GB9405953D0 - Time domain adaptive control system - Google Patents

Time domain adaptive control system

Info

Publication number
GB9405953D0
GB9405953D0 GB9405953A GB9405953A GB9405953D0 GB 9405953 D0 GB9405953 D0 GB 9405953D0 GB 9405953 A GB9405953 A GB 9405953A GB 9405953 A GB9405953 A GB 9405953A GB 9405953 D0 GB9405953 D0 GB 9405953D0
Authority
GB
United Kingdom
Prior art keywords
control system
time domain
adaptive control
domain adaptive
time
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.)
Withdrawn
Application number
GB9405953A
Other versions
GB2287851A (en
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.)
Lotus Cars Ltd
Original Assignee
Lotus Cars Ltd
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 Lotus Cars Ltd filed Critical Lotus Cars Ltd
Priority to GB9405953A priority Critical patent/GB2287851A/en
Publication of GB9405953D0 publication Critical patent/GB9405953D0/en
Priority to JP52503595A priority patent/JP3646809B2/en
Priority to EP95912352A priority patent/EP0752124A1/en
Priority to PCT/GB1995/000666 priority patent/WO1995026521A1/en
Publication of GB2287851A publication Critical patent/GB2287851A/en
Withdrawn legal-status Critical Current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
    • G10K11/1781—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
    • G10K11/17853—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
    • G10K11/1787—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
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3018—Correlators, e.g. convolvers or coherence calculators
    • 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
    • G10K2210/3035—Models, e.g. of the acoustic system
    • 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
    • G10K2210/3053—Speeding up computation or convergence, or decreasing the computational load
GB9405953A 1994-03-25 1994-03-25 Time domain adaptive control system for active noise cancellation Withdrawn GB2287851A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9405953A GB2287851A (en) 1994-03-25 1994-03-25 Time domain adaptive control system for active noise cancellation
JP52503595A JP3646809B2 (en) 1994-03-25 1995-03-24 Time domain adaptive control system
EP95912352A EP0752124A1 (en) 1994-03-25 1995-03-24 Time domain adaptive control system
PCT/GB1995/000666 WO1995026521A1 (en) 1994-03-25 1995-03-24 Time domain adaptive control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9405953A GB2287851A (en) 1994-03-25 1994-03-25 Time domain adaptive control system for active noise cancellation

Publications (2)

Publication Number Publication Date
GB9405953D0 true GB9405953D0 (en) 1994-05-11
GB2287851A GB2287851A (en) 1995-09-27

Family

ID=10752507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9405953A Withdrawn GB2287851A (en) 1994-03-25 1994-03-25 Time domain adaptive control system for active noise cancellation

Country Status (4)

Country Link
EP (1) EP0752124A1 (en)
JP (1) JP3646809B2 (en)
GB (1) GB2287851A (en)
WO (1) WO1995026521A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308898B (en) * 1996-01-02 1999-06-23 Wolfgang Johannes Hube Klippel Adaptive nonlinear controller for an electromechanic or an electroacoustic system
US5926405A (en) * 1996-06-24 1999-07-20 Lucent Technologies, Inc. Multidimensional adaptive system
DE19632230C2 (en) * 1996-08-09 1999-12-16 Mueller Bbm Gmbh Adaptive control for active noise reduction, use and procedures
US20030112981A1 (en) * 2001-12-17 2003-06-19 Siemens Vdo Automotive, Inc. Active noise control with on-line-filtered C modeling
US7450725B2 (en) * 2001-12-17 2008-11-11 Mahle International Gmbh Digital filter modeling for active noise cancellation
US9020158B2 (en) 2008-11-20 2015-04-28 Harman International Industries, Incorporated Quiet zone control system
US8320581B2 (en) 2010-03-03 2012-11-27 Bose Corporation Vehicle engine sound enhancement
US9299337B2 (en) 2011-01-11 2016-03-29 Bose Corporation Vehicle engine sound enhancement
JP2018142210A (en) * 2017-02-28 2018-09-13 株式会社デンソー Signal processing system
CN109541938B (en) * 2017-09-22 2022-01-28 中国科学院理化技术研究所 Self-adaptive active feedforward control dual-sound-source driving thermoacoustic system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715559A (en) * 1986-05-15 1987-12-29 Fuller Christopher R Apparatus and method for global noise reduction
GB8615315D0 (en) * 1986-06-23 1986-07-30 Secr Defence Aircraft cabin noise control apparatus
JP2890196B2 (en) * 1986-10-07 1999-05-10 アダプティブ コントロール リミテッド Active vibration control device or related improvements
US5251262A (en) * 1990-06-29 1993-10-05 Kabushiki Kaisha Toshiba Adaptive active noise cancellation apparatus
GB2271908B (en) * 1992-10-21 1996-05-15 Lotus Car Adaptive control system

Also Published As

Publication number Publication date
JPH09511081A (en) 1997-11-04
GB2287851A (en) 1995-09-27
EP0752124A1 (en) 1997-01-08
JP3646809B2 (en) 2005-05-11
WO1995026521A1 (en) 1995-10-05

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)