GB1351850A - Angular position determining system compensated for errors due to the doppler effect - Google Patents

Angular position determining system compensated for errors due to the doppler effect

Info

Publication number
GB1351850A
GB1351850A GB1234571A GB1234571A GB1351850A GB 1351850 A GB1351850 A GB 1351850A GB 1234571 A GB1234571 A GB 1234571A GB 1234571 A GB1234571 A GB 1234571A GB 1351850 A GB1351850 A GB 1351850A
Authority
GB
United Kingdom
Prior art keywords
angular position
position determining
errors due
doppler effect
determining system
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
GB1234571A
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
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 Hazeltine Corp filed Critical Hazeltine Corp
Priority claimed from GB3572271A external-priority patent/GB1351848A/en
Publication of GB1351850A publication Critical patent/GB1351850A/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
    • 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
    • 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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/10—Systems for determining distance or velocity not using reflection or reradiation using radio waves using Doppler effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

1351850 Radio navigation HAZELTINE CORP 29 July 1971 [28 Aug 1970] 12345/73 Divided out of 1351848 Heading H4D The subject matter of the Specification is substantially that of Specification 1,351,848 but the claims relate to (i) the transmitting antenna array and (ii) the position finding system as a whole.
GB1234571A 1970-08-28 1971-07-29 Angular position determining system compensated for errors due to the doppler effect Expired GB1351850A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6782070A 1970-08-28 1970-08-28
GB3572271A GB1351848A (en) 1970-08-28 1971-07-29 Receiver for use in an angular position determining system

Publications (1)

Publication Number Publication Date
GB1351850A true GB1351850A (en) 1974-05-01

Family

ID=26262842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1234571A Expired GB1351850A (en) 1970-08-28 1971-07-29 Angular position determining system compensated for errors due to the doppler effect

Country Status (1)

Country Link
GB (1) GB1351850A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee