JPS52149015A - Synchronism detection system - Google Patents

Synchronism detection system

Info

Publication number
JPS52149015A
JPS52149015A JP6525976A JP6525976A JPS52149015A JP S52149015 A JPS52149015 A JP S52149015A JP 6525976 A JP6525976 A JP 6525976A JP 6525976 A JP6525976 A JP 6525976A JP S52149015 A JPS52149015 A JP S52149015A
Authority
JP
Japan
Prior art keywords
detection system
synchronism detection
signals
detecting
frequency bands
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
JP6525976A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5756824B2 (ru
Inventor
Noriaki Fujimura
Heihachi Morinaga
Masao Azuma
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6525976A priority Critical patent/JPS52149015A/ja
Publication of JPS52149015A publication Critical patent/JPS52149015A/ja
Publication of JPS5756824B2 publication Critical patent/JPS5756824B2/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
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
JP6525976A 1976-06-04 1976-06-04 Synchronism detection system Granted JPS52149015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6525976A JPS52149015A (en) 1976-06-04 1976-06-04 Synchronism detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6525976A JPS52149015A (en) 1976-06-04 1976-06-04 Synchronism detection system

Publications (2)

Publication Number Publication Date
JPS52149015A true JPS52149015A (en) 1977-12-10
JPS5756824B2 JPS5756824B2 (ru) 1982-12-01

Family

ID=13281728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6525976A Granted JPS52149015A (en) 1976-06-04 1976-06-04 Synchronism detection system

Country Status (1)

Country Link
JP (1) JPS52149015A (ru)

Also Published As

Publication number Publication date
JPS5756824B2 (ru) 1982-12-01

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