Beam Tracing with Refraction
This paper presents the beam tracing with refraction method, developed to examine the possibil- ity of creating the beam tracing simulation of sound propagation in environments with piecewise non- homogenous media. The beam tracing with refraction method (BTR) is developed as an adaptive beam tra...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2013-10-01
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| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/95 |
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| _version_ | 1849424092306866176 |
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| author | Marjan SIKORA Ivo MATELJAN Nikola BOGUNOVIĆ |
| author_facet | Marjan SIKORA Ivo MATELJAN Nikola BOGUNOVIĆ |
| author_sort | Marjan SIKORA |
| collection | DOAJ |
| description | This paper presents the beam tracing with refraction method, developed to examine the possibil-
ity of creating the beam tracing simulation of sound propagation in environments with piecewise non-
homogenous media. The beam tracing with refraction method (BTR) is developed as an adaptive beam
tracing method that simulates not only the reflection but also the refraction of sound. The scattering and
the diffraction of sound are not simulated. The BTR employs 2D and 3D topology in order to efficiently
simulate scenes containing non-convex media. After the beam tracing is done all beams are stored in a
beam tree and kept in the computer memory. The level of sound intensity at the beginning of each beam
is also memorized. This beam data structure enables fast recalculation of results for stationary source
and geometry. The BTR was compared with two commercial ray tracing simulations, to check the speed
of BTR algorithms. This comparison demonstrated that the BTR has a performance similar to state-of-
the-art room-acoustics simulations. To check the ability to simulate refraction, the BTR was compared
with a commercial Finite Elements Method (FEM) simulation. In this comparison the BTR simulated
the focusing of the ultrasound with an acoustic lens, with good accuracy and excellent performance. |
| format | Article |
| id | doaj-art-2ff17cb2d81d4e2d9b3a0dffae86be87 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2013-10-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-2ff17cb2d81d4e2d9b3a0dffae86be872025-08-20T03:30:20ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2013-10-01373Beam Tracing with RefractionMarjan SIKORA0Ivo MATELJAN1Nikola BOGUNOVIĆ2Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of SplitFaculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of SplitFaculty of Electrical Engineering and Computing, University of ZagrebThis paper presents the beam tracing with refraction method, developed to examine the possibil- ity of creating the beam tracing simulation of sound propagation in environments with piecewise non- homogenous media. The beam tracing with refraction method (BTR) is developed as an adaptive beam tracing method that simulates not only the reflection but also the refraction of sound. The scattering and the diffraction of sound are not simulated. The BTR employs 2D and 3D topology in order to efficiently simulate scenes containing non-convex media. After the beam tracing is done all beams are stored in a beam tree and kept in the computer memory. The level of sound intensity at the beginning of each beam is also memorized. This beam data structure enables fast recalculation of results for stationary source and geometry. The BTR was compared with two commercial ray tracing simulations, to check the speed of BTR algorithms. This comparison demonstrated that the BTR has a performance similar to state-of- the-art room-acoustics simulations. To check the ability to simulate refraction, the BTR was compared with a commercial Finite Elements Method (FEM) simulation. In this comparison the BTR simulated the focusing of the ultrasound with an acoustic lens, with good accuracy and excellent performance.https://acoustics.ippt.pan.pl/index.php/aa/article/view/95simulationbeam tracing methodrefraction |
| spellingShingle | Marjan SIKORA Ivo MATELJAN Nikola BOGUNOVIĆ Beam Tracing with Refraction Archives of Acoustics simulation beam tracing method refraction |
| title | Beam Tracing with Refraction |
| title_full | Beam Tracing with Refraction |
| title_fullStr | Beam Tracing with Refraction |
| title_full_unstemmed | Beam Tracing with Refraction |
| title_short | Beam Tracing with Refraction |
| title_sort | beam tracing with refraction |
| topic | simulation beam tracing method refraction |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/95 |
| work_keys_str_mv | AT marjansikora beamtracingwithrefraction AT ivomateljan beamtracingwithrefraction AT nikolabogunovic beamtracingwithrefraction |