DE68919984D1 - Kohärente Demodulationsanordnung zur Verwendung in einer digitalen Funkübertragungsanlage. - Google Patents

Kohärente Demodulationsanordnung zur Verwendung in einer digitalen Funkübertragungsanlage.

Info

Publication number
DE68919984D1
DE68919984D1 DE68919984T DE68919984T DE68919984D1 DE 68919984 D1 DE68919984 D1 DE 68919984D1 DE 68919984 T DE68919984 T DE 68919984T DE 68919984 T DE68919984 T DE 68919984T DE 68919984 D1 DE68919984 D1 DE 68919984D1
Authority
DE
Germany
Prior art keywords
transmission system
radio transmission
digital radio
coherent demodulation
demodulation arrangement
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 - Lifetime
Application number
DE68919984T
Other languages
English (en)
Other versions
DE68919984T2 (de
Inventor
Motoya C O Nec Corpora Iwasaki
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE68919984D1 publication Critical patent/DE68919984D1/de
Publication of DE68919984T2 publication Critical patent/DE68919984T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
    • H03D1/2254—Homodyne or synchrodyne circuits using two quadrature channels and a phase locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Optical Communication System (AREA)
DE68919984T 1988-10-07 1989-10-09 Kohärente Demodulationsanordnung zur Verwendung in einer digitalen Funkübertragungsanlage. Expired - Lifetime DE68919984T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63253344A JPH0787476B2 (ja) 1988-10-07 1988-10-07 復調装置

Publications (2)

Publication Number Publication Date
DE68919984D1 true DE68919984D1 (de) 1995-01-26
DE68919984T2 DE68919984T2 (de) 1995-07-20

Family

ID=17250024

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68919984T Expired - Lifetime DE68919984T2 (de) 1988-10-07 1989-10-09 Kohärente Demodulationsanordnung zur Verwendung in einer digitalen Funkübertragungsanlage.

Country Status (5)

Country Link
US (1) US5128626A (de)
EP (1) EP0363226B1 (de)
JP (1) JPH0787476B2 (de)
AU (1) AU611327B2 (de)
DE (1) DE68919984T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69033596T2 (de) * 1989-10-23 2001-04-19 Nippon Telegraph & Telephone Referenzsignalgenerator und diesen enthaltenden digitaler Demodulator
JPH0456443A (ja) * 1990-06-26 1992-02-24 Sony Corp 局部発振装置
JPH0834486B2 (ja) * 1990-09-13 1996-03-29 松下電器産業株式会社 データ伝送装置
FR2672454B1 (fr) * 1991-01-31 1994-10-07 Alcatel Telspace Procede de demodulation coherente pour modulation a deplacement de phase et dispositif de mise en óoeuvre de ce procede.
JP3132068B2 (ja) * 1991-08-28 2001-02-05 日本電気株式会社 自動周波数制御装置
US5282227A (en) * 1992-05-21 1994-01-25 The Titan Corporation Communication signal detection and acquisition
JP2912791B2 (ja) * 1993-06-01 1999-06-28 松下電器産業株式会社 高周波受信装置
US5748049A (en) * 1994-11-23 1998-05-05 Anadigics, Inc. Multi-frequency local oscillators
SE504341C2 (sv) * 1995-05-22 1997-01-20 Ericsson Telefon Ab L M Förfarande och anordning vid fasmodulerade signaler
JP2000278341A (ja) * 1999-03-25 2000-10-06 Sanyo Electric Co Ltd 直交位相復調回路
DE10251309B3 (de) * 2002-11-04 2004-04-29 Advanced Micro Devices, Inc., Sunnyvale Kohärente und nichtkohärente Datenpfadaufspaltung in Empfängern für eine verbesserte Synchronisierung
US6778317B1 (en) * 2003-02-19 2004-08-17 The Aerospace Corporation Optical fiber quadrature demodulator
US20050100344A1 (en) * 2003-11-06 2005-05-12 Hogan Josh N. System for coherent optical communication

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371281A (en) * 1963-10-24 1968-02-27 Gen Electric Frequency modulation receiver combining frequency feedback and synchronous detection
JPS5586212A (en) * 1978-12-22 1980-06-28 Sony Corp Frequency tracking circuit
KR900000464B1 (ko) * 1984-10-05 1990-01-30 가부시기가이샤 히다찌세이사꾸쇼 복조 회로
EP0235264A4 (de) * 1985-09-03 1990-02-26 Motorola Inc Digitaler funkempfänger.
DE3889979T2 (de) * 1987-06-30 1994-12-01 Nippon Electric Co Phasenkontrollierter Demodulator für ein digitales Nachrichtensystem.

Also Published As

Publication number Publication date
EP0363226A2 (de) 1990-04-11
JPH02100545A (ja) 1990-04-12
EP0363226B1 (de) 1994-12-14
DE68919984T2 (de) 1995-07-20
US5128626A (en) 1992-07-07
JPH0787476B2 (ja) 1995-09-20
EP0363226A3 (de) 1991-03-27
AU4271589A (en) 1990-04-12
AU611327B2 (en) 1991-06-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition