DE3465680D1 - Carrier and clocking frequency recovery for digital transmission systems with phase or amplitude modulation and coherent demodulation - Google Patents

Carrier and clocking frequency recovery for digital transmission systems with phase or amplitude modulation and coherent demodulation

Info

Publication number
DE3465680D1
DE3465680D1 DE8484400604T DE3465680T DE3465680D1 DE 3465680 D1 DE3465680 D1 DE 3465680D1 DE 8484400604 T DE8484400604 T DE 8484400604T DE 3465680 T DE3465680 T DE 3465680T DE 3465680 D1 DE3465680 D1 DE 3465680D1
Authority
DE
Germany
Prior art keywords
carrier
phase
amplitude modulation
transmission systems
digital transmission
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
Application number
DE8484400604T
Other languages
English (en)
Inventor
Jean-Pierre Prigent
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.)
PRIGENT JEAN PIERRE
Original Assignee
PRIGENT JEAN PIERRE
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 PRIGENT JEAN PIERRE filed Critical PRIGENT JEAN PIERRE
Application granted granted Critical
Publication of DE3465680D1 publication Critical patent/DE3465680D1/de
Expired 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
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • H04L27/2276—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H04L27/3836—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using the received modulated signal or the received IF signal, e.g. by detecting a pilot or by frequency multiplication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE8484400604T 1983-04-12 1984-03-26 Carrier and clocking frequency recovery for digital transmission systems with phase or amplitude modulation and coherent demodulation Expired DE3465680D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8305942A FR2544571B1 (fr) 1983-04-12 1983-04-12 Recuperation des frequences de porteuse et de rythme pour les systemes de transmission numerique a modulation a etats de phase ou d'amplitude et a demodulation coherente

Publications (1)

Publication Number Publication Date
DE3465680D1 true DE3465680D1 (en) 1987-10-01

Family

ID=9287758

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484400604T Expired DE3465680D1 (en) 1983-04-12 1984-03-26 Carrier and clocking frequency recovery for digital transmission systems with phase or amplitude modulation and coherent demodulation

Country Status (5)

Country Link
US (1) US4592071A (de)
EP (1) EP0123587B1 (de)
CA (1) CA1220526A (de)
DE (1) DE3465680D1 (de)
FR (1) FR2544571B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0208425A3 (de) * 1985-06-13 1988-01-13 Devon County Council Übertragung per Fernsehsignalnebenträger
KR930007937B1 (ko) * 1988-03-28 1993-08-21 마쯔시다덴기산교 가부시기가이샤 디지틀신호 자기기록 재생장치
US5109532A (en) * 1990-01-30 1992-04-28 General Instrument Corporation Elimination of phase noise and drift incident to up and down conversion in a broadcast communication system
FR2681994B1 (fr) * 1991-09-26 1994-09-30 Alcatel Telspace Dispositif de transmission numerique comportant un recepteur a demodulation coherente realisee directement en hyperfrequence.
US5392147A (en) * 1991-10-21 1995-02-21 Nec Corporation Optical trunk transmission system and an optical repeater circuit
FR2724276A1 (fr) * 1994-09-07 1996-03-08 Valeo Electronique Dispositif de recuperation de rythme, recepteur et dispositif de transmission le comportant et signal radiofrequence mis en oeuvre par ceux-ci
DE19634740A1 (de) * 1996-08-28 1998-03-05 Sel Alcatel Ag Funkfeststation mit abstimmbarem Oszillator und Verfahren zum Abstimmen des Oszillators
FR3085568B1 (fr) * 2018-08-31 2020-08-07 Zodiac Data Systems Procede de datation de signaux de telemesure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1591054B2 (de) * 1966-08-05 1976-12-16 Communications Satellite Corp., Washington, D.C Nachrichtenempfaenger fuer frequenzmodulierte signale
FR2226790B1 (de) * 1973-04-19 1977-08-19 Lannionnais Electronique
US3828138A (en) * 1973-05-10 1974-08-06 Nasa Coherent receiver employing nonlinear coherence detection for carrier tracking
FR2441298A1 (fr) * 1978-11-07 1980-06-06 Cit Alcatel Dispositif de recuperation de rythme
US4328587A (en) * 1979-02-19 1982-05-04 Kokusai Denshin Denwa Kabushiki Kaisha Phase slip detector and systems employing the detector
US4466108A (en) * 1981-10-06 1984-08-14 Communications Satellite Corporation TDMA/PSK Carrier synchronization without preamble

Also Published As

Publication number Publication date
US4592071A (en) 1986-05-27
EP0123587A1 (de) 1984-10-31
CA1220526A (en) 1987-04-14
FR2544571B1 (fr) 1985-06-14
FR2544571A1 (fr) 1984-10-19
EP0123587B1 (de) 1987-08-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee