JPS6347313B2 - - Google Patents

Info

Publication number
JPS6347313B2
JPS6347313B2 JP56212775A JP21277581A JPS6347313B2 JP S6347313 B2 JPS6347313 B2 JP S6347313B2 JP 56212775 A JP56212775 A JP 56212775A JP 21277581 A JP21277581 A JP 21277581A JP S6347313 B2 JPS6347313 B2 JP S6347313B2
Authority
JP
Japan
Prior art keywords
phase
circuit
output
phase detector
cos
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
JP56212775A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58114654A (ja
Inventor
Koichiro Takeda
Tokihiro Mishiro
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 JP56212775A priority Critical patent/JPS58114654A/ja
Priority to DE8282306960T priority patent/DE3272641D1/de
Priority to EP82306960A priority patent/EP0083236B1/en
Priority to US06/452,921 priority patent/US4475218A/en
Publication of JPS58114654A publication Critical patent/JPS58114654A/ja
Publication of JPS6347313B2 publication Critical patent/JPS6347313B2/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)
JP56212775A 1981-12-28 1981-12-28 基準搬送波再生回路 Granted JPS58114654A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56212775A JPS58114654A (ja) 1981-12-28 1981-12-28 基準搬送波再生回路
DE8282306960T DE3272641D1 (en) 1981-12-28 1982-12-24 Carrier recovery circuit
EP82306960A EP0083236B1 (en) 1981-12-28 1982-12-24 Carrier recovery circuit
US06/452,921 US4475218A (en) 1981-12-28 1982-12-27 Carrier-recovery circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56212775A JPS58114654A (ja) 1981-12-28 1981-12-28 基準搬送波再生回路

Publications (2)

Publication Number Publication Date
JPS58114654A JPS58114654A (ja) 1983-07-08
JPS6347313B2 true JPS6347313B2 (OSRAM) 1988-09-21

Family

ID=16628182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56212775A Granted JPS58114654A (ja) 1981-12-28 1981-12-28 基準搬送波再生回路

Country Status (4)

Country Link
US (1) US4475218A (OSRAM)
EP (1) EP0083236B1 (OSRAM)
JP (1) JPS58114654A (OSRAM)
DE (1) DE3272641D1 (OSRAM)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675883A (en) * 1984-10-04 1987-06-23 Siemens Aktiengesellschaft Arrangement for Carrier Recovery from Two Received Phase Shift Keyed Signals
US4847869A (en) * 1987-12-04 1989-07-11 Motorla, Inc. Rapid reference acquisition and phase error compensation for radio transmission of data
US4871974A (en) * 1988-12-23 1989-10-03 International Business Machines, Corp. Coherent phase shift keyed demodulator
US5042052A (en) * 1990-02-16 1991-08-20 Harris Corporation Carrier acquisition scheme for QAM and QPSK data
US5568521A (en) * 1993-09-16 1996-10-22 Unisys Corporation Phase lock indicator circuit for a high frequency recovery loop
US5579345A (en) * 1994-10-13 1996-11-26 Westinghouse Electric Corporation Carrier tracking loop for QPSK demodulator
DE19614979C2 (de) 1995-04-20 2001-05-17 Fujitsu Ltd Hochfrequenz-Sende-Empfangs-Vorrichtung zur Datenkommunikation
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1950540C3 (de) * 1968-10-07 1974-12-19 Fujitsu Ltd., Kawasaki, Kanagawa (Japan) Schaltungsanordnung zur Trägerrückgewinnung bei vierstufiger Phasenmodulation
US4109102A (en) * 1975-12-02 1978-08-22 Nippon Electric Company, Ltd. Phase synchronizing circuit
JPS5914939B2 (ja) * 1976-09-30 1984-04-06 日本電気株式会社 搬送波再生装置
FR2368184A1 (fr) * 1976-10-18 1978-05-12 Ibm France Systeme de synchronisation de porteuse pour demodulateur de phase coherent
JPS55132132A (en) * 1979-03-30 1980-10-14 Nec Corp Phase synchronizing circuit
US4344178A (en) * 1980-09-26 1982-08-10 Harris Corporation Costas loop QPSK demodulator

Also Published As

Publication number Publication date
JPS58114654A (ja) 1983-07-08
EP0083236A1 (en) 1983-07-06
EP0083236B1 (en) 1986-08-13
DE3272641D1 (en) 1986-09-18
US4475218A (en) 1984-10-02

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