NO308760B1 - Demodulasjonssystem - Google Patents

Demodulasjonssystem

Info

Publication number
NO308760B1
NO308760B1 NO932470A NO932470A NO308760B1 NO 308760 B1 NO308760 B1 NO 308760B1 NO 932470 A NO932470 A NO 932470A NO 932470 A NO932470 A NO 932470A NO 308760 B1 NO308760 B1 NO 308760B1
Authority
NO
Norway
Prior art keywords
demodulation
Prior art date
Application number
NO932470A
Other languages
English (en)
Norwegian (no)
Other versions
NO932470L (no
NO932470D0 (no
Inventor
Maurizio Bolla
Massimo Gelichi
Franco Guglielmi
Nino Leuratti
Original Assignee
Alcatel Italia
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 Alcatel Italia filed Critical Alcatel Italia
Publication of NO932470D0 publication Critical patent/NO932470D0/no
Publication of NO932470L publication Critical patent/NO932470L/no
Publication of NO308760B1 publication Critical patent/NO308760B1/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • H04L27/3872—Compensation for phase rotation in the demodulated signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
NO932470A 1992-07-27 1993-07-07 Demodulasjonssystem NO308760B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI921820A IT1259013B (it) 1992-07-27 1992-07-27 Sistema demodulatore completamente digitale per segnalazioni qam in collegamenti di piccola capacita'

Publications (3)

Publication Number Publication Date
NO932470D0 NO932470D0 (no) 1993-07-07
NO932470L NO932470L (no) 1994-01-28
NO308760B1 true NO308760B1 (no) 2000-10-23

Family

ID=11363750

Family Applications (1)

Application Number Title Priority Date Filing Date
NO932470A NO308760B1 (no) 1992-07-27 1993-07-07 Demodulasjonssystem

Country Status (6)

Country Link
US (1) US5412693A (fr)
EP (1) EP0583643B1 (fr)
JP (1) JPH06164666A (fr)
DE (1) DE69322330T2 (fr)
IT (1) IT1259013B (fr)
NO (1) NO308760B1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706714B1 (fr) * 1993-06-17 1995-07-21 Alcatel Telspace Système de réception d'un signal numérique à modulation de phase et d'amplitude.
US5557643A (en) * 1995-04-07 1996-09-17 Hughes Electronics Automatic frequency control system for GMSK-modulated signals
DE19522231A1 (de) * 1995-06-20 1997-01-09 Bosch Gmbh Robert Frequenz- und Phasenregelkreis
US5764113A (en) * 1997-01-10 1998-06-09 Harris Corporation Re-sampling circuit and modulator using same
SE9802109D0 (sv) * 1998-06-12 1998-06-12 Ericsson Telefon Ab L M One-bit correlator rake receiver
US6775334B1 (en) * 1998-11-03 2004-08-10 Broadcom Corporation Equalization and decision-directed loops with trellis demodulation in high definition TV
FR2786965B1 (fr) * 1998-12-04 2001-01-19 Thomson Multimedia Sa Procede de recuperation de porteuse de signal
CA2302004A1 (fr) * 2000-03-22 2001-09-22 Vajira N. S. Samarasooriya Methode et systeme de synchronisation de la frequence porteuse d'un recepteur a grande vitesse
DE10157864B4 (de) 2001-11-26 2006-08-10 Infineon Technologies Ag Quadratur-Amplituden-Modulations- (QAM) Empfänger
DE10249492A1 (de) 2002-10-24 2004-05-13 Micronas Gmbh Verfahren und Schaltung zur Erzeugung eines Hilfssymbols zum Einregeln eines QAM-Demodulators
US8723651B2 (en) 2010-07-01 2014-05-13 Intelleflex Corporation Variable rate preamble detection using ratiometric methods

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445079A1 (fr) * 1978-12-20 1980-07-18 Ibm France Procede et dispositif pour detecter une sequence pseudo-aleatoire de changements de phase de 0o et 180o de la porteuse dans un recepteur de donnees
FR2478914B1 (fr) * 1980-03-19 1986-01-31 Ibm France Procede et dispositif pour l'ajustement initial de l'horloge d'un recepteur de donnees synchrone
FR2525055A1 (fr) * 1982-04-09 1983-10-14 Trt Telecom Radio Electr Procede de correction de frequence de la porteuse locale dans le recepteur d'un systeme de transmission de donnees et recepteur utilisant ce procede
US4737728A (en) * 1986-02-28 1988-04-12 Hitachi, Ltd. Digitally processed demodulator for quadrature modulated signals
US4879728A (en) * 1989-01-31 1989-11-07 American Telephone And Telegraph Company, At&T Bell Laboratories DPSK carrier acquisition and tracking arrangement
DE69217140T2 (de) * 1991-08-07 1997-07-03 Toshiba Ave Kk QPSK-Demodulator mit automatischer Frequenznachregelung

Also Published As

Publication number Publication date
IT1259013B (it) 1996-03-11
NO932470L (no) 1994-01-28
DE69322330T2 (de) 1999-04-29
NO932470D0 (no) 1993-07-07
JPH06164666A (ja) 1994-06-10
ITMI921820A0 (it) 1992-07-27
EP0583643B1 (fr) 1998-12-02
DE69322330D1 (de) 1999-01-14
EP0583643A1 (fr) 1994-02-23
ITMI921820A1 (it) 1994-01-27
US5412693A (en) 1995-05-02

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