Scattered sound field separation based on the equivalent source method

Ran Wang; Xiaolin Wang; Jun Yang; Jingwei Liu; Yuwei Feng

Scattered sound field separation based on the equivalent source method

Ran Wang, Xiaolin Wang, Jun Yang, Jingwei Liu, Yuwei Feng

CAS - Institute of Acoustics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Scattered sound field separation is important for three-dimensional active scattered noise control. However, because the free-field Green's function fails to characterize the spherical scattering transfer function, the equivalent source strength of the solution is incorrect when the equivalent source method (ESM) is applied in near-field acoustic holography. A constrained scattered sound field separation method is proposed that overcomes the application limitations of the ESM. In this paper, a rigid sphere is considered. By constraining the direct sound pressure on the measurement surface and extending the equation to be solved, a more accurate equivalent source strength is obtained.

Original language	English
Title of host publication	Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019
Publisher	Canadian Acoustical Association
ISBN (Electronic)	9781999181000
Publication status	Published - 2019
Externally published	Yes
Event	26th International Congress on Sound and Vibration, ICSV 2019 - Montreal, Canada Duration: Jul 7 2019 → Jul 11 2019

Publication series

Name	Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019

Conference

Conference	26th International Congress on Sound and Vibration, ICSV 2019
Country/Territory	Canada
City	Montreal
Period	7/7/19 → 7/11/19

Bibliographical note

Publisher Copyright:
© Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019. All rights reserved.

ASJC Scopus Subject Areas

Acoustics and Ultrasonics

Keywords

Active noise control
Equivalent sources model
Sound field separation

Cite this

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title = "Scattered sound field separation based on the equivalent source method",

abstract = "Scattered sound field separation is important for three-dimensional active scattered noise control. However, because the free-field Green's function fails to characterize the spherical scattering transfer function, the equivalent source strength of the solution is incorrect when the equivalent source method (ESM) is applied in near-field acoustic holography. A constrained scattered sound field separation method is proposed that overcomes the application limitations of the ESM. In this paper, a rigid sphere is considered. By constraining the direct sound pressure on the measurement surface and extending the equation to be solved, a more accurate equivalent source strength is obtained.",

keywords = "Active noise control, Equivalent sources model, Sound field separation",

author = "Ran Wang and Xiaolin Wang and Jun Yang and Jingwei Liu and Yuwei Feng",

note = "Publisher Copyright: {\textcopyright} Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019. All rights reserved.; 26th International Congress on Sound and Vibration, ICSV 2019 ; Conference date: 07-07-2019 Through 11-07-2019",

year = "2019",

language = "English",

series = "Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019",

publisher = "Canadian Acoustical Association",

booktitle = "Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019",

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}

Wang, R, Wang, X, Yang, J, Liu, J & Feng, Y 2019, Scattered sound field separation based on the equivalent source method. in Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019. Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019, Canadian Acoustical Association, 26th International Congress on Sound and Vibration, ICSV 2019, Montreal, Canada, 7/7/19.

Scattered sound field separation based on the equivalent source method. / Wang, Ran; Wang, Xiaolin; Yang, Jun et al.
Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019. Canadian Acoustical Association, 2019. (Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Scattered sound field separation based on the equivalent source method

AU - Wang, Ran

AU - Wang, Xiaolin

AU - Yang, Jun

AU - Liu, Jingwei

AU - Feng, Yuwei

PY - 2019

Y1 - 2019

N2 - Scattered sound field separation is important for three-dimensional active scattered noise control. However, because the free-field Green's function fails to characterize the spherical scattering transfer function, the equivalent source strength of the solution is incorrect when the equivalent source method (ESM) is applied in near-field acoustic holography. A constrained scattered sound field separation method is proposed that overcomes the application limitations of the ESM. In this paper, a rigid sphere is considered. By constraining the direct sound pressure on the measurement surface and extending the equation to be solved, a more accurate equivalent source strength is obtained.

AB - Scattered sound field separation is important for three-dimensional active scattered noise control. However, because the free-field Green's function fails to characterize the spherical scattering transfer function, the equivalent source strength of the solution is incorrect when the equivalent source method (ESM) is applied in near-field acoustic holography. A constrained scattered sound field separation method is proposed that overcomes the application limitations of the ESM. In this paper, a rigid sphere is considered. By constraining the direct sound pressure on the measurement surface and extending the equation to be solved, a more accurate equivalent source strength is obtained.

KW - Active noise control

KW - Equivalent sources model

KW - Sound field separation

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M3 - Conference contribution

AN - SCOPUS:85084628620

T3 - Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019

BT - Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019

PB - Canadian Acoustical Association

T2 - 26th International Congress on Sound and Vibration, ICSV 2019

Y2 - 7 July 2019 through 11 July 2019

ER -

Scattered sound field separation based on the equivalent source method

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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Cite this