FR2419614A1 - Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude - Google Patents

Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude

Info

Publication number
FR2419614A1
FR2419614A1 FR7806954A FR7806954A FR2419614A1 FR 2419614 A1 FR2419614 A1 FR 2419614A1 FR 7806954 A FR7806954 A FR 7806954A FR 7806954 A FR7806954 A FR 7806954A FR 2419614 A1 FR2419614 A1 FR 2419614A1
Authority
FR
France
Prior art keywords
synchronous digital
amplitude modulation
digital signal
signal transmitted
carrier
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
FR7806954A
Other languages
English (en)
Other versions
FR2419614B1 (fr
Inventor
Michel Lemoussu
Claude Cardot
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 FR7806954A priority Critical patent/FR2419614A1/fr
Priority to BE1/9282A priority patent/BE874263A/fr
Priority to GB7907682A priority patent/GB2017436B/en
Priority to DE19792908589 priority patent/DE2908589A1/de
Priority to NL7901891A priority patent/NL7901891A/xx
Priority to CA323,009A priority patent/CA1129506A/fr
Priority to LU81020A priority patent/LU81020A1/fr
Priority to JP2681779A priority patent/JPS54127266A/ja
Priority to IT6750979A priority patent/IT1165639B/it
Priority to US06/019,246 priority patent/US4253189A/en
Priority to IE60179A priority patent/IE48091B1/en
Publication of FR2419614A1 publication Critical patent/FR2419614A1/fr
Application granted granted Critical
Publication of FR2419614B1 publication Critical patent/FR2419614B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H04L27/066—Carrier recovery circuits

Landscapes

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

Abstract

La présente invention concerne les transmissions numériques synchrones. Elle est relative à la récupération de la porteuse non nécessairement émise d'un signal numérique synchrone transmis en modulation d'amplitude. Elle a pour objet un circuit comportant un oscillateur à fréquence et phase réglables engendrant une porteuse locale, un circuit de démodulation recevant en entrée la porteuse locale éventuellement déphasée et le signal numérique synchrone transmis en modulation d'amplitude, et un asservissement contrôlant la phase et la fréquence de l'oscillateur à partir des signaux délivrés par le circuit de démodulation et comportant au moins un autocorrélateur à coïncidence de signes. Elle s'applique avantageusement mais non exclusivement à la démodulation des signaux numériques synchrones codés en bipolaire et transmis par modulation d'amplitude à bande latérale unique.
FR7806954A 1978-03-10 1978-03-10 Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude Granted FR2419614A1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FR7806954A FR2419614A1 (fr) 1978-03-10 1978-03-10 Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude
BE1/9282A BE874263A (fr) 1978-03-10 1979-02-19 Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude
DE19792908589 DE2908589A1 (de) 1978-03-10 1979-03-05 Schaltungsanordnung zur traegerfrequenzrueckgewinnung aus einem synchronen amplitudenmodulierten digitalsignal
GB7907682A GB2017436B (en) 1978-03-10 1979-03-05 Circuit for recovering the carrier of an amplitude modulated synchronous digital signal
CA323,009A CA1129506A (fr) 1978-03-10 1979-03-08 Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude
LU81020A LU81020A1 (fr) 1978-03-10 1979-03-08 Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude
NL7901891A NL7901891A (nl) 1978-03-10 1979-03-08 Keten voor het terugkrijgen van de draaggolf van een synchroon numeriek signaal dat overgebracht is door amplitudemodulatie.
JP2681779A JPS54127266A (en) 1978-03-10 1979-03-09 Amplitude modulation synchronous digital signal carrier regenerative circuit
IT6750979A IT1165639B (it) 1978-03-10 1979-03-09 Circuito ricuperatore della portante di un segnale numerico sincrono trasmesso mediante modulazione di ampiezza
US06/019,246 US4253189A (en) 1978-03-10 1979-03-09 Circuit for recovering the carrier of an amplitude modulated synchronous digital signal
IE60179A IE48091B1 (en) 1978-03-10 1979-08-08 A circuit for recovering the carrier of an amplitude modulated synchronous digital signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7806954A FR2419614A1 (fr) 1978-03-10 1978-03-10 Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude
US06/019,246 US4253189A (en) 1978-03-10 1979-03-09 Circuit for recovering the carrier of an amplitude modulated synchronous digital signal

Publications (2)

Publication Number Publication Date
FR2419614A1 true FR2419614A1 (fr) 1979-10-05
FR2419614B1 FR2419614B1 (fr) 1983-02-04

Family

ID=26220478

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7806954A Granted FR2419614A1 (fr) 1978-03-10 1978-03-10 Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude

Country Status (9)

Country Link
US (1) US4253189A (fr)
JP (1) JPS54127266A (fr)
BE (1) BE874263A (fr)
CA (1) CA1129506A (fr)
DE (1) DE2908589A1 (fr)
FR (1) FR2419614A1 (fr)
GB (1) GB2017436B (fr)
LU (1) LU81020A1 (fr)
NL (1) NL7901891A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026372A1 (fr) * 1979-09-19 1981-04-08 Alcatel Circuit d'asservissement de la phase d'un oscillateur local pour récepteur de signaux de données transmis par une modulation d'amplitude en bande latérale unique

