FR2455403A1 - Circuit de compensation de bruits de phase pour systemes de transmission de donnees - Google Patents

Circuit de compensation de bruits de phase pour systemes de transmission de donnees

Info

Publication number
FR2455403A1
FR2455403A1 FR7910806A FR7910806A FR2455403A1 FR 2455403 A1 FR2455403 A1 FR 2455403A1 FR 7910806 A FR7910806 A FR 7910806A FR 7910806 A FR7910806 A FR 7910806A FR 2455403 A1 FR2455403 A1 FR 2455403A1
Authority
FR
France
Prior art keywords
phase
complex
self
corrects
transmission system
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.)
Granted
Application number
FR7910806A
Other languages
English (en)
Other versions
FR2455403B1 (fr
Inventor
Michel Levy
Christian Poinas
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7910806A priority Critical patent/FR2455403A1/fr
Publication of FR2455403A1 publication Critical patent/FR2455403A1/fr
Application granted granted Critical
Publication of FR2455403B1 publication Critical patent/FR2455403B1/fr
Granted 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
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
    • H04L25/03133—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a non-recursive structure
    • H04L25/0314—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a non-recursive structure using fractionally spaced delay lines or combinations of fractionally integrally spaced taps
    • 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
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

LA PRESENTE INVENTION CONCERNE LES TRANSMISSIONS DE DONNEES ET PLUS PARTICULIEREMENT L'ELIMINATION DES DISTORSIONS QUI SONT A L'ORIGINE DES ERREURS COMMISES EN RECEPTION SUR L'ESTIMATION DES SYMBOLES EMIS ET QUI LIMITENT LE DEBIT BINAIRE. ELLE A POUR OBJET UN CIRCUIT DE COMPENSATION DE BRUITS DE PHASE POUR UN CIRCUIT DE TRANSMISSION SYNCHRONE DE DONNEES AYANT EN RECEPTION UN CIRCUIT DE DECISION 34 FOURNISSANT UNE ESTIMATION DES SYMBOLES EMIS ET UN EGALISEUR LINEAIRE COMPLEXE AUTOADAPTATIF LONG 31 ASSURANT LA COMPENSATION DES DISTORSIONS LINEAIRES D'AMPLITUDE ET DE TEMPS DE PROPAGATION DE GROUPE DUES AU CANAL EMPRUNTE PAR LA TRANSMISSION. CE CIRCUIT DE COMPENSATION DE BRUITS DE PHASE COMPORTE, INTERCALE ENTRE L'EGALISEUR LINEAIRE COMPLEXE AUTOADAPTATIF LONG 31 ET LE CIRCUIT DE DECISION 34, UN DEPHASEUR COMPLEXE AUTOADAPTATIF, 32 MUNI D'UN ASSERVISSEMENT DE PHASE DU DEUXIEME ORDRE AU MOINS ET, DE MANIERE PREFERENTIELLE, UN EGALISEUR LINEAIRE COMPLEXE AUTOADAPTATIF COURT 33. CE SYSTEME DE COMPENSATION DE BRUITS S'UTILISE AVANTAGEUSEMENT DANS LES SYSTEMES DE TRANSMISSION DE DONNEES A GRAND DEBIT UTILISANT UNE MODULATION D'AMPLITUDE A DEUX PORTEUSES EN QUADRATURE.
FR7910806A 1979-04-27 1979-04-27 Circuit de compensation de bruits de phase pour systemes de transmission de donnees Granted FR2455403A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7910806A FR2455403A1 (fr) 1979-04-27 1979-04-27 Circuit de compensation de bruits de phase pour systemes de transmission de donnees

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7910806A FR2455403A1 (fr) 1979-04-27 1979-04-27 Circuit de compensation de bruits de phase pour systemes de transmission de donnees

Publications (2)

Publication Number Publication Date
FR2455403A1 true FR2455403A1 (fr) 1980-11-21
FR2455403B1 FR2455403B1 (fr) 1982-02-05

