DE69622974T2 - Digitale Schaltung für Differentialempfänger eines Direktsequenzspreizspektrumsignals - Google Patents

Digitale Schaltung für Differentialempfänger eines Direktsequenzspreizspektrumsignals

Info

Publication number
DE69622974T2
DE69622974T2 DE69622974T DE69622974T DE69622974T2 DE 69622974 T2 DE69622974 T2 DE 69622974T2 DE 69622974 T DE69622974 T DE 69622974T DE 69622974 T DE69622974 T DE 69622974T DE 69622974 T2 DE69622974 T2 DE 69622974T2
Authority
DE
Germany
Prior art keywords
spread spectrum
digital circuit
spectrum signal
direct sequence
sequence spread
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
DE69622974T
Other languages
English (en)
Other versions
DE69622974D1 (de
Inventor
Didier Lattard
Jean-Rene Lequepeys
Bernard Piaget
Norbert Daniele
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Application granted granted Critical
Publication of DE69622974D1 publication Critical patent/DE69622974D1/de
Publication of DE69622974T2 publication Critical patent/DE69622974T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
DE69622974T 1995-12-04 1996-12-02 Digitale Schaltung für Differentialempfänger eines Direktsequenzspreizspektrumsignals Expired - Lifetime DE69622974T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9514322A FR2742014B1 (fr) 1995-12-04 1995-12-04 Circuit numerique pour recepteur differentiel de signaux a etalement de spectre par sequence directe

Publications (2)

Publication Number Publication Date
DE69622974D1 DE69622974D1 (de) 2002-09-19
DE69622974T2 true DE69622974T2 (de) 2003-04-30

Family

ID=9485132

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69622974T Expired - Lifetime DE69622974T2 (de) 1995-12-04 1996-12-02 Digitale Schaltung für Differentialempfänger eines Direktsequenzspreizspektrumsignals

Country Status (5)

Country Link
US (1) US5799035A (de)
EP (1) EP0778677B1 (de)
CA (1) CA2191551A1 (de)
DE (1) DE69622974T2 (de)
FR (1) FR2742014B1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2770059B1 (fr) 1997-10-22 1999-11-19 Commissariat Energie Atomique Circuit pour transmissions numeriques a etalement de spectre par sequence directe avec generation d'un signal d'interferences
FR2770060B1 (fr) * 1997-10-22 1999-11-19 Commissariat Energie Atomique Recepteur differentiel a etalement de spectre par sequence directe avec moyens mixtes de formation d'un signal d'interferences
RU2200366C2 (ru) * 1998-07-20 2003-03-10 Самсунг Электроникс Ко., Лтд. Устройство для генерирования маски квазиортогонального кода в системе мобильной связи
FR2782587B1 (fr) * 1998-08-20 2000-09-22 France Telecom Procedes de communications numeriques amrc a repartition des symboles de reference
US6424642B1 (en) * 1998-12-31 2002-07-23 Texas Instruments Incorporated Estimation of doppler frequency through autocorrelation of pilot symbols
FR2791841B1 (fr) * 1999-04-02 2001-05-11 Commissariat Energie Atomique Module recepteur et recepteur compose de plusieurs modules montes en cascade
US6356580B1 (en) 1999-07-06 2002-03-12 The United States Of America As Represented By The Secretary Of The Air Force Direct sequence spread spectrum using non-antipodal phase shift keying
FR2796221B1 (fr) * 1999-07-07 2002-04-12 Sagem Demodulateur de phase analogique-numerique
DE60024890T2 (de) * 2000-09-13 2006-06-14 Nortel Networks Ltd Mehrbenutzerdetektion in einem cdma-kommunikationssystem
JP4278332B2 (ja) * 2001-06-29 2009-06-10 日本電信電話株式会社 光送信器および光伝送システム

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735374A1 (de) * 1987-10-19 1989-05-03 Siemens Ag Digitale korrelatorschaltung
US5253268A (en) * 1990-05-24 1993-10-12 Cylink Corporation Method and apparatus for the correlation of sample bits of spread spectrum radio signals
US5202901A (en) * 1991-05-21 1993-04-13 General Electric Company Digital discriminator for pulse shaped π/4 shifted differentially encoded quadrature phase shift keying
FR2696298B1 (fr) 1992-07-15 1994-10-28 Commissariat Energie Atomique Composant pour récepteur ou pour émetteur-récepteur différentiel de signaux à étalement de spectre par séquence directe et émetteur-récepteur correspondant.
US5311544A (en) * 1992-11-19 1994-05-10 Samsung Electronics Co., Ltd. Receiver of a direct sequence spread spectrum system
FR2712129B1 (fr) 1993-11-02 1995-12-01 Commissariat Energie Atomique Procédé de transmission à modulation de phase synchrone et à étalement de spectre par séquence directe, émetteur et récepteur correspondants et composant pour ce récepteur.
JP2655068B2 (ja) * 1993-12-30 1997-09-17 日本電気株式会社 スペクトラム拡散受信機
JPH07283762A (ja) * 1994-04-05 1995-10-27 Fujitsu General Ltd スペクトラム拡散通信装置

Also Published As

Publication number Publication date
DE69622974D1 (de) 2002-09-19
US5799035A (en) 1998-08-25
EP0778677B1 (de) 2002-08-14
CA2191551A1 (en) 1997-06-05
FR2742014B1 (fr) 1998-01-09
FR2742014A1 (fr) 1997-06-06
EP0778677A1 (de) 1997-06-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition