Power-based application of frequency-averaged 𝓁1-norm regularisation technique for the synthesis of accelerating indoor tyre pass-by noise

Pass-by noise contribution analysis is an engineering procedure employed to estimate the contributions from various noise sources on a vehicle to the overall sound pressure level. This can be realised by placing a set of microphones close to the various sources to estimate their source strengths and...

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Autores principales:	Papaioannou Athanasios, Elliott Stephen J., Cheer Jordan, Cuenca Jacques, Alkmim Mansour
Formato:	article
Lenguaje:	EN
Publicado:	EDP Sciences 2021
Materias:	inverse method pass-by noise tyre noise regularisation joint sparsity Acoustics in engineering. Acoustical engineering TA365-367 Acoustics. Sound QC221-246
Acceso en línea:	https://doaj.org/article/13349df18c744922bc053f7d7bc5cc29
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id	oai:doaj.org-article:13349df18c744922bc053f7d7bc5cc29
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spelling	oai:doaj.org-article:13349df18c744922bc053f7d7bc5cc292021-12-02T17:10:42ZPower-based application of frequency-averaged 𝓁1-norm regularisation technique for the synthesis of accelerating indoor tyre pass-by noise2681-461710.1051/aacus/2021044https://doaj.org/article/13349df18c744922bc053f7d7bc5cc292021-01-01T00:00:00Zhttps://acta-acustica.edpsciences.org/articles/aacus/full_html/2021/01/aacus210047/aacus210047.htmlhttps://doaj.org/toc/2681-4617Pass-by noise contribution analysis is an engineering procedure employed to estimate the contributions from various noise sources on a vehicle to the overall sound pressure level. This can be realised by placing a set of microphones close to the various sources to estimate their source strengths and then synthesising the response at a far-field linear array in the presence of the remaining sources. The results described in this paper rely on measured near-field pressure data close to the tyres of an electric vehicle under accelerating conditions. The number and position of the estimated virtual source strengths used is a compromise between complexity and accuracy, which has previously been addressed mostly empirically. A power-based, frequency-averaged 𝓁1-norm regularisation technique is investigated to optimise the equivalent source position and strength for one operating tyre and, subsequently, the far-field pass-by noise pressure estimates. It is shown that for the tyre under investigation, optimising the positions of only two equivalent sources over the frequency range of interest gives a good representation of the measured far-field spectra.Papaioannou AthanasiosElliott Stephen J.Cheer JordanCuenca JacquesAlkmim MansourEDP Sciencesarticleinverse methodpass-by noisetyre noiseregularisationjoint sparsityAcoustics in engineering. Acoustical engineeringTA365-367Acoustics. SoundQC221-246ENActa Acustica, Vol 5, p 50 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	inverse method pass-by noise tyre noise regularisation joint sparsity Acoustics in engineering. Acoustical engineering TA365-367 Acoustics. Sound QC221-246
spellingShingle	inverse method pass-by noise tyre noise regularisation joint sparsity Acoustics in engineering. Acoustical engineering TA365-367 Acoustics. Sound QC221-246 Papaioannou Athanasios Elliott Stephen J. Cheer Jordan Cuenca Jacques Alkmim Mansour Power-based application of frequency-averaged 𝓁1-norm regularisation technique for the synthesis of accelerating indoor tyre pass-by noise
description	Pass-by noise contribution analysis is an engineering procedure employed to estimate the contributions from various noise sources on a vehicle to the overall sound pressure level. This can be realised by placing a set of microphones close to the various sources to estimate their source strengths and then synthesising the response at a far-field linear array in the presence of the remaining sources. The results described in this paper rely on measured near-field pressure data close to the tyres of an electric vehicle under accelerating conditions. The number and position of the estimated virtual source strengths used is a compromise between complexity and accuracy, which has previously been addressed mostly empirically. A power-based, frequency-averaged 𝓁1-norm regularisation technique is investigated to optimise the equivalent source position and strength for one operating tyre and, subsequently, the far-field pass-by noise pressure estimates. It is shown that for the tyre under investigation, optimising the positions of only two equivalent sources over the frequency range of interest gives a good representation of the measured far-field spectra.
format	article
author	Papaioannou Athanasios Elliott Stephen J. Cheer Jordan Cuenca Jacques Alkmim Mansour
author_facet	Papaioannou Athanasios Elliott Stephen J. Cheer Jordan Cuenca Jacques Alkmim Mansour
author_sort	Papaioannou Athanasios
title	Power-based application of frequency-averaged 𝓁1-norm regularisation technique for the synthesis of accelerating indoor tyre pass-by noise
title_short	Power-based application of frequency-averaged 𝓁1-norm regularisation technique for the synthesis of accelerating indoor tyre pass-by noise
title_full	Power-based application of frequency-averaged 𝓁1-norm regularisation technique for the synthesis of accelerating indoor tyre pass-by noise
title_fullStr	Power-based application of frequency-averaged 𝓁1-norm regularisation technique for the synthesis of accelerating indoor tyre pass-by noise
title_full_unstemmed	Power-based application of frequency-averaged 𝓁1-norm regularisation technique for the synthesis of accelerating indoor tyre pass-by noise
title_sort	power-based application of frequency-averaged 𝓁1-norm regularisation technique for the synthesis of accelerating indoor tyre pass-by noise
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/13349df18c744922bc053f7d7bc5cc29
work_keys_str_mv	AT papaioannouathanasios powerbasedapplicationoffrequencyaveragedl1normregularisationtechniqueforthesynthesisofacceleratingindoortyrepassbynoise AT elliottstephenj powerbasedapplicationoffrequencyaveragedl1normregularisationtechniqueforthesynthesisofacceleratingindoortyrepassbynoise AT cheerjordan powerbasedapplicationoffrequencyaveragedl1normregularisationtechniqueforthesynthesisofacceleratingindoortyrepassbynoise AT cuencajacques powerbasedapplicationoffrequencyaveragedl1normregularisationtechniqueforthesynthesisofacceleratingindoortyrepassbynoise AT alkmimmansour powerbasedapplicationoffrequencyaveragedl1normregularisationtechniqueforthesynthesisofacceleratingindoortyrepassbynoise
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Power-based application of frequency-averaged 𝓁1-norm regularisation technique for the synthesis of accelerating indoor tyre pass-by noise

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