SE8306640D0 - RADIOANLEGGNINGAR - Google Patents

RADIOANLEGGNINGAR

Info

Publication number
SE8306640D0
SE8306640D0 SE8306640A SE8306640A SE8306640D0 SE 8306640 D0 SE8306640 D0 SE 8306640D0 SE 8306640 A SE8306640 A SE 8306640A SE 8306640 A SE8306640 A SE 8306640A SE 8306640 D0 SE8306640 D0 SE 8306640D0
Authority
SE
Sweden
Prior art keywords
frequency band
band
radioanleggningar
spectrum
image
Prior art date
Application number
SE8306640A
Other languages
Swedish (sv)
Other versions
SE8306640L (en
Inventor
M Naylor
D Brash
R Peile
Original Assignee
Racal Res Ltd
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 Racal Res Ltd filed Critical Racal Res Ltd
Publication of SE8306640D0 publication Critical patent/SE8306640D0/en
Publication of SE8306640L publication Critical patent/SE8306640L/en

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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • 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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7156—Arrangements for sequence synchronisation
    • H04B2001/71566—Tracking

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

A system for transmitting digital signals employs a continuously transmitted carrier frequency which is continuously changing in an analogue curve over a predetermined frequency band "B", such that the spectrum of the resultant transmission is spread over the frequency band and falls away sharply outside the band. <IMAGE>
SE8306640A 1982-12-08 1983-12-01 RADIOANLEGGNINGAR SE8306640L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08234991A GB2132451A (en) 1982-12-08 1982-12-08 Radio communications systems

Publications (2)

Publication Number Publication Date
SE8306640D0 true SE8306640D0 (en) 1983-12-01
SE8306640L SE8306640L (en) 1984-06-09

Family

ID=10534825

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8306640A SE8306640L (en) 1982-12-08 1983-12-01 RADIOANLEGGNINGAR

Country Status (2)

Country Link
GB (1) GB2132451A (en)
SE (1) SE8306640L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573594B1 (en) * 1984-11-16 1990-09-07 Thomson Csf SPECTRUM SPREAD TRANSMISSION METHOD IN A COMMUNICATIONS NETWORK, AND TRANSCEIVER STATION FOR IMPLEMENTING THE METHOD
FR2743231B1 (en) * 1995-12-29 1998-01-30 Thomson Multimedia Sa METHOD AND DEVICE FOR FREQUENCY DIVERSITY OF A SHF CARRIER

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2071461B (en) * 1980-02-14 1984-01-25 Standard Telephones Cables Ltd Telephone line feed
US4435821A (en) * 1981-03-24 1984-03-06 Nippon Electric Co., Ltd. Receiver in a frequency hopping communication system

Also Published As

Publication number Publication date
SE8306640L (en) 1984-06-09
GB2132451A (en) 1984-07-04

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