DE2721283C2 - Drahtloses digitales Informationsübertragungssystem für sehr kurze Wellen - Google Patents

Drahtloses digitales Informationsübertragungssystem für sehr kurze Wellen

Info

Publication number
DE2721283C2
DE2721283C2 DE19772721283 DE2721283A DE2721283C2 DE 2721283 C2 DE2721283 C2 DE 2721283C2 DE 19772721283 DE19772721283 DE 19772721283 DE 2721283 A DE2721283 A DE 2721283A DE 2721283 C2 DE2721283 C2 DE 2721283C2
Authority
DE
Germany
Prior art keywords
frequency
binary
signals
oscillator
demodulator
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
DE19772721283
Other languages
German (de)
English (en)
Other versions
DE2721283A1 (de
Inventor
Jean-Pierre Herblay Dehaene
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.)
Thales SA
Original Assignee
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of DE2721283A1 publication Critical patent/DE2721283A1/de
Application granted granted Critical
Publication of DE2721283C2 publication Critical patent/DE2721283C2/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
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/152—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements
    • H04L27/1525—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements using quadrature demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE19772721283 1976-05-11 1977-05-11 Drahtloses digitales Informationsübertragungssystem für sehr kurze Wellen Expired DE2721283C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7614160A FR2351547A1 (fr) 1976-05-11 1976-05-11 Systeme de transmission radioelectriques d'informations numeriques utilisant des ondes de tres faible longueur

Publications (2)

Publication Number Publication Date
DE2721283A1 DE2721283A1 (de) 1977-11-24
DE2721283C2 true DE2721283C2 (de) 1983-11-17

Family

ID=9172976

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772721283 Expired DE2721283C2 (de) 1976-05-11 1977-05-11 Drahtloses digitales Informationsübertragungssystem für sehr kurze Wellen

Country Status (2)

Country Link
DE (1) DE2721283C2 (enExample)
FR (1) FR2351547A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460050A1 (fr) * 1979-06-22 1981-01-16 Thomson Csf Systeme de transmission hyperfrequence de donnees numeriques
FR2477811B1 (fr) * 1980-03-05 1986-01-17 Thomson Csf Dispositif emetteur et dispositif recepteur pour la transmission de signaux numeriques

Also Published As

Publication number Publication date
FR2351547B1 (enExample) 1981-01-23
FR2351547A1 (fr) 1977-12-09
DE2721283A1 (de) 1977-11-24

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Legal Events

Date Code Title Description
OC Search report available
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee