MX170248B - Filtro digital, adaptativo, que incluye una parte no recursiva y una parte recursiva - Google Patents

Filtro digital, adaptativo, que incluye una parte no recursiva y una parte recursiva

Info

Publication number
MX170248B
MX170248B MX016126A MX1612689A MX170248B MX 170248 B MX170248 B MX 170248B MX 016126 A MX016126 A MX 016126A MX 1612689 A MX1612689 A MX 1612689A MX 170248 B MX170248 B MX 170248B
Authority
MX
Mexico
Prior art keywords
recursive
recursive part
multiplication
adaptive
filter
Prior art date
Application number
MX016126A
Other languages
English (en)
Inventor
Tore Mikael Andre
Original Assignee
Ericsson Telefon Ab L M
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 Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of MX170248B publication Critical patent/MX170248B/es

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/237—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using two adaptive filters, e.g. for near end and for end echo cancelling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)

Abstract

La presente invención se refiere a filtro digital adaptativo, que incluye una parte no recursiva y una parte recursiva, caracterizado porque la parte recursiva incluye una pluralidad de ramificaciones, cada una de las cuales tiene su filtro recursivo separado, permanentemente reglado, que tienen respuestas de impulso mutuamente diferentes, y medios de multiplicación individuales, con un factor de multiplicación adaptativo; la parte recursiva también incluye medios sumadores que, junto con los medios de multiplicación, están adaptados para formar una combinación lineal de las señales de salida de los filtros recursivos; y el filtro está adaptado para actualización por una sola señal que es usada para actualizar la parte no recursiva y los factores de multiplicación adaptativos de los medios de multiplicación en la parte recursiva.
MX016126A 1988-06-03 1989-05-19 Filtro digital, adaptativo, que incluye una parte no recursiva y una parte recursiva MX170248B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8802076A SE461308B (sv) 1988-06-03 1988-06-03 Adaptivt digitalt filter omfattande en icke rekursiv del och en rekursiv del

Publications (1)

Publication Number Publication Date
MX170248B true MX170248B (es) 1993-08-12

Family

ID=20372511

Family Applications (1)

Application Number Title Priority Date Filing Date
MX016126A MX170248B (es) 1988-06-03 1989-05-19 Filtro digital, adaptativo, que incluye una parte no recursiva y una parte recursiva

Country Status (18)

Country Link
US (1) US5014232A (es)
EP (1) EP0347394B1 (es)
JP (1) JPH03502634A (es)
KR (1) KR960000843B1 (es)
CN (1) CN1014288B (es)
AU (1) AU609611B2 (es)
BR (1) BR8906966A (es)
CA (1) CA1310708C (es)
DE (1) DE68905246T2 (es)
DK (1) DK170319B1 (es)
ES (1) ES2038449T3 (es)
FI (1) FI93409C (es)
GR (1) GR3007321T3 (es)
MX (1) MX170248B (es)
NO (1) NO301203B1 (es)
SE (1) SE461308B (es)
TR (1) TR24214A (es)
WO (1) WO1989012360A1 (es)

