JPS56132047A - Digital modulator - Google Patents

Digital modulator

Info

Publication number
JPS56132047A
JPS56132047A JP2415781A JP2415781A JPS56132047A JP S56132047 A JPS56132047 A JP S56132047A JP 2415781 A JP2415781 A JP 2415781A JP 2415781 A JP2415781 A JP 2415781A JP S56132047 A JPS56132047 A JP S56132047A
Authority
JP
Japan
Prior art keywords
digital modulator
modulator
digital
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
JP2415781A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6331138B2 (2
Inventor
Kuroodo Kiyuruchino Jiyan
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 JPS56132047A publication Critical patent/JPS56132047A/ja
Publication of JPS6331138B2 publication Critical patent/JPS6331138B2/ja
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
    • H04L27/18—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP2415781A 1980-02-22 1981-02-20 Digital modulator Granted JPS56132047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8003976A FR2476947B1 (fr) 1980-02-22 1980-02-22 Dispositif de modulation numerique lineaire et emetteur hertzien comportant un tel dispositif

Publications (2)

Publication Number Publication Date
JPS56132047A true JPS56132047A (en) 1981-10-16
JPS6331138B2 JPS6331138B2 (2) 1988-06-22

Family

ID=9238882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2415781A Granted JPS56132047A (en) 1980-02-22 1981-02-20 Digital modulator

Country Status (3)

Country Link
EP (1) EP0034973A1 (2)
JP (1) JPS56132047A (2)
FR (1) FR2476947B1 (2)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543379B1 (fr) * 1983-03-25 1990-03-02 Thomson Csf Dispositif de demodulation directe en hyperfrequence et chaine de reception hyperfrequence comportant un tel dispositif
ATE35601T1 (de) * 1983-10-21 1988-07-15 Ant Nachrichtentech Digitales rf-direktmodulationsverfahren und schaltungsanordnung zu seiner durchfuehrung.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3002159A (en) * 1957-12-30 1961-09-26 Daystrom Inc Oscillator
US4216542A (en) * 1979-03-06 1980-08-05 Nasa Method and apparatus for quadriphase-shift-key and linear phase modulation

Also Published As

Publication number Publication date
FR2476947B1 (fr) 1987-06-26
EP0034973A1 (fr) 1981-09-02
FR2476947A1 (fr) 1981-08-28
JPS6331138B2 (2) 1988-06-22

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