Family

ID=9224860

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7910806A Granted FR2455403A1 (fr) 1979-04-27 1979-04-27 Circuit de compensation de bruits de phase pour systemes de transmission de donnees

Country Status (1)

Country Link
FR (1) FR2455403A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002819A1 (fr) * 1983-01-12 1984-07-19 Ncr Co Circuit de reduction d'erreurs dans un recepteur de donnees
CN113572453A (zh) * 2021-09-23 2021-10-29 广州慧智微电子有限公司 一种多相位移相器和多相位移相方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971996A (en) * 1973-01-18 1976-07-27 Hycom Incorporated Phase tracking network
FR2354003A1 (fr) * 1976-06-04 1977-12-30 Anvar Perfectionnements aux systemes de transmission de donnees
FR2408949A2 (en) * 1976-06-04 1979-06-08 Anvar Data transmission correction circuit - has two multi-coefficient stages with first stage controlled from second stage output

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971996A (en) * 1973-01-18 1976-07-27 Hycom Incorporated Phase tracking network
FR2354003A1 (fr) * 1976-06-04 1977-12-30 Anvar Perfectionnements aux systemes de transmission de donnees
FR2408949A2 (en) * 1976-06-04 1979-06-08 Anvar Data transmission correction circuit - has two multi-coefficient stages with first stage controlled from second stage output

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/78 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002819A1 (fr) * 1983-01-12 1984-07-19 Ncr Co Circuit de reduction d'erreurs dans un recepteur de donnees
CN113572453A (zh) * 2021-09-23 2021-10-29 广州慧智微电子有限公司 一种多相位移相器和多相位移相方法

Also Published As

Publication number Publication date
FR2455403B1 (fr) 1982-02-05

Similar Documents

Publication Publication Date Title
SG49335A1 (en) Digital demodulator with frequency and timing control
CA2019659A1 (fr) Recepteur de systeme non lineaire de transmission de donnees
KR890001302A (ko) 데이타 송수신 시스템
KR910016163A (ko) 두개이상의 안테나를 갖는 비터비 수신기의 페이딩의 영향을 감소시키는 방법
MX9605977A (es) Sistema de transporte de alta velocidad.
US3701948A (en) System for phase locking on a virtual carrier
US5081652A (en) Offset correction
CA2037535C (fr) Systeme de demodulation pouvant egaliser les signaux recus avec precision au moyen de codes de correction d'erreurs
KR920003758A (ko) 수신기 시스템
DE69431893D1 (de) Übertragungssystem mit Empfänger mit verbesserten Taktmitteln
SE7614542L (sv) Fasdiskriminator i en mottagare for en dataoverforingsanleggning
GB2036512A (en) Receivers for single side-band reduced carrier amplitude-modulation data transmission systems
MY117729A (en) Digital variable symbol timing recovery system for qam
FR2455403A1 (fr) Circuit de compensation de bruits de phase pour systemes de transmission de donnees
IE800836L (en) Reducing phase noise in transmission system
KR870010533A (ko) 디지탈신호기의 전송장치
US4520492A (en) Method for determining the optimum sampling times for a QPSK or QAM received signal
JPH10164152A (ja) Ｆｓｋ受信機用中心誤差検出回路
GB1478709A (en) Synchronising a digital data receiver
EP1340348B1 (fr) Procede et appareil destines a ameliorer la qualite de synchronisation de recepteur de connexion modem par modulation qam ou cap
FI58240B (fi) Kopplingsanordning foer fasreglering av klockpulssignal
JPH06261088A (ja) 復調器オフセット除去回路
EP0029688B1 (fr) Systèmes de transmission pour données numériques
US4207528A (en) Timing-phase control system for duobinary transmission
JPS5840386B2 (ja) タイミングフクゲン オヨビ セイギヨソウチ

Legal Events

Date Code Title Description
ST Notification of lapse