NL7116864A - - Google Patents

Info

Publication number
NL7116864A
NL7116864A NL7116864A NL7116864A NL7116864A NL 7116864 A NL7116864 A NL 7116864A NL 7116864 A NL7116864 A NL 7116864A NL 7116864 A NL7116864 A NL 7116864A NL 7116864 A NL7116864 A NL 7116864A
Authority
NL
Netherlands
Application number
NL7116864A
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 filed Critical
Publication of NL7116864A publication Critical patent/NL7116864A/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)
  • Radar Systems Or Details Thereof (AREA)
NL7116864A 1970-12-11 1971-12-08 NL7116864A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7044760A FR2119826B1 (xx) 1970-12-11 1970-12-11

Publications (1)

Publication Number Publication Date
NL7116864A true NL7116864A (xx) 1972-06-13

Family

ID=9065654

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7116864A NL7116864A (xx) 1970-12-11 1971-12-08

Country Status (5)

Country Link
US (1) US3787861A (xx)
DE (1) DE2161520A1 (xx)
FR (1) FR2119826B1 (xx)
GB (1) GB1343308A (xx)
NL (1) NL7116864A (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186398A (en) * 1975-06-09 1980-01-29 Commonwealth Scientific And Industrial Research Organization Modulation of scanning radio beams
US4301455A (en) * 1979-10-17 1981-11-17 United States Of America Groundspeed measurement system
US4485384A (en) * 1981-03-05 1984-11-27 Connor Frank R Microwave system
DE3309784A1 (de) * 1983-03-18 1984-09-20 Standard Elektrik Lorenz Ag, 7000 Stuttgart Doppler-drehfunkfeuer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593485A (en) * 1948-02-06 1952-04-22 Int Standard Electric Corp Localizer beacon system
NL253016A (xx) * 1959-06-30
NL269562A (xx) * 1960-09-24
GB1003317A (en) * 1961-07-28 1965-09-02 Standard Telephones Cables Ltd Radio navigational system
BE636626A (xx) * 1962-08-27
US3354461A (en) * 1963-11-15 1967-11-21 Kenneth S Kelleher Steerable antenna array
US3283326A (en) * 1963-12-09 1966-11-01 Scanwell Lab Inc Antenna array and method for instrument landing systems
US3309708A (en) * 1966-03-11 1967-03-14 Gen Precision Inc Tactical landing approach radio system
GB1234541A (xx) * 1969-02-05 1971-06-03

Also Published As

Publication number Publication date
FR2119826B1 (xx) 1977-01-21
US3787861A (en) 1974-01-22
GB1343308A (en) 1974-01-10
FR2119826A1 (xx) 1972-08-11
DE2161520A1 (de) 1972-06-22

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