NO943508L - Spektralfordelt overföring av digitalsignaler ved direktesekvensering - Google Patents
Spektralfordelt overföring av digitalsignaler ved direktesekvenseringInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5022047A (en) * | 1989-08-07 | 1991-06-04 | Omnipoint Data Corporation | Spread spectrum correlator |
-
1993
- 1993-09-22 FR FR9311260A patent/FR2710482B1/fr not_active Expired - Fee Related
-
1994
- 1994-09-21 EP EP94402093A patent/EP0644663A1/fr not_active Withdrawn
- 1994-09-21 NO NO943508A patent/NO943508L/no unknown
Also Published As
Publication number | Publication date |
---|---|
NO943508D0 (no) | 1994-09-21 |
FR2710482B1 (fr) | 1995-10-20 |
FR2710482A1 (fr) | 1995-03-31 |
EP0644663A1 (fr) | 1995-03-22 |
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