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DE69226130T2 (de) * 1991-04-23 1999-02-11 Philips Electronics Nv Halbrekursiver adaptiver Entzerrer
ES2038904B1 (es) * 1991-09-10 1995-01-16 Alcatel Standard Electrica Procedimiento y dispositivo de cancelacion adaptativa de ecos acusticos.
EP0543568A2 (en) * 1991-11-22 1993-05-26 AT&T Corp. High resolution filtering using low resolution processors
US5402520A (en) * 1992-03-06 1995-03-28 Schnitta; Bonnie S. Neural network method and apparatus for retrieving signals embedded in noise and analyzing the retrieved signals
US5337264A (en) * 1992-06-01 1994-08-09 Levien Raphael L Time reversal gaussian approximation filter
US5615233A (en) * 1992-07-22 1997-03-25 Motorola, Inc. Method for channel estimation using individual adaptation
US5416799A (en) * 1992-08-10 1995-05-16 Stanford Telecommunications, Inc. Dynamically adaptive equalizer system and method
CA2145077C (en) * 1992-09-21 1998-09-01 Graham P. Eatwell Sampled-data filter with low delay
US5617423A (en) * 1993-01-08 1997-04-01 Multi-Tech Systems, Inc. Voice over data modem with selectable voice compression
US6009082A (en) * 1993-01-08 1999-12-28 Multi-Tech Systems, Inc. Computer-based multifunction personal communication system with caller ID
US5546395A (en) * 1993-01-08 1996-08-13 Multi-Tech Systems, Inc. Dynamic selection of compression rate for a voice compression algorithm in a voice over data modem
US5535204A (en) * 1993-01-08 1996-07-09 Multi-Tech Systems, Inc. Ringdown and ringback signalling for a computer-based multifunction personal communications system
US5812534A (en) * 1993-01-08 1998-09-22 Multi-Tech Systems, Inc. Voice over data conferencing for a computer-based personal communications system
US5452289A (en) * 1993-01-08 1995-09-19 Multi-Tech Systems, Inc. Computer-based multifunction personal communications system
US5864560A (en) * 1993-01-08 1999-01-26 Multi-Tech Systems, Inc. Method and apparatus for mode switching in a voice over data computer-based personal communications system
US5754589A (en) * 1993-01-08 1998-05-19 Multi-Tech Systems, Inc. Noncompressed voice and data communication over modem for a computer-based multifunction personal communications system
US5453986A (en) * 1993-01-08 1995-09-26 Multi-Tech Systems, Inc. Dual port interface for a computer-based multifunction personal communication system
JPH0784993A (ja) * 1993-09-17 1995-03-31 Fujitsu Ltd 信号抑圧装置
JP2872547B2 (ja) * 1993-10-13 1999-03-17 シャープ株式会社 格子型フィルタを用いた能動制御方法および装置
US5757801A (en) 1994-04-19 1998-05-26 Multi-Tech Systems, Inc. Advanced priority statistical multiplexer
US5682386A (en) * 1994-04-19 1997-10-28 Multi-Tech Systems, Inc. Data/voice/fax compression multiplexer
FR2729024A1 (fr) * 1994-12-30 1996-07-05 Matra Communication Annuleur d'echo acoustique avec filtrage en sous-bandes
FI98015C (fi) * 1995-05-05 1997-03-25 Unto Kalervo Laine Menetelmä signaalin spektrin mallintamiseksi ja laite menetelmän toteuttamiseksi
FI98177C (fi) 1995-06-01 1997-04-25 Nokia Mobile Phones Ltd Menetelmä ja piirijärjestely häiriöllisen signaalin käsittelemiseksi
DE59712715D1 (de) * 1997-08-05 2006-10-05 Micronas Semiconductor Holding Adaptives Filter
US7242782B1 (en) 1998-07-31 2007-07-10 Onkyo Kk Audio signal processing circuit
US6745218B1 (en) * 1999-03-16 2004-06-01 Matsushita Electric Industrial Co., Ltd. Adaptive digital filter
US6813352B1 (en) * 1999-09-10 2004-11-02 Lucent Technologies Inc. Quadrature filter augmentation of echo canceler basis functions
DE19955596A1 (de) * 1999-11-18 2001-06-13 Infineon Technologies Ag Vorrichtung und Verfahren zur Echokompensation bei Gleichlage-Übertragungsverfahren im Duplex-Betrieb über eine Zweidrahtleitung
US6980592B1 (en) * 1999-12-23 2005-12-27 Agere Systems Inc. Digital adaptive equalizer for T1/E1 long haul transceiver
US6480151B2 (en) 2000-12-29 2002-11-12 Lockheed Martin Corporation GPS receiver interference nuller with no satellite signal distortion
US7079574B2 (en) 2001-01-17 2006-07-18 Radiant Networks Plc Carrier phase recovery system for adaptive burst modems and link hopping radio networks
US6628707B2 (en) 2001-05-04 2003-09-30 Radiant Networks Plc Adaptive equalizer system for short burst modems and link hopping radio networks
EP1618659A2 (en) * 2003-04-17 2006-01-25 Koninklijke Philips Electronics N.V. Adaptive filtering
US7406493B2 (en) * 2004-03-17 2008-07-29 Tektronix, Inc. Up-sampling half-band reconstruction filtering
US7199964B2 (en) * 2005-06-29 2007-04-03 Seagate Technology Llc Adaptive voltage-mode controller for a voice coil motor
NO322301B1 (no) * 2005-07-13 2006-09-11 Tandberg Telecom As Fremgangsmate og system for ekkokansellering med liten forsinkelse.
WO2008041612A1 (fr) * 2006-09-29 2008-04-10 Panasonic Corporation Dispositif d'égalisation de formes d'onde
RU198305U1 (ru) * 2020-02-26 2020-06-30 Федеральное государственное бюджетное образовательное учреждение высшего образования "МИРЭА - Российский технологический университет" Адаптивный цифровой фильтр для подавления нефлуктуационных помех

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US4495591A (en) * 1981-02-27 1985-01-22 The Regeants Of The University Of California Pipelined digital filters
DE3116266A1 (de) * 1981-04-24 1982-11-11 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zum entzerren eines datensignales
DE3120434A1 (de) * 1981-05-22 1982-12-16 Standard Elektrik Lorenz Ag, 7000 Stuttgart Adaptive echokompensationseinrichtung zur digitalen duplexuebertragung auf zweidrahtleitungen
JPS5834615A (ja) * 1981-08-24 1983-03-01 Victor Co Of Japan Ltd Ｉｉｒデイジタルフイルタ
FR2515901A1 (fr) * 1981-11-04 1983-05-06 Trt Telecom Radio Electr Systeme de transmission mic-differentiel avec prediction adaptative
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Also Published As

Publication number Publication date
AU3567089A (en) 1990-01-05
GR3007321T3 (es) 1993-07-30
DE68905246T2 (de) 1993-06-17
DK170319B1 (da) 1995-07-31
ES2038449T3 (es) 1993-07-16
BR8906966A (pt) 1990-12-18
TR24214A (tr) 1991-07-02
AU609611B2 (en) 1991-05-02
SE8802076L (sv) 1989-12-04
NO900357L (no) 1990-01-25
US5014232A (en) 1991-05-07
DK21990D0 (da) 1990-01-26
EP0347394B1 (en) 1993-03-10
CA1310708C (en) 1992-11-24
CN1014288B (zh) 1991-10-09
FI93409C (sv) 1995-03-27
DE68905246D1 (de) 1993-04-15
FI93409B (sv) 1994-12-15
DK21990A (da) 1990-01-26
NO301203B1 (no) 1997-09-22
WO1989012360A1 (en) 1989-12-14
SE461308B (sv) 1990-01-29
NO900357D0 (no) 1990-01-25
FI900406A0 (fi) 1990-01-25
SE8802076D0 (sv) 1988-06-03
CN1038193A (zh) 1989-12-20
KR960000843B1 (ko) 1996-01-13
JPH03502634A (ja) 1991-06-13
KR900702646A (ko) 1990-12-08
EP0347394A1 (en) 1989-12-20

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