CO4600620A1 - Circuito supresor de ruido y metodo asociado para eliminar porciones de componentes de interferencia periodica de una senal de comunicacion - Google Patents

Circuito supresor de ruido y metodo asociado para eliminar porciones de componentes de interferencia periodica de una senal de comunicacion

Info

Publication number
CO4600620A1
CO4600620A1 CO97013622A CO97013622A CO4600620A1 CO 4600620 A1 CO4600620 A1 CO 4600620A1 CO 97013622 A CO97013622 A CO 97013622A CO 97013622 A CO97013622 A CO 97013622A CO 4600620 A1 CO4600620 A1 CO 4600620A1
Authority
CO
Colombia
Prior art keywords
signal
noise component
noise
receiving
portions
Prior art date
Application number
CO97013622A
Other languages
English (en)
Inventor
Eric Douglas Romesburg
Original Assignee
Ericsson Inc
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 Ericsson Inc filed Critical Ericsson Inc
Publication of CO4600620A1 publication Critical patent/CO4600620A1/es

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0224—Processing in the time domain
    • 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
    • G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
    • 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
    • G10K2210/128—Vehicles
    • 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
    • G10K2210/3027—Feedforward
    • 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
    • G10K2210/3032—Harmonics or sub-harmonics
    • 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
    • G10K2210/50—Miscellaneous
    • G10K2210/511—Narrow band, e.g. implementations for single frequency cancellation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L2021/02085—Periodic noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Noise Elimination (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Un supresor de ruido para suprimir porciones seleccionadasde componentes de ruido de una señal receptora que contenga una porción del componente informacional, donde dicho supresor de ruido comprenda: un estimador del componente de ruido acoplado para recibir al menos una señal indicativa de la señal receptora, dicho estimador del componente de ruido para estimar porciones del componente de ruido periódico de dominio temporal de la señal receptora las cuales son generadas por lo menos por una fuente de interferencia periódica y para generar una señal de estimación del componente de ruido del dominio temporal que responde a ello; yun substractor del componente de ruido acoplado para recibir la señal indicativa de la señal receptora y para recibir la señal del componente del ruido de dominio temporal generada por dicho estimador del componente de ruido, dicho substrator del componente de ruido para substraer valores de la señal del estimador del componente de ruido del dominio temporal a partir de la señal indicativa de la señal receptora y para formar una señal supresora de ruido que responde a ello, la señal supresora de ruido representativa de la señal receptora en la cual las porciones de componente de ruido generadas por la fuente de interferencia periódica son eliminadas. 1Un método de dominio temporal para suprimir porciones seleccionadas del componente de ruido de una señal receptora que tenga una porción de componente informacional donde dicho método consta de los siguientes pasos:- estimación de las porciones de los componentes de ruido de la señal receptora las cuales son generadas por una fuente de interferencia periódica - generación de una señal de estimación del componente de ruido a las porciones del componente de ruido estimadas durante dicho paso de detección;...
CO97013622A 1996-03-13 1997-03-13 Circuito supresor de ruido y metodo asociado para eliminar porciones de componentes de interferencia periodica de una senal de comunicacion CO4600620A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/614,543 US5903819A (en) 1996-03-13 1996-03-13 Noise suppressor circuit and associated method for suppressing periodic interference component portions of a communication signal

Publications (1)

Publication Number Publication Date
CO4600620A1 true CO4600620A1 (es) 1998-05-08

Family

ID=24461706

Family Applications (1)

Application Number Title Priority Date Filing Date
CO97013622A CO4600620A1 (es) 1996-03-13 1997-03-13 Circuito supresor de ruido y metodo asociado para eliminar porciones de componentes de interferencia periodica de una senal de comunicacion

Country Status (13)

Country Link
US (1) US5903819A (es)
EP (1) EP0886852A1 (es)
JP (1) JP2000507054A (es)
KR (1) KR100443863B1 (es)
CN (1) CN1120473C (es)
AR (1) AR006212A1 (es)
AU (1) AU710617B2 (es)
BR (1) BR9707981A (es)
CO (1) CO4600620A1 (es)
EE (1) EE04076B1 (es)
HK (1) HK1020102A1 (es)
ID (1) ID16462A (es)
WO (1) WO1997034290A1 (es)

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Also Published As

Publication number Publication date
KR100443863B1 (ko) 2005-06-02
KR19990087725A (ko) 1999-12-27
ID16462A (id) 1997-10-02
BR9707981A (pt) 1999-07-27
HK1020102A1 (en) 2000-03-10
AU2208997A (en) 1997-10-01
AR006212A1 (es) 1999-08-11
CN1120473C (zh) 2003-09-03
EP0886852A1 (en) 1998-12-30
AU710617B2 (en) 1999-09-23
US5903819A (en) 1999-05-11
EE04076B1 (et) 2003-06-16
CN1222994A (zh) 1999-07-14
EE9800290A (et) 1999-02-15
JP2000507054A (ja) 2000-06-06
WO1997034290A1 (en) 1997-09-18

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