DE3873820D1 - Verfahren zur demodulation von digital modulierten signalen und vorrichtung zur durchfuehrung des verfahrens. - Google Patents

Verfahren zur demodulation von digital modulierten signalen und vorrichtung zur durchfuehrung des verfahrens.

Info

Publication number
DE3873820D1
DE3873820D1 DE8888108043T DE3873820T DE3873820D1 DE 3873820 D1 DE3873820 D1 DE 3873820D1 DE 8888108043 T DE8888108043 T DE 8888108043T DE 3873820 T DE3873820 T DE 3873820T DE 3873820 D1 DE3873820 D1 DE 3873820D1
Authority
DE
Germany
Prior art keywords
implementing
modulated signals
digitally modulated
demodulating
demodulating digitally
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 - Fee Related
Application number
DE8888108043T
Other languages
English (en)
Other versions
DE3873820T2 (de
Inventor
Sylvain Fontanes
Patrice Birot
Andre Marguinaud
Thierry Quignon
Brigitte Romann
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.)
Alcatel Espace Industries SA
Original Assignee
Alcatel Espace Industries 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 Alcatel Espace Industries SA filed Critical Alcatel Espace Industries SA
Application granted granted Critical
Publication of DE3873820D1 publication Critical patent/DE3873820D1/de
Publication of DE3873820T2 publication Critical patent/DE3873820T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2338—Demodulator circuits; Receiver circuits using non-coherent demodulation using sampling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE8888108043T 1987-05-21 1988-05-19 Verfahren zur demodulation von digital modulierten signalen und vorrichtung zur durchfuehrung des verfahrens. Expired - Fee Related DE3873820T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8707129A FR2615675B1 (fr) 1987-05-21 1987-05-21 Procede de demodulation de signaux modules numeriquement et dispositif de mise en oeuvre d'un tel procede

Publications (2)

Publication Number Publication Date
DE3873820D1 true DE3873820D1 (de) 1992-09-24
DE3873820T2 DE3873820T2 (de) 1993-02-04

Family

ID=9351292

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888108043T Expired - Fee Related DE3873820T2 (de) 1987-05-21 1988-05-19 Verfahren zur demodulation von digital modulierten signalen und vorrichtung zur durchfuehrung des verfahrens.

Country Status (5)

Country Link
US (1) US4885756A (de)
EP (1) EP0291979B1 (de)
CA (1) CA1298627C (de)
DE (1) DE3873820T2 (de)
FR (1) FR2615675B1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287067A (en) * 1991-10-07 1994-02-15 Nippon Telegraph And Telephone Corporation Method and apparatus for demodulation with adaptive phase control in quasi-coherent detection
JP2888398B2 (ja) * 1992-12-10 1999-05-10 株式会社日立製作所 ディジタル情報再生装置
JPH06343085A (ja) * 1993-04-07 1994-12-13 Hitachi Ltd 信号復調復号装置および信号復調復号方法
FR2711028B1 (fr) * 1993-10-08 1995-11-17 Thomson Csf Procédé et dispositif de démodulation cohérente par blocs de signaux complexes modulés en phase.
US5960040A (en) * 1996-12-05 1999-09-28 Raytheon Company Communication signal processors and methods
CN1211361A (zh) * 1996-12-18 1999-03-17 皇家菲利浦电子有限公司 具有一个简化符号检测器的传输系统和记录系统
US6075826A (en) * 1998-05-13 2000-06-13 Comsat Corporation Method and apparatus for obtaining initial carrier and symbol phase estimates for use in synchronizing transmitting data
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
FR2786341B1 (fr) * 1998-11-24 2001-06-08 Thomson Csf Demodulateur numerique i/q en technologie de circuit integre
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US6639953B1 (en) * 2000-02-22 2003-10-28 Trw Inc. Apparatus and method for efficient binary phase shift key data demodulation
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
FR2808951B1 (fr) * 2000-05-10 2002-09-27 Jean Pierre Dehaene Procede de modulation-demodulation a 4 etats de phase utilisant le poinconnage de certains symboles pour ameliorer l'acquisition de la synchronisation phase- frequence a faible rapport signal a bruit
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
JP5003147B2 (ja) * 2006-12-26 2012-08-15 ソニー株式会社 信号処理装置および信号処理方法、並びにプログラム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457005A (en) * 1981-12-07 1984-06-26 Motorola, Inc. Digital coherent PSK demodulator and detector
US4516079A (en) * 1983-02-09 1985-05-07 Westinghouse Electric Corp. Coherent phase shift keyed demodulator for power line communication systems
FR2572603B1 (fr) * 1984-10-30 1989-11-17 Lignes Telegraph Telephon Demodulateur differentiel de signaux electriques a plusieurs etats d'amplitude et de phase pour equipements de transmission de donnees
US4740997A (en) * 1985-08-05 1988-04-26 Hayes Microcomputer Products, Inc. Band clock offset phase locked loop
FR2591048B1 (fr) * 1985-11-29 1988-01-15 Trt Telecom Radio Electr Discriminateur numerique de frequence, et application a un signal composite vor

Also Published As

Publication number Publication date
DE3873820T2 (de) 1993-02-04
EP0291979A1 (de) 1988-11-23
US4885756A (en) 1989-12-05
FR2615675A1 (fr) 1988-11-25
FR2615675B1 (fr) 1989-06-30
EP0291979B1 (de) 1992-08-19
CA1298627C (fr) 1992-04-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee