IN161261B - - Google Patents

Info

Publication number
IN161261B
IN161261B IN490/DEL/84A IN490DE1984A IN161261B IN 161261 B IN161261 B IN 161261B IN 490DE1984 A IN490DE1984 A IN 490DE1984A IN 161261 B IN161261 B IN 161261B
Authority
IN
India
Application number
IN490/DEL/84A
Other languages
English (en)
Inventor
Pierre Diederich
Peter Ash Matthew
Original Assignee
Decca 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 Decca Ltd filed Critical Decca Ltd
Publication of IN161261B publication Critical patent/IN161261B/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06Systems determining position data of a target
    • G01S13/08Systems for measuring distance only
    • G01S13/32Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/325Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of coded signals, e.g. P.S.K. signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0007Code type
    • H04J13/0022PN, e.g. Kronecker

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
IN490/DEL/84A 1983-07-08 1984-06-14 IN161261B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8318556 1983-07-08

Publications (1)

Publication Number Publication Date
IN161261B true IN161261B (xx) 1987-10-31

Family

ID=10545449

Family Applications (1)

Application Number Title Priority Date Filing Date
IN490/DEL/84A IN161261B (xx) 1983-07-08 1984-06-14

Country Status (3)

Country Link
EP (1) EP0131458A1 (xx)
JP (1) JPS6038673A (xx)
IN (1) IN161261B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59009801D1 (de) * 1990-08-28 1995-11-23 Itt Ind Gmbh Deutsche Fernbedienungseinrichtung mit einer Spreizcode-Übertragungsstrecke.
US5121407A (en) * 1990-09-27 1992-06-09 Pittway Corporation Spread spectrum communications system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519746A (en) * 1967-06-13 1970-07-07 Itt Means and method to obtain an impulse autocorrelation function
US4193030A (en) * 1968-08-01 1980-03-11 International Telephone And Telegraph Corporation Frequency hopping communication system
FR2102838A5 (xx) * 1970-08-25 1972-04-07 Geophysique Cie Gle
GB1326162A (en) * 1971-02-16 1973-08-08 Int Standard Electric Corp Pseudonoise radar system
GB1566442A (en) * 1977-07-29 1980-04-30 Marconi Co Ltd Data transmission systems
DE3129912C2 (de) * 1981-07-29 1987-11-12 Siemens AG, 1000 Berlin und 8000 München Hochfrequenz-Funksender für pseudozufällig phasenmodulierte Signale

Also Published As

Publication number Publication date
JPS6038673A (ja) 1985-02-28
EP0131458A1 (en) 1985-01-16

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