GB1408026A - Radio navigation beacon - Google Patents

Radio navigation beacon

Info

Publication number
GB1408026A
GB1408026A GB5005072A GB5005072A GB1408026A GB 1408026 A GB1408026 A GB 1408026A GB 5005072 A GB5005072 A GB 5005072A GB 5005072 A GB5005072 A GB 5005072A GB 1408026 A GB1408026 A GB 1408026A
Authority
GB
United Kingdom
Prior art keywords
array
aerials
aerial
radio navigation
energized
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
GB5005072A
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
Priority to GB5005072A priority Critical patent/GB1408026A/en
Priority to AU61365/73A priority patent/AU486215B2/en
Priority to IT30238/73A priority patent/IT1046706B/en
Priority to US00408460A priority patent/US3836978A/en
Priority to DE19732353587 priority patent/DE2353587A1/en
Priority to JP48120872A priority patent/JPS4979192A/ja
Priority to FR7338881A priority patent/FR2204907B2/fr
Publication of GB1408026A publication Critical patent/GB1408026A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching

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)

Abstract

1408026 Radio navigation STANDARD TELEPHONES & CABLES Ltd 25 Oct 1973 [31 Oct 1972] 50050/72 Addition to 1317310 Heading H4D A Doppler-effect beacon comprises a first linear array 1 of m aerials 2 equally spaced by a distance of p, a second co-linear array 3 of n aerials spaced from one another by distances of x.p, where x is any integer from 1 to m, means for commutating energy at a first radio frequency to each of the n aerials of the array 3 in turn, and means for commutating energy at a second radio frequency, different from the first, during the energization of each aerial of the first array, in succession to as many aerials of the second array as correspond to the factor x for the spacing between the aerial of the first array being energized and the next aerial thereof to be energized. The two arrays are commutated in opposite directions. As described, m is eight, p is a quarter-wavelength, and x is variously 2, 3, 4, 5, 6, 8.
GB5005072A 1970-12-29 1972-10-31 Radio navigation beacon Expired GB1408026A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB5005072A GB1408026A (en) 1970-12-29 1972-10-31 Radio navigation beacon
AU61365/73A AU486215B2 (en) 1972-10-31 1973-10-15 Radio navigation beacon
IT30238/73A IT1046706B (en) 1972-10-31 1973-10-18 RADIOFARO FOR NAVIGATION
US00408460A US3836978A (en) 1972-10-31 1973-10-23 Commutated antenna array with grating lobe reduction means in a doppler radio navigation beacon system
DE19732353587 DE2353587A1 (en) 1970-12-29 1973-10-25 FLOOR ANTENNA FOR DOPPLER NAVIGATION SYSTEMS
JP48120872A JPS4979192A (en) 1972-10-31 1973-10-29
FR7338881A FR2204907B2 (en) 1970-12-29 1973-10-31

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB6159570 1970-12-29
GB5005072A GB1408026A (en) 1970-12-29 1972-10-31 Radio navigation beacon

Publications (1)

Publication Number Publication Date
GB1408026A true GB1408026A (en) 1975-10-01

Family

ID=26266607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5005072A Expired GB1408026A (en) 1970-12-29 1972-10-31 Radio navigation beacon

Country Status (3)

Country Link
DE (1) DE2353587A1 (en)
FR (1) FR2204907B2 (en)
GB (1) GB1408026A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1317396A (en) * 1971-03-23 1973-05-16 Standard Telephones Cables Ltd Radio navigation beacon

Also Published As

Publication number Publication date
FR2204907B2 (en) 1977-03-11
DE2353587A1 (en) 1974-05-09
FR2204907A2 (en) 1974-05-24

Similar Documents

Publication Publication Date Title
IT997387B (en) EQUIPMENT FOR POSITIONING THE ANTENNA OF A RADAR SYSTEM
IT985220B (en) IMPROVEMENT IN THE ALIGNMENT OF ELEMENTARY ANTENNAS FOR THE FORMATION OF HIGH DIRECTIVITY SYSTEMS
IT992801B (en) ANTENNAS SYSTEM FOR TWO FREQUENCIES
CA991742A (en) Antenna system for radiating multiple planar beams
GB1408026A (en) Radio navigation beacon
GB1232699A (en)
CA949180A (en) Antenna tracking systems
CA928416A (en) Electronic technique for an all-electronic cylindrical array beacon antenna
AU1726970A (en) Vor antenna system
GB1317310A (en) Radio navigation beacon
AU456445B2 (en) Tacan antenna system
GB1369768A (en) Radio navigation beacon
GB1317298A (en) Radio navigation beacon
CA832632A (en) Directional slot aerials and aerial arrays
IT1007208B (en) ARRANGEMENT OF DIRECTIVE ANTENNA FOR A RADA EQUIPMENT
CA819276A (en) Reciprocal omni-directional rapid scan antenna system
CA728323A (en) One way radio beacon locating system
CA820489A (en) Nonreciprocal omni-directional rapid scan antenna system
CA836162A (en) Phased array antenna system
CA728322A (en) Wide base doppler radio navigation system
CA806311A (en) Combined radar antenna system
AU4952772A (en) Collapsible antenna structure
CA695085A (en) Omnirange beacon antenna
CA807317A (en) Radio direction finders
CA848664A (en) Transportable antenna tower

Legal Events

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