FR1091656A - Improvements in radio-electric tracking - Google Patents

Improvements in radio-electric tracking

Info

Publication number
FR1091656A
FR1091656A FR1091656DA FR1091656A FR 1091656 A FR1091656 A FR 1091656A FR 1091656D A FR1091656D A FR 1091656DA FR 1091656 A FR1091656 A FR 1091656A
Authority
FR
France
Prior art keywords
radio
electric tracking
tracking
electric
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
Other languages
French (fr)
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.)
Ultra Electric Ltd
Original Assignee
Ultra Electric 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 Ultra Electric Ltd filed Critical Ultra Electric Ltd
Application granted granted Critical
Publication of FR1091656A publication Critical patent/FR1091656A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/16—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic
    • G01S3/18—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic derived directly from separate directional antennas
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Emergency Lowering Means (AREA)
  • Transmitters (AREA)
  • Audible And Visible Signals (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR1091656D 1952-05-08 1953-03-25 Improvements in radio-electric tracking Expired FR1091656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1169752A GB717721A (en) 1952-05-08 1952-05-08 Improvements in and relating to radio-location

Publications (1)

Publication Number Publication Date
FR1091656A true FR1091656A (en) 1955-04-14

Family

ID=9991043

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1091656D Expired FR1091656A (en) 1952-05-08 1953-03-25 Improvements in radio-electric tracking

Country Status (4)

Country Link
DE (1) DE962901C (en)
FR (1) FR1091656A (en)
GB (1) GB717721A (en)
NL (1) NL177136B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048839A (en) * 1955-04-01 1962-08-07 Delaware Valley Electronics Co Survivor locator system
GB2318939A (en) * 1996-11-01 1998-05-06 Richard James Harvey Infra-red identification device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE705190C (en) * 1937-02-04 1941-04-19 Telefunken Gmbh Method for sending and receiving high-frequency pulses
DE684804C (en) * 1937-07-08 1939-12-06 Telefunken Gmbh Impulse direction finder
CH236134A (en) * 1944-03-11 1945-01-15 Leuzinger Hans Facility for searching for buried people, especially avalanche victims.

Also Published As

Publication number Publication date
GB717721A (en) 1954-11-03
NL177136B (en)
DE962901C (en) 1957-05-02

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