Pulse Localization and Fourier Analysis in the Mathematical Model of Acoustic Transient Field

The numerical model of a semi-cylindrical acoustic diffuser in planar transient acoustic field is discussed. The finite element method was used for the solution of the model. From the computed waveforms the straight and the reflected pulses were automatically extracted using cross-correlation. The h...

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Main Authors: Lukas Koudela, Jindrich Jansa
Format: Article
Language:English
Published: VSB-Technical University of Ostrava 2016-01-01
Series:Advances in Electrical and Electronic Engineering
Subjects:
Online Access:http://advances.utc.sk/index.php/AEEE/article/view/1433
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author Lukas Koudela
Jindrich Jansa
author_facet Lukas Koudela
Jindrich Jansa
author_sort Lukas Koudela
collection DOAJ
description The numerical model of a semi-cylindrical acoustic diffuser in planar transient acoustic field is discussed. The finite element method was used for the solution of the model. From the computed waveforms the straight and the reflected pulses were automatically extracted using cross-correlation. The harmonic decomposition was performed on the obtained pulses and the results were plotted in the polar pattern.
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spelling doaj.art-673dc9ad14e9438db4a3b2c8e65137112023-05-14T20:50:10ZengVSB-Technical University of OstravaAdvances in Electrical and Electronic Engineering1336-13761804-31192016-01-0114322322610.15598/aeee.v14i3.1433815Pulse Localization and Fourier Analysis in the Mathematical Model of Acoustic Transient FieldLukas Koudela0Jindrich Jansa1University of West BohemiaUniversity of West BohemiaThe numerical model of a semi-cylindrical acoustic diffuser in planar transient acoustic field is discussed. The finite element method was used for the solution of the model. From the computed waveforms the straight and the reflected pulses were automatically extracted using cross-correlation. The harmonic decomposition was performed on the obtained pulses and the results were plotted in the polar pattern.http://advances.utc.sk/index.php/AEEE/article/view/1433acoustic diffusercross-correlationnumerical modellingroom acoustics.
spellingShingle Lukas Koudela
Jindrich Jansa
Pulse Localization and Fourier Analysis in the Mathematical Model of Acoustic Transient Field
Advances in Electrical and Electronic Engineering
acoustic diffuser
cross-correlation
numerical modelling
room acoustics.
title Pulse Localization and Fourier Analysis in the Mathematical Model of Acoustic Transient Field
title_full Pulse Localization and Fourier Analysis in the Mathematical Model of Acoustic Transient Field
title_fullStr Pulse Localization and Fourier Analysis in the Mathematical Model of Acoustic Transient Field
title_full_unstemmed Pulse Localization and Fourier Analysis in the Mathematical Model of Acoustic Transient Field
title_short Pulse Localization and Fourier Analysis in the Mathematical Model of Acoustic Transient Field
title_sort pulse localization and fourier analysis in the mathematical model of acoustic transient field
topic acoustic diffuser
cross-correlation
numerical modelling
room acoustics.
url http://advances.utc.sk/index.php/AEEE/article/view/1433
work_keys_str_mv AT lukaskoudela pulselocalizationandfourieranalysisinthemathematicalmodelofacoustictransientfield
AT jindrichjansa pulselocalizationandfourieranalysisinthemathematicalmodelofacoustictransientfield