AR241298A1 - Ecualizador transversal adaptivo . - Google Patents

Ecualizador transversal adaptivo .

Info

Publication number
AR241298A1
AR241298A1 AR86304839A AR30483986A AR241298A1 AR 241298 A1 AR241298 A1 AR 241298A1 AR 86304839 A AR86304839 A AR 86304839A AR 30483986 A AR30483986 A AR 30483986A AR 241298 A1 AR241298 A1 AR 241298A1
Authority
AR
Argentina
Prior art keywords
channel
equalizer
departure
delay time
elements
Prior art date
Application number
AR86304839A
Other languages
English (en)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AR241298A1 publication Critical patent/AR241298A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/0342—QAM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03515—Tapped delay lines irregularly spaced
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms
    • H04L2025/03624—Zero-forcing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)
  • Catalysts (AREA)
  • Power Steering Mechanism (AREA)

Abstract

COMPRENDE UNA PLURALIDAD DE ELEMENTOS DE RETARDO CONECTADOS ITERATIVAMENTE, CADA UNO CON UN TIEMPO DE RETARDO T CORRESPONDIENTE A LA SEPARACION ENTRE DOS SENALES TRANSMITIDAS SUCESIVAMENTE; COMPRENDIENDO UNA PLURALIDAD DE ELEMENTOS DE CONTROL, CADA UNO DE LOS CUALES ESTA CONECTADO A RESPECTIVAS ENTRADAS DE UN SUMADOR Y TENIENDO VARIABLES MANIPULADAS QUE REPRESENTAN COEFICIENTES DERIVADOSDE SENALES DE SALIDA DE UNA ETAPA DE DECISION DEL TIPO CAPAZ DE PROVEER (N-1) COEFICIENTES POSITIVOS Y M COEFICIENTES NEGATIVOS DE ACUERDO A UN ALGORITMO DE FORZADO A CERO Y ESTA CONECTADA A UNADISPOSICION DE FILTRO TRANSVERSAL LINEAL QUE FORMA UNA VIA DE RECURSION CONTROLADA POR DECISION, SIENDO EL ECUALIZADOR UN ECUALIZADOR TRANSVERSAL COMPLEJO QUE PRESENTA ECUALIZADORES DE IGUAL DISENO EN UNA CANAL I Y UN CANAL Q, Y ESTANDO PROVISTAS VIAS DE REALIMENTACION DESDE LA SALIDA DE LA ETAPA DE DECISION DE CADA CANAL A UN CORRESPONDIENTE ELEMENTO DE CONTROL DEL MISMO CANAL Y DEL OTRO CANAL, ESTANDO FORM ADA DICHA ETAPA DE DECISION POR UN CONVERTIDOR ANALOGICO-DIGITAL QUE TIENE TRES SALIDAS EN DONDE LA PRIMER SALIDA ESTA CONECTADA A UNA PLURALIDAD DE ELEMENTOS DE RETARDO CONECTADOS EN SERIE CONECTADOS A PRIMERAS ENTRADAS DE UNA PLURALIDAD DE COMPUESTAS LOGICAS, LAS SEGUNDAS ENTRADAS DE ESTAS COMPUERTAS LOGICAS ESTAN CONECTADAS A LA TERCERA SALIDA DE LA ETAPA DE DECISION A TRAVES DE UN MEDIO DE RETARDO QUE TIENE UN TIEMPO DE RETARDO MAYOR QUE T, LAS SALIDAS DE LOS ELEMENTOS LOGICOS ESTAS CONECTADAS A RESPECTIVOS INTEGRADORES PARA CADA UNO DE LOS COEFICIENTES.
AR86304839A 1985-10-03 1986-08-07 Ecualizador transversal adaptivo . AR241298A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3535390 1985-10-03

Publications (1)

Publication Number Publication Date
AR241298A1 true AR241298A1 (es) 1992-04-30

Family

ID=6282713

Family Applications (1)

Application Number Title Priority Date Filing Date
AR86304839A AR241298A1 (es) 1985-10-03 1986-08-07 Ecualizador transversal adaptivo .

