esteban Egea-Lopez, Jose Maria Molina-Garcia-Pardo, Martine Lienard, Pierre Degauque
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/333d2f66b842490e8f05b9eab0471d3b
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id	oai:doaj.org-article:333d2f66b842490e8f05b9eab0471d3b
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spelling	oai:doaj.org-article:333d2f66b842490e8f05b9eab0471d3b2021-12-02T20:12:55ZOpal: An open source ray-tracing propagation simulator for electromagnetic characterization.1932-620310.1371/journal.pone.0260060https://doaj.org/article/333d2f66b842490e8f05b9eab0471d3b2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0260060https://doaj.org/toc/1932-6203Accurate characterization and simulation of electromagnetic propagation can be obtained by ray-tracing methods, which are based on a high frequency approximation to the Maxwell equations and describe the propagating field as a set of propagating rays, reflecting, diffracting and scattering over environment elements. However, this approach has been usually too computationally costly to be used in large and dynamic scenarios, but this situation is changing thanks the increasing availability of efficient ray-tracing libraries for graphical processing units. In this paper we present Opal, an electromagnetic propagation simulation tool implemented with ray-tracing on graphical processing units, which is part of the Veneris framework. Opal can be used as a stand-alone ray-tracing simulator, but its main strength lies in its integration with the game engine, which allows to generate customized 3D environments quickly and intuitively. We describe its most relevant features and provide implementation details, highlighting the different simulation types it supports and its extension possibilites. We provide application examples and validate the simulation on demanding scenarios, such as tunnels, where we compare the results with theoretical solutions and further discuss the tradeoffs between the simulation types and its performance.Esteban Egea-LopezJose Maria Molina-Garcia-PardoMartine LienardPierre DegauquePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11, p e0260060 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Esteban Egea-Lopez Jose Maria Molina-Garcia-Pardo Martine Lienard Pierre Degauque Opal: An open source ray-tracing propagation simulator for electromagnetic characterization.
description	Accurate characterization and simulation of electromagnetic propagation can be obtained by ray-tracing methods, which are based on a high frequency approximation to the Maxwell equations and describe the propagating field as a set of propagating rays, reflecting, diffracting and scattering over environment elements. However, this approach has been usually too computationally costly to be used in large and dynamic scenarios, but this situation is changing thanks the increasing availability of efficient ray-tracing libraries for graphical processing units. In this paper we present Opal, an electromagnetic propagation simulation tool implemented with ray-tracing on graphical processing units, which is part of the Veneris framework. Opal can be used as a stand-alone ray-tracing simulator, but its main strength lies in its integration with the game engine, which allows to generate customized 3D environments quickly and intuitively. We describe its most relevant features and provide implementation details, highlighting the different simulation types it supports and its extension possibilites. We provide application examples and validate the simulation on demanding scenarios, such as tunnels, where we compare the results with theoretical solutions and further discuss the tradeoffs between the simulation types and its performance.
format	article
author	Esteban Egea-Lopez Jose Maria Molina-Garcia-Pardo Martine Lienard Pierre Degauque
author_facet	Esteban Egea-Lopez Jose Maria Molina-Garcia-Pardo Martine Lienard Pierre Degauque
author_sort	Esteban Egea-Lopez
title	Opal: An open source ray-tracing propagation simulator for electromagnetic characterization.
title_short	Opal: An open source ray-tracing propagation simulator for electromagnetic characterization.
title_full	Opal: An open source ray-tracing propagation simulator for electromagnetic characterization.
title_fullStr	Opal: An open source ray-tracing propagation simulator for electromagnetic characterization.
title_full_unstemmed	Opal: An open source ray-tracing propagation simulator for electromagnetic characterization.
title_sort	opal: an open source ray-tracing propagation simulator for electromagnetic characterization.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/333d2f66b842490e8f05b9eab0471d3b
work_keys_str_mv	AT estebanegealopez opalanopensourceraytracingpropagationsimulatorforelectromagneticcharacterization AT josemariamolinagarciapardo opalanopensourceraytracingpropagationsimulatorforelectromagneticcharacterization AT martinelienard opalanopensourceraytracingpropagationsimulatorforelectromagneticcharacterization AT pierredegauque opalanopensourceraytracingpropagationsimulatorforelectromagneticcharacterization
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Opal: An open source ray-tracing propagation simulator for electromagnetic characterization.

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