GB1317298A - Radio navigation beacon - Google Patents

Radio navigation beacon

Info

Publication number
GB1317298A
GB1317298A GB1317298DA GB1317298A GB 1317298 A GB1317298 A GB 1317298A GB 1317298D A GB1317298D A GB 1317298DA GB 1317298 A GB1317298 A GB 1317298A
Authority
GB
United Kingdom
Prior art keywords
radio navigation
oct
navigation beacon
beacon
aerials
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
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1317298A publication Critical patent/GB1317298A/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

Landscapes

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

Abstract

1317298 Radio navigation; aerials STANDARD TELEPHONES & CABLES Ltd 7 Oct 1971 [13 Oct 1970] 48611/70 Headings H4A and H4D In a Doppler-effect beacon utilizing commutation to a linear (rectilinear or curved) aerial array, it is desired to transform the known conical surfaces into planar surfaces; according to the invention this is achieved by adding a refracting means, e.g. a dielectric lens 2 shaped as shown, whereby a measured phase intercept between A and B (in the far field) is proportional to #.
GB1317298D 1970-10-13 1970-10-13 Radio navigation beacon Expired GB1317298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4861170 1970-10-13

Publications (1)

Publication Number Publication Date
GB1317298A true GB1317298A (en) 1973-05-16

Family

ID=10449258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1317298D Expired GB1317298A (en) 1970-10-13 1970-10-13 Radio navigation beacon

Country Status (5)

Country Link
JP (1) JPS5116273B1 (en)
DE (1) DE2150659A1 (en)
ES (1) ES395929A1 (en)
FR (1) FR2110389B1 (en)
GB (1) GB1317298A (en)

Also Published As

Publication number Publication date
FR2110389A1 (en) 1972-06-02
FR2110389B1 (en) 1977-01-21
JPS5116273B1 (en) 1976-05-22
AU3391271A (en) 1973-04-05
DE2150659A1 (en) 1972-04-20
ES395929A1 (en) 1974-09-01

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee