NL285388A - - Google Patents

Info

Publication number
NL285388A
NL285388A NL285388DA NL285388A NL 285388 A NL285388 A NL 285388A NL 285388D A NL285388D A NL 285388DA NL 285388 A NL285388 A NL 285388A
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 NL285388A publication Critical patent/NL285388A/xx

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
    • 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/38—Systems 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
    • G01S1/40—Systems 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)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Traffic Control Systems (AREA)
NL285388D 1961-11-10 NL285388A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40393/61A GB1021551A (en) 1961-11-10 1961-11-10 Radio navigation system

Publications (1)

Publication Number Publication Date
NL285388A true NL285388A (fr)

Family

ID=10414678

Family Applications (1)

Application Number Title Priority Date Filing Date
NL285388D NL285388A (fr) 1961-11-10

Country Status (7)

Country Link
US (1) US3234554A (fr)
BE (1) BE624593A (fr)
CH (1) CH420289A (fr)
DE (1) DE1249361B (fr)
GB (1) GB1021551A (fr)
NL (1) NL285388A (fr)
SE (1) SE320710B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE636626A (fr) * 1962-08-27
DE1237647B (de) * 1963-03-09 1967-03-30 Standard Elektrik Lorenz Ag Allrichtungs-Funkortungsverfahren nach dem Dopplerprinzip
US3412405A (en) * 1964-09-14 1968-11-19 Motorola Inc Side lobe response reducing system
US3383689A (en) * 1964-11-11 1968-05-14 Japan Broadcasting Corp Directional wave receiving system
GB1225190A (fr) * 1968-09-23 1971-03-17
GB1234541A (fr) * 1969-02-05 1971-06-03
GB1236141A (en) * 1969-03-07 1971-06-23 Standard Telephones Cables Ltd Radio navigation system
BE759259A (fr) * 1969-11-24 1971-05-24 Int Standard Electric Corp Procede de mesure de frequence
US3798645A (en) * 1970-08-28 1974-03-19 Hazeltine Corp Angular position determining systems using time scanned arrays
US3704465A (en) * 1970-08-28 1972-11-28 Hazeltine Corp Angular position determining system compensated for doppler
GB1335899A (en) * 1971-08-20 1973-10-31 Standard Telephones Cables Ltd Radio navigation beacon
GB2124849A (en) * 1982-07-29 1984-02-22 David Arthur Tong Direction finding systems
US4912479A (en) * 1986-03-26 1990-03-27 Nec Corporation Microwave landing system
EP0383761A1 (fr) * 1987-06-05 1990-08-29 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Ameliorations apportees au traitement de signaux d'antennes de radar a synthese d'ouverture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422333A (en) * 1942-10-19 1947-06-17 Rca Corp Pulse-echo control system

Also Published As

Publication number Publication date
GB1021551A (en) 1966-03-02
US3234554A (en) 1966-02-08
BE624593A (fr)
CH420289A (de) 1966-09-15
DE1249361B (fr)
SE320710B (fr) 1970-02-16

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