NL293383A - - Google Patents

Info

Publication number
NL293383A
NL293383A NL293383DA NL293383A NL 293383 A NL293383 A NL 293383A NL 293383D A NL293383D A NL 293383DA NL 293383 A NL293383 A NL 293383A
Authority
NL
Netherlands
Application number
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.)
Publication of NL293383A publication Critical patent/NL293383A/xx

Links

Classifications

    • 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
    • G01S1/00Beacons 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
    • G01S1/02Beacons 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
    • G01S1/08Systems for determining direction or position line
    • G01S1/38Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna
    • G01S1/40Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna the apparent movement of the antenna being produced by cyclic sequential energisation of fixed antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Details Of Aerials (AREA)
NL293383D 1962-05-30 NL293383A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20747/62A GB1038626A (en) 1962-05-30 1962-05-30 Improvements relating to radio beacons

Publications (1)

Publication Number Publication Date
NL293383A true NL293383A (xx)

Family

ID=10150983

Family Applications (1)

Application Number Title Priority Date Filing Date
NL293383D NL293383A (xx) 1962-05-30

Country Status (5)

Country Link
US (1) US3273152A (xx)
BE (1) BE633022A (xx)
CH (1) CH407257A (xx)
GB (1) GB1038626A (xx)
NL (1) NL293383A (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3691560A (en) * 1961-02-02 1972-09-12 Calvin M Hammack Method and apparatus for geometrical determination
US3435457A (en) * 1965-12-07 1969-03-25 Us Army Underground antenna
US3775772A (en) * 1966-05-11 1973-11-27 Us Air Force Ultra hard communications antenna
US3720949A (en) * 1970-04-06 1973-03-13 Us Navy Variable resolution radar for tropospheric sounders
US3972044A (en) * 1974-04-08 1976-07-27 Andrew Alford Antenna system for Doppler VOR ground stations
US5530358A (en) * 1994-01-25 1996-06-25 Baker Hughes, Incorporated Method and apparatus for measurement-while-drilling utilizing improved antennas

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1898474A (en) * 1929-01-19 1933-02-21 John A Willoughby Aircraft landing system
US2665381A (en) * 1947-10-16 1954-01-05 Smith Slotted cylindrical antenna
NL102640C (xx) * 1954-11-16
DE1123000B (de) * 1958-07-16 1962-02-01 Standard Elektrik Lorenz Ag Anordnung zur drahtlosen Richtungsbestimmung auf Grund des Dopplereffektes
US3103663A (en) * 1961-08-23 1963-09-10 Louis W Parker Three-dimensional direction finder for aircraft guidance

Also Published As

Publication number Publication date
BE633022A (xx)
US3273152A (en) 1966-09-13
GB1038626A (en) 1966-08-10
CH407257A (de) 1966-02-15

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