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WO2012074403A3 - Appareil de filtre de réduction du bruit actif et procédé de fabrication d'un tel appareil - Google Patents

Appareil de filtre de réduction du bruit actif et procédé de fabrication d'un tel appareil Download PDF

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Publication number
WO2012074403A3
WO2012074403A3 PCT/NL2011/050828 NL2011050828W WO2012074403A3 WO 2012074403 A3 WO2012074403 A3 WO 2012074403A3 NL 2011050828 W NL2011050828 W NL 2011050828W WO 2012074403 A3 WO2012074403 A3 WO 2012074403A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
noise
reference signal
secondary source
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/NL2011/050828
Other languages
English (en)
Other versions
WO2012074403A2 (fr
Inventor
Arthur Perry Berkhoff
Johan Wesselink
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
Original Assignee
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO filed Critical Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
Priority to EP11797371.9A priority Critical patent/EP2647001A2/fr
Publication of WO2012074403A2 publication Critical patent/WO2012074403A2/fr
Publication of WO2012074403A3 publication Critical patent/WO2012074403A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17813—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms
    • G10K11/17817—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms between the output signals and the error signals, i.e. secondary path
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17855—Methods, e.g. algorithms; Devices for improving speed or power requirements
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/12—Rooms, e.g. ANC inside a room, office, concert hall or automobile cabin
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3055—Transfer function of the acoustic system

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Networks Using Active Elements (AREA)

Abstract

L'invention se rapporte à un appareil de filtre de réduction du bruit actif destiné à réduire activement le bruit (d) d'au moins un signal de référence (x) d'une source de bruit primaire. L'appareil comprend un connecteur de signal source secondaire raccordé à une source secondaire qui génère un bruit secondaire (y) sur la base d'un signal secondaire (u) afin de réduire ledit bruit primaire (d). Un connecteur de capteur est raccordé à un capteur pour mesurer lesdits bruits primaire et secondaire sous la forme d'un signal d'erreur (e). Un connecteur de signal de référence reçoit le signal de référence (x) et un filtre de commande (W) reçoit le signal de référence (x) et calcule un signal de commande pour fournir le signal (u). Un circuit d'adaptation reçoit ledit signal d'erreur (e) et ledit signal de référence (x) et adapte le filtre de commande (W). Le circuit d'adaptation adapte le filtre (W) à l'aide d'une représentation de ladite source secondaire comportant une fonction de transfert de source secondaire (G) de ladite source secondaire et un amortissement supplémentaire pour offrir une meilleure stabilité.
PCT/NL2011/050828 2010-12-01 2011-12-01 Appareil de filtre de réduction du bruit actif et procédé de fabrication d'un tel appareil Ceased WO2012074403A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11797371.9A EP2647001A2 (fr) 2010-12-01 2011-12-01 Appareil de filtre de réduction du bruit actif et procédé de fabrication d'un tel appareil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10193244.0 2010-12-01
EP10193244 2010-12-01

Publications (2)

Publication Number Publication Date
WO2012074403A2 WO2012074403A2 (fr) 2012-06-07
WO2012074403A3 true WO2012074403A3 (fr) 2012-11-15

Family

ID=45370717

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2011/050828 Ceased WO2012074403A2 (fr) 2010-12-01 2011-12-01 Appareil de filtre de réduction du bruit actif et procédé de fabrication d'un tel appareil

Country Status (2)

Country Link
EP (1) EP2647001A2 (fr)
WO (1) WO2012074403A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109658947B (zh) * 2018-11-18 2022-12-09 南京大学 一种同步建模和控制的主动噪声控制方法
CN113077778B (zh) * 2020-01-03 2023-01-10 中车唐山机车车辆有限公司 动车组主动降噪系统
CN112233641B (zh) * 2020-10-14 2024-09-20 南京南大电子智慧型服务机器人研究院有限公司 一种提升分散式有源噪声控制系统稳定性的方法
CN113345400B (zh) * 2021-05-31 2024-06-21 锐迪科微电子（上海）有限公司 可穿戴设备的主动降噪系统的校准方法及装置、存储介质、终端
CN113345401B (zh) * 2021-05-31 2024-09-20 锐迪科微电子（上海）有限公司 可穿戴设备的主动降噪系统的校准方法及装置、存储介质、终端
CN113763917A (zh) * 2021-09-30 2021-12-07 展讯通信（上海）有限公司 滤波器处理方法及装置
CN115248976B (zh) * 2021-12-31 2024-04-30 宿迁学院 一种基于降采样稀疏fir滤波器的次级通道建模方法
CN114707349B (zh) * 2022-04-21 2025-02-11 南京航空航天大学 基于机械阻抗的直升机振动控制方法、装置和存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837834A (en) * 1988-05-04 1989-06-06 Nelson Industries, Inc. Active acoustic attenuation system with differential filtering
US5117401A (en) * 1990-08-16 1992-05-26 Hughes Aircraft Company Active adaptive noise canceller without training mode
US5638022A (en) * 1992-06-25 1997-06-10 Noise Cancellation Technologies, Inc. Control system for periodic disturbances
US20100150369A1 (en) * 2005-12-02 2010-06-17 Arthur Perry Berkhoff Filter apparatus for actively reducing noise

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837834A (en) * 1988-05-04 1989-06-06 Nelson Industries, Inc. Active acoustic attenuation system with differential filtering
US5117401A (en) * 1990-08-16 1992-05-26 Hughes Aircraft Company Active adaptive noise canceller without training mode
US5638022A (en) * 1992-06-25 1997-06-10 Noise Cancellation Technologies, Inc. Control system for periodic disturbances
US20100150369A1 (en) * 2005-12-02 2010-06-17 Arthur Perry Berkhoff Filter apparatus for actively reducing noise

Also Published As

Publication number Publication date
EP2647001A2 (fr) 2013-10-09
WO2012074403A2 (fr) 2012-06-07

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