ES2131068T3 - Aparato y metodo para la ecualizacion en un receptor de una señal alterada. - Google Patents

Aparato y metodo para la ecualizacion en un receptor de una señal alterada.

Info

Publication number
ES2131068T3
ES2131068T3 ES92903693T ES92903693T ES2131068T3 ES 2131068 T3 ES2131068 T3 ES 2131068T3 ES 92903693 T ES92903693 T ES 92903693T ES 92903693 T ES92903693 T ES 92903693T ES 2131068 T3 ES2131068 T3 ES 2131068T3
Authority
ES
Spain
Prior art keywords
complex filter
receiver
equalization
mlse
produce
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.)
Expired - Lifetime
Application number
ES92903693T
Other languages
English (en)
Inventor
Gerald P Labedz
Michael D Kotzin
Joseph J Schuler
Eric F Ziolko
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ES2131068T3 publication Critical patent/ES2131068T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03299—Arrangements for operating in conjunction with other apparatus with noise-whitening circuitry
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H04L25/0218—Channel estimation of impulse response with detection of nulls
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals

Abstract

SE DESCRIBE UN SISTEMA PARA ECUALIZAR UNA SEÑAL ALTERADA. EL SISTEMA DE ECUALIZACION INCLUYE UN FILTRO COMPLEJO ADAPTADO (400) Y UN ESTIMADOR DE SECUENCIA PROBABLE MAXIMA MLSE) (405) PARA ELIMINAR LOS DEFECTOS DEL DESPLAZAMIENTO DE FASE, VARIACIONES DE AMPLITUD, INTERFERENCIA ENTRE SIMBOLOS, ETC., RESULTANTES DE TRAYECTORIAS MULTIPLES Y RUIDO APORTADO POR EL EXTREMO DELANTERO DEL RECEPTOR. EL SISTEMA ESTIMA UNA SEÑAL DE CORRELACION C(T) (505) PARA HACER MAXIMA SU ENERGIA COMO SE HA VISTO EN LAS TOMAS DEL FILTRO COMPLEJO ADAPTADO (400). LAS TOMAS QUE TIENEN COEFICIENTES DE AMPLITUD POR DEBAJO DE UN UMBRAL PREDETERMINADO, SON AJUSTADAS A CERO PARA PRODUCIR UN CIR MODIFICADO ESTIMADO. EL CIR MODIFICADO ESTIMADO QUE HA TENIDO LOS EFECTOS DE RUIDO VIRTUALMENTE ELIMINADOS, ES ENTONCES USADO PARA CONSTRUIR EL FILTRO COMPLEJO ADAPTADO (400) Y TAMBIEN ES USADO COMO ENTRADA AL MLSE (405) PARA PRODUCIR UNA SEÑAL DE DATOS MEJOR ECUALIZADA.
ES92903693T 1990-12-20 1991-12-17 Aparato y metodo para la ecualizacion en un receptor de una señal alterada. Expired - Lifetime ES2131068T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/630,922 US5251233A (en) 1990-12-20 1990-12-20 Apparatus and method for equalizing a corrupted signal in a receiver
PCT/US1991/009479 WO1992011708A1 (en) 1990-12-20 1991-12-17 Apparatus and method for equalizing a corrupted signal in a receiver

Publications (1)

Publication Number Publication Date
ES2131068T3 true ES2131068T3 (es) 1999-07-16

Family

ID=24529123

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92903693T Expired - Lifetime ES2131068T3 (es) 1990-12-20 1991-12-17 Aparato y metodo para la ecualizacion en un receptor de una señal alterada.

Country Status (17)

Country Link
US (1) US5251233A (es)
EP (1) EP0563300B1 (es)
JP (1) JPH06506324A (es)
KR (1) KR970007362B1 (es)
CN (1) CN1035854C (es)
AR (1) AR247048A1 (es)
AU (1) AU657287B2 (es)
BR (1) BR9107237A (es)
CA (1) CA2097694A1 (es)
DE (1) DE69131167T2 (es)
ES (1) ES2131068T3 (es)
FI (1) FI106664B (es)
IL (1) IL100456A (es)
MX (1) MX9102720A (es)
MY (1) MY107671A (es)
NZ (2) NZ241128A (es)
WO (1) WO1992011708A1 (es)

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Also Published As

Publication number Publication date
CN1035854C (zh) 1997-09-10
MX9102720A (es) 1992-06-01
CN1067344A (zh) 1992-12-23
KR970007362B1 (ko) 1997-05-07
AU657287B2 (en) 1995-03-09
FI932823A0 (fi) 1993-06-18
DE69131167D1 (de) 1999-05-27
NZ270872A (en) 1997-01-29
EP0563300B1 (en) 1999-04-21
KR930703750A (ko) 1993-11-30
IL100456A (en) 1995-03-30
FI932823A (fi) 1993-06-18
WO1992011708A1 (en) 1992-07-09
CA2097694A1 (en) 1992-06-21
AU9165491A (en) 1992-07-22
JPH06506324A (ja) 1994-07-14
NZ241128A (en) 1997-01-29
IL100456A0 (en) 1992-09-06
AR247048A1 (es) 1994-10-31
DE69131167T2 (de) 1999-11-11
FI106664B (fi) 2001-03-15
EP0563300A1 (en) 1993-10-06
EP0563300A4 (en) 1993-12-22
MY107671A (en) 1996-05-30
BR9107237A (pt) 1994-04-05
US5251233A (en) 1993-10-05

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