FR74024E - Système de radionavigation - Google Patents

Système de radionavigation

Info

Publication number
FR74024E
FR74024E FR57611D FR57611D FR74024E FR 74024 E FR74024 E FR 74024E FR 57611 D FR57611 D FR 57611D FR 57611 D FR57611 D FR 57611D FR 74024 E FR74024 E FR 74024E
Authority
FR
France
Prior art keywords
navigation system
radio navigation
radio
navigation
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
Application number
FR57611D
Other languages
English (en)
Inventor
Sven H M Dodington
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from US531025A external-priority patent/US2877344A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR74024E publication Critical patent/FR74024E/fr
Expired 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S13/00—Systems 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
FR57611D 1955-08-15 1956-08-28 Système de radionavigation Expired FR74024E (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR697546A FR1237108A (fr) 1955-08-15 1955-08-15 Systèmes de radionavigation
US531025A US2877344A (en) 1955-08-29 1955-08-29 Transmitter-receiver tuning system

Publications (1)

Publication Number Publication Date
FR74024E true FR74024E (fr) 1960-11-07

Family

ID=26182961

Family Applications (3)

Application Number Title Priority Date Filing Date
FR697546A Expired FR1237108A (fr) 1955-08-15 1955-08-15 Systèmes de radionavigation
FR57589A Expired FR74023E (fr) 1955-08-15 1956-08-21 Système de radionavigation
FR57611D Expired FR74024E (fr) 1955-08-15 1956-08-28 Système de radionavigation

Family Applications Before (2)

Application Number Title Priority Date Filing Date
FR697546A Expired FR1237108A (fr) 1955-08-15 1955-08-15 Systèmes de radionavigation
FR57589A Expired FR74023E (fr) 1955-08-15 1956-08-21 Système de radionavigation

Country Status (1)

Country Link
FR (3) FR1237108A (fr)

Also Published As

Publication number Publication date
FR1237108A (fr) 1960-07-29
FR74023E (fr) 1960-11-07

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