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS596101B2 (ja) * 1979-12-18 1984-02-09 富士ゼロックス株式会社 搬送波再生回路
US4416017A (en) * 1981-01-05 1983-11-15 Motorola, Inc. Apparatus and method for attenuating interfering signals
US4445223A (en) * 1981-01-05 1984-04-24 Motorola, Inc. Apparatus and method for determining the presence and frequency of a periodic signal
FR2510331A1 (fr) * 1981-07-23 1983-01-28 Leclert Alain Circuit de regeneration d'une onde porteuse
US4561067A (en) * 1982-06-23 1985-12-24 British Telecommunications Multi-channel cross-talk interference reduction circuit using modulation-multiplying-demodulation correlator
US4510611A (en) * 1982-11-19 1985-04-09 General Electric Company Transceiver circuit for interfacing between a power line communication system and a data processor
GB8300076D0 (en) * 1983-01-04 2010-03-10 Secr Defence Electronic detector circuit
IT1212806B (it) * 1983-12-30 1989-11-30 Ates Componenti Elettron Demodulatore sincrono per segnali modulati in ampiezza.
FR2562351B1 (fr) * 1984-03-30 1986-06-20 Labo Electronique Physique Comparateur de phase a fonctionnement linearise et boucle a verrouillage de phase comprenant un tel comparateur de phase
US4680778A (en) * 1985-10-02 1987-07-14 Motorola, Inc. Fast acquisition circuit for synchronous digital receiver operating in wideband noise
US4726043A (en) * 1986-11-28 1988-02-16 American Telephone And Telegraph Company Data decision-directed timing and carrier recovery circuits
AU594621B2 (en) * 1987-06-23 1990-03-08 Nec Corporation Carrier-to-noise detector for digital transmission systems
FR2621188B1 (fr) * 1987-09-25 1989-12-29 Labo Electronique Physique Circuit de recuperation de l'onde porteuse de systemes de transmissions numeriques
GB2237480A (en) * 1989-10-06 1991-05-01 Secr Defence Carrier regeneration
JP2513331B2 (ja) * 1989-11-10 1996-07-03 日本電気株式会社 搬送波再生器
DE4325713A1 (de) * 1993-07-30 1995-02-02 Siemens Ag Verfahren und Schaltungsanordnung zur Demodulation und Schwellenwertdiskrimination von getasteten CW-Signalen
GB2287144B (en) * 1994-02-23 1998-11-18 Motorola Israel Ltd A radio device and a single-frequency radio transponder
DE4431522A1 (de) * 1994-09-03 1996-03-07 Philips Patentverwaltung Verfahren und Schaltungsanordnung zum Demodulieren eines digital amplitudenmodulierten Trägersignals
US5675284A (en) * 1996-05-13 1997-10-07 Zenith Electronics Corporation Frequency lock indicator for FPLL demodulated signal having a pilot
JP2910695B2 (ja) * 1996-08-30 1999-06-23 日本電気株式会社 コスタスループ搬送波再生回路
US6707863B1 (en) 1999-05-04 2004-03-16 Northrop Grumman Corporation Baseband signal carrier recovery of a suppressed carrier modulation signal
JP2003008354A (ja) * 2001-06-26 2003-01-10 Mitsubishi Electric Corp Ａｍ復調器
JP4024069B2 (ja) * 2002-04-05 2007-12-19 株式会社ルネサステクノロジ Ａｍ復調回路
CN100418366C (zh) * 2003-05-05 2008-09-10 Nxp股份有限公司 基于载波恢复的解调

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860871A (en) * 1972-06-09 1975-01-14 Fujitsu Ltd Phase control system for demodulation carrier in carrier band multilevel signal transmission
US3984778A (en) * 1974-11-13 1976-10-05 Rixon Inc. Carrier recovery scheme for a SSB-SC signal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2049059C3 (de) * 1970-10-06 1978-11-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Ausregelung von Phasenfehlern beim Empfang phasengetasteter Signale
LU68026A1 (fr) * 1972-07-19 1974-01-21
US3806815A (en) * 1973-03-06 1974-04-23 Nasa Decision feedback loop for tracking a polyphase modulated carrier
FR2226778B1 (fr) * 1973-04-20 1976-05-28 Lannionnais Electronique
FR2241162B1 (fr) * 1973-08-16 1976-09-17 Cit Alcatel
DE2354718C3 (de) * 1973-11-02 1981-12-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Demodulationsverfahren für phasenumgetastete Schwingungen und Schaltungsanordnung zur Durchführung des Verfahrens
US3993956A (en) * 1975-11-03 1976-11-23 Motorola, Inc. Digital detection system for differential phase shift keyed signals
FR2368184A1 (fr) * 1976-10-18 1978-05-12 Ibm France Systeme de synchronisation de porteuse pour demodulateur de phase coherent

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860871A (en) * 1972-06-09 1975-01-14 Fujitsu Ltd Phase control system for demodulation carrier in carrier band multilevel signal transmission
US3984778A (en) * 1974-11-13 1976-10-05 Rixon Inc. Carrier recovery scheme for a SSB-SC signal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV8089/76 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026372A1 (fr) * 1979-09-19 1981-04-08 Alcatel Circuit d'asservissement de la phase d'un oscillateur local pour récepteur de signaux de données transmis par une modulation d'amplitude en bande latérale unique

Also Published As

Publication number Publication date
FR2419614B1 (fr) 1983-02-04
GB2017436A (en) 1979-10-03
GB2017436B (en) 1982-04-07
NL7901891A (nl) 1979-09-12
JPS54127266A (en) 1979-10-03
BE874263A (fr) 1979-08-20
US4253189A (en) 1981-02-24
DE2908589A1 (de) 1979-09-20
CA1129506A (fr) 1982-08-10
LU81020A1 (fr) 1979-10-30

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