GB717721A - Improvements in and relating to radio-location - Google Patents

Improvements in and relating to radio-location

Info

Publication number
GB717721A
GB717721A GB1169752A GB1169752A GB717721A GB 717721 A GB717721 A GB 717721A GB 1169752 A GB1169752 A GB 1169752A GB 1169752 A GB1169752 A GB 1169752A GB 717721 A GB717721 A GB 717721A
Authority
GB
United Kingdom
Prior art keywords
receiver
pulse
valve
switch
beacon
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
GB1169752A
Other languages
English (en)
Inventor
Leonard George Walter Kott
David Kerr
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
Priority to NLAANVRAGE7401422,A priority Critical patent/NL177136B/nl
Application filed by Ultra Electric Ltd filed Critical Ultra Electric Ltd
Priority to GB1169752A priority patent/GB717721A/en
Priority to DEU2079A priority patent/DE962901C/de
Priority to FR1091656D priority patent/FR1091656A/fr
Publication of GB717721A publication Critical patent/GB717721A/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)
  • Radar Systems Or Details Thereof (AREA)
  • Emergency Lowering Means (AREA)
  • Transmitters (AREA)
  • Audible And Visible Signals (AREA)
GB1169752A 1952-05-08 1952-05-08 Improvements in and relating to radio-location Expired GB717721A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NLAANVRAGE7401422,A NL177136B (nl) 1952-05-08 Overbruggingsinrichting voor uitzetvoegen in wegen.
GB1169752A GB717721A (en) 1952-05-08 1952-05-08 Improvements in and relating to radio-location
DEU2079A DE962901C (de) 1952-05-08 1953-03-08 Funkortungssystem zum Feststellen versprengter Personen
FR1091656D FR1091656A (fr) 1952-05-08 1953-03-25 Perfectionnements au repérage radio-électrique

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
GB717721A true GB717721A (en) 1954-11-03

Family

ID=9991043

Family Applications (1)

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

Country Status (4)

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

Cited By (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 (de) * 1937-02-04 1941-04-19 Telefunken Gmbh Verfahren zum Senden und Empfangen hochfrequenter Impulse
DE684804C (de) * 1937-07-08 1939-12-06 Telefunken Gmbh Impulspeilempfaenger
CH236134A (de) * 1944-03-11 1945-01-15 Leuzinger Hans Einrichtung zum Aufsuchen verschütteter Personen, insbesondere Lawinenverschütteter.

Cited By (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

Also Published As

Publication number Publication date
NL177136B (nl)
FR1091656A (fr) 1955-04-14
DE962901C (de) 1957-05-02

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