NL7410997A - Doppler vor baken. - Google Patents

Doppler vor baken.

Info

Publication number
NL7410997A
NL7410997A NL7410997A NL7410997A NL7410997A NL 7410997 A NL7410997 A NL 7410997A NL 7410997 A NL7410997 A NL 7410997A NL 7410997 A NL7410997 A NL 7410997A NL 7410997 A NL7410997 A NL 7410997A
Authority
NL
Netherlands
Prior art keywords
doppler
beacon
Prior art date
Application number
NL7410997A
Other languages
English (en)
Original Assignee
Amalgamated Wireless Australas
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 Amalgamated Wireless Australas filed Critical Amalgamated Wireless Australas
Publication of NL7410997A publication Critical patent/NL7410997A/nl

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)
NL7410997A 1973-08-16 1974-08-16 Doppler vor baken. NL7410997A (nl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU451173 1973-08-16
AU67409/74A AU486176B2 (en) 1973-08-16 1974-04-01 Improvements in doppler vor beacons
US05/498,503 US3999187A (en) 1973-08-16 1974-08-19 Doppler VOR beacons

Publications (1)

Publication Number Publication Date
NL7410997A true NL7410997A (nl) 1975-02-18

Family

ID=27151568

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7410997A NL7410997A (nl) 1973-08-16 1974-08-16 Doppler vor baken.

Country Status (6)

Country Link
US (1) US3999187A (nl)
AU (1) AU486176B2 (nl)
CA (1) CA1039389A (nl)
DE (1) DE2439117C3 (nl)
GB (1) GB1416854A (nl)
NL (1) NL7410997A (nl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574467A (en) * 1995-03-09 1996-11-12 Interval Research Corporation Doppler positioning using non-planar movement of transmitting source and receiving source
US6147657A (en) * 1998-05-19 2000-11-14 Harris Corporation Circular phased array antenna having non-uniform angular separations between successively adjacent elements
US6608592B2 (en) * 2002-01-18 2003-08-19 Hewlett-Packard Development Company, Lp. Location system using beacon transmitters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281843A (en) * 1963-12-09 1966-10-25 Electronic Specialty Co Electronically scanned antenna
US3474446A (en) * 1968-02-26 1969-10-21 Itt Cylindrical array antenna system with electronic scanning

Also Published As

Publication number Publication date
DE2439117C3 (de) 1979-01-04
DE2439117B2 (de) 1978-05-03
DE2439117A1 (de) 1975-02-27
AU486176B2 (en) 1975-10-02
CA1039389A (en) 1978-09-26
US3999187A (en) 1976-12-21
GB1416854A (en) 1975-12-10
AU6740974A (en) 1975-10-02

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed