NO943508L - Spektralfordelt overföring av digitalsignaler ved direktesekvensering - Google Patents

Spektralfordelt overföring av digitalsignaler ved direktesekvensering

Info

Publication number
NO943508L
NO943508L NO943508A NO943508A NO943508L NO 943508 L NO943508 L NO 943508L NO 943508 A NO943508 A NO 943508A NO 943508 A NO943508 A NO 943508A NO 943508 L NO943508 L NO 943508L
Authority
NO
Norway
Prior art keywords
digital signals
spectral distribution
coding
direct sequencing
binary value
Prior art date
Application number
NO943508A
Other languages
English (en)
Other versions
NO943508D0 (no
Inventor
Philippe Delarue
Guy Le Garrec
Thierry Jean Lucidarme
Original Assignee
Const De Moteurs D Soc Nat D E
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 Const De Moteurs D Soc Nat D E filed Critical Const De Moteurs D Soc Nat D E
Publication of NO943508D0 publication Critical patent/NO943508D0/no
Publication of NO943508L publication Critical patent/NO943508L/no

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Fremgangsmåte og apparat for kodet digitalsignaloverføring. Apparatet har en senderdel hvor en kodetaktkrets for | en pseudotilfeldig spredekode synkroni- j seres med en taktgiver for signalfølger i form av informasjonssekvenser, idet : synkroniseringen utføres for en kode- posisjon hvis innhold tilsvarer en for- håndsbestemt binærverdi. Deretter ut- føres en ytterligere og "transparent" koding av en bestemt enhetssekvens på en bit hver gang spredekoden tilsvarer en forhåndsbestemt binær verdi. Den ytter- '* ligere koding tillater koherent demodu- lasjon av innkommende digitalsignaler uten at det dannes faseflertydighet.
NO943508A 1993-09-22 1994-09-21 Spektralfordelt overföring av digitalsignaler ved direktesekvensering NO943508L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9311260A FR2710482B1 (fr) 1993-09-22 1993-09-22 Procédé et dispositif de transmission numérique à étalement de spectre par séquence directe.

Publications (2)

Publication Number Publication Date
NO943508D0 NO943508D0 (no) 1994-09-21
NO943508L true NO943508L (no) 1995-03-23

Family

ID=9451099

Family Applications (1)

Application Number Title Priority Date Filing Date
NO943508A NO943508L (no) 1993-09-22 1994-09-21 Spektralfordelt overföring av digitalsignaler ved direktesekvensering

Country Status (3)

Country Link
EP (1) EP0644663A1 (no)
FR (1) FR2710482B1 (no)
NO (1) NO943508L (no)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5022047A (en) * 1989-08-07 1991-06-04 Omnipoint Data Corporation Spread spectrum correlator

Also Published As

Publication number Publication date
NO943508D0 (no) 1994-09-21
FR2710482B1 (fr) 1995-10-20
EP0644663A1 (fr) 1995-03-22
FR2710482A1 (fr) 1995-03-31

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