Country Status (13)

Country Link
US (1) US4745623A (es)
EP (1) EP0218181B1 (es)
JP (1) JPH0813011B2 (es)
AR (1) AR241298A1 (es)
AT (1) ATE60857T1 (es)
AU (1) AU587501B2 (es)
BR (1) BR8604776A (es)
DE (1) DE3677447D1 (es)
ES (1) ES2019862B3 (es)
GR (1) GR3001438T3 (es)
MX (1) MX161447A (es)
NO (1) NO173969C (es)
YU (1) YU46740B (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1188626B (it) * 1986-03-25 1988-01-20 Gte Telecom Spa Metodo e dispositivo di equalizzazione adattiva cieca
YU47270B (sh) * 1986-10-31 1995-01-31 Siemens Aktiengesellschaft Berlin I Minhen Adaptivni korektor frekvencijskog domena za digitalne radio relejne sisteme
US5042026A (en) * 1987-03-03 1991-08-20 Nec Corporation Circuit for cancelling whole or part of a waveform using nonrecursive and recursive filters
JPH02292918A (ja) * 1989-05-08 1990-12-04 Hitachi Ltd ４相変調信号の受信装置
SE469251B (sv) * 1991-10-16 1993-06-07 Ericsson Telefon Ab L M Beslutsaaterkopplad olinjaer utjaemnare
JP2934353B2 (ja) * 1992-06-24 1999-08-16 三菱電機株式会社 半導体装置およびその製造方法
FI98578C (fi) * 1995-04-24 1997-07-10 Nokia Technology Gmbh Menetelmä ja piirijärjestely tiedonsiirtosignaalin viivästyneiden komponenttien kompensoimiseksi
DE19526257B4 (de) * 1995-07-19 2005-01-05 Marconi Communications Gmbh Adaptiver Kanalentzerrer
GB2305828B (en) * 1995-09-29 2000-06-14 Sony Corp Automatic equalizer and digital signal reproducing apparatus carrying the same
US8199803B2 (en) 2006-07-14 2012-06-12 Nokia Siemens Neworks GmbH & Co. KG Receiver structure and method for the demodulation of a quadrature-modulated signal
US8995520B2 (en) * 2011-02-14 2015-03-31 Fujitsu Limited Analog continuous-time phase equalizer for data transmission

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5454559A (en) * 1977-10-11 1979-04-28 Fujitsu Ltd Automatic equalizer
JPS54109720A (en) * 1978-02-16 1979-08-28 Toshiba Corp Ghost signal erasing device
AU532416B2 (en) * 1979-09-19 1983-09-29 Plessey Overseas Ltd. Transversal equalisers
JPS5678243A (en) * 1979-11-30 1981-06-27 Fujitsu Ltd Data mode converging method
JPS5757023A (en) * 1980-09-24 1982-04-06 Toshiba Corp Transversal equalizer
JPS5827475A (ja) * 1981-08-11 1983-02-18 Hitachi Ltd ゴ−スト除去装置
US4524424A (en) * 1982-02-18 1985-06-18 Rockwell International Corporation Adaptive spectrum shaping filter
NL8202438A (nl) * 1982-06-16 1984-01-16 Philips Nv Eindinrichting voor een duplex transmissiestelsel.
US4468786A (en) * 1982-09-21 1984-08-28 Harris Corporation Nonlinear equalizer for correcting intersymbol interference in a digital data transmission system
JPS59211313A (ja) * 1983-05-17 1984-11-30 Toshiba Corp 自動等化器
US4550415A (en) * 1983-11-16 1985-10-29 At&T Bell Laboratories Fractionally spaced equalization using nyquist-rate coefficient updating

Also Published As

Publication number Publication date
AU6344286A (en) 1987-04-09
YU46740B (sh) 1994-04-05
JPS6286926A (ja) 1987-04-21
AU587501B2 (en) 1989-08-17
EP0218181A1 (de) 1987-04-15
JPH0813011B2 (ja) 1996-02-07
YU157986A (en) 1988-12-31
ES2019862B3 (es) 1991-07-16
NO173969B (no) 1993-11-15
EP0218181B1 (de) 1991-02-06
US4745623A (en) 1988-05-17
ATE60857T1 (de) 1991-02-15
BR8604776A (pt) 1987-06-30
MX161447A (es) 1990-09-27
NO863760L (no) 1987-04-06
NO863760D0 (no) 1986-09-22
GR3001438T3 (en) 1992-09-25
NO173969C (no) 1994-02-23
DE3677447D1 (de) 1991-03-14

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