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L1 regularisation in the inverse method for the synthesis of indoor tyre pass-by noise

L1 regularisation in the inverse method for the synthesis of indoor tyre pass-by noise
L1 regularisation in the inverse method for the synthesis of indoor tyre pass-by noise
The indoor pass-by noise measurement can nowadays be realised in a laboratory environment with a stationary vehicle on a rolling road and a microphone array, according to ISO - 362-1:2016. Within this indoor testing procedure, there is also the option of evaluating the different contributions from the various noise sources on a car, for example using the inverse method with a number of sensors close to the various sources. This work assumes a 2D-tyre model to approximate the behaviour of a real car tyre at low frequencies. The inverse method is then adopted using this model for the tyre noise contribution synthesis and corresponding source strength and synthesised pressure estimates are calculated. A novel regularisation method is finally investigated to further optimise the far field pass-by noise pressure estimates.
1-11
Papaioannou, Athanasios
28667cce-bb5f-465f-afcc-84df4e0bd290
Elliott, Stephen
721dc55c-8c3e-4895-b9c4-82f62abd3567
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Papaioannou, Athanasios
28667cce-bb5f-465f-afcc-84df4e0bd290
Elliott, Stephen
721dc55c-8c3e-4895-b9c4-82f62abd3567
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc

Papaioannou, Athanasios, Elliott, Stephen and Cheer, Jordan (2019) L1 regularisation in the inverse method for the synthesis of indoor tyre pass-by noise. Inter-noise 2019, Madrid, Spain. 16 Jun - 19 Aug 2019. pp. 1-11 .

Record type: Conference or Workshop Item (Paper)

Abstract

The indoor pass-by noise measurement can nowadays be realised in a laboratory environment with a stationary vehicle on a rolling road and a microphone array, according to ISO - 362-1:2016. Within this indoor testing procedure, there is also the option of evaluating the different contributions from the various noise sources on a car, for example using the inverse method with a number of sensors close to the various sources. This work assumes a 2D-tyre model to approximate the behaviour of a real car tyre at low frequencies. The inverse method is then adopted using this model for the tyre noise contribution synthesis and corresponding source strength and synthesised pressure estimates are calculated. A novel regularisation method is finally investigated to further optimise the far field pass-by noise pressure estimates.

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Internoise2019_L1 regularisation in the inverse method for the synthesis of indoor tyre pass-by noise
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More information

Published date: 16 June 2019
Venue - Dates: Inter-noise 2019, Madrid, Spain, 2019-06-16 - 2019-08-19

Identifiers

Local EPrints ID: 435430
URI: http://eprints.soton.ac.uk/id/eprint/435430
PURE UUID: e70d60e3-5ae6-47d2-b8fd-fe646c0f1727
ORCID for Jordan Cheer: ORCID iD orcid.org/0000-0002-0552-5506

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Date deposited: 06 Nov 2019 17:30
Last modified: 07 Nov 2019 01:33

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