GB847253A - Instrument approach and landing system for aircraft - Google Patents

Instrument approach and landing system for aircraft

Info

Publication number
GB847253A
GB847253A GB835757A GB835757A GB847253A GB 847253 A GB847253 A GB 847253A GB 835757 A GB835757 A GB 835757A GB 835757 A GB835757 A GB 835757A GB 847253 A GB847253 A GB 847253A
Authority
GB
United Kingdom
Prior art keywords
antenna
runway
craft
azimuth
elevation
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
GB835757A
Inventor
Nicolas Anthony Begovich
Richard Harrington Reed
Herman Epstein
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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
Priority to US534641A priority Critical patent/US2952845A/en
Application filed by Hughes Aircraft Co filed Critical Hughes Aircraft Co
Priority to GB835757A priority patent/GB847253A/en
Publication of GB847253A publication Critical patent/GB847253A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q3/22—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 in accordance with variation of frequency of radiated wave
    • 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
    • G01S1/44—Rotating or oscillating beam beacons defining directions in the plane of rotation or oscillation
    • G01S1/54—Narrow-beam systems producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon; Overlapping broad beam systems defining a narrow zone and producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon
    • G01S1/58—Narrow-beam systems producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon; Overlapping broad beam systems defining a narrow zone and producing at a receiver a pulse-type envelope signal of the carrier wave of the beam, the timing of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon wherein a characteristic of the beam transmitted or of an auxiliary signal is varied in time synchronously with rotation or oscillation of the beam
    • G01S1/60—Varying frequency of beam signal or of auxiliary signal
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
    • G01S13/913—Radar or analogous systems specially adapted for specific applications for traffic control for landing purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

847,253. Radio navigation. HUGHES AIRCRAFT CO. March 13, 1957, No. 8357/57. Drawings to Specification. Class 40(7). In an aircraft landing system, the runway is indicated by longitudinal and transverse high frequency radio scanning beam which respectively provide azimuth and elevation readings of craft position. The angular positions of the beams are functions of frequency. The longitudinal beams are a series of vertical planes while the transverse beams are each a sector of a conical surface, the cone apex being at the elevation antenna, at the side of the runway, with the core axis vertical. The intersection of the planes azimuth beam and the conical elevation beam is a hyperbola. The elevation antenna is tilted towards the azimuth antenna in order to place the hyperbola arm, nearest the azimuth antenna, on the runway surface. The angular position of the craft relative to the runway is determined, at the craft, by measurement of the frequency of the incident radiation. The radar echo from the craft provides monitoring signals at the ground transmitters. The beam scanning is effected by means of a frequency shift antenna formed by a folded, rectangular section waveguide with slot radiating elements cut in the narrow hole. The backward wave transmitter and receiver oscillators are electronically tuned, by a series of step voltages applied between the helix and cathode, to produce the successive radiation beam movements.
GB835757A 1955-09-16 1957-03-13 Instrument approach and landing system for aircraft Expired GB847253A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US534641A US2952845A (en) 1955-09-16 1955-09-16 Instrument approach and landing system for aircraft
GB835757A GB847253A (en) 1957-03-13 1957-03-13 Instrument approach and landing system for aircraft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB835757A GB847253A (en) 1957-03-13 1957-03-13 Instrument approach and landing system for aircraft

Publications (1)

Publication Number Publication Date
GB847253A true GB847253A (en) 1960-09-07

Family

ID=9850977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB835757A Expired GB847253A (en) 1955-09-16 1957-03-13 Instrument approach and landing system for aircraft

Country Status (1)

Country Link
GB (1) GB847253A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566150A1 (en) * 1984-06-18 1985-12-20 Lanchais Michel Information transmission and reception system, using miniature electro-optical means, and fulfilling the role of ''compass''
EP1300689A2 (en) * 2001-10-04 2003-04-09 Telecom Italia Lab S.p.A. A method and a system for determining the geographic coordinates within mobile communications networks and related terminal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566150A1 (en) * 1984-06-18 1985-12-20 Lanchais Michel Information transmission and reception system, using miniature electro-optical means, and fulfilling the role of ''compass''
EP1300689A2 (en) * 2001-10-04 2003-04-09 Telecom Italia Lab S.p.A. A method and a system for determining the geographic coordinates within mobile communications networks and related terminal
EP1300689A3 (en) * 2001-10-04 2003-10-08 TELECOM ITALIA S.p.A. A method and a system for determining the geographic coordinates within mobile communications networks and related terminal

Similar Documents

Publication Publication Date Title
US2433804A (en) Frequency-modulated pulse radio locating system
US2415094A (en) Radio measurement of distances and velocities
US2495753A (en) Ground target elimination
US2116667A (en) Radio beacon and blind landing system
US2929059A (en) Radio antennae systems
US2282402A (en) Automatic radio direction indicator system
US5208601A (en) All-weather precision landing system for aircraft in remote areas
US2468751A (en) Object detecting and locating system
US2472212A (en) Method of locating beacons
US3349399A (en) Beacon system for simultaneous azimuth and elevation determination
US2508400A (en) Frequency-modulated direction- and range-finding apparatus
US2422691A (en) Prismatic radiating navigational system
US2682048A (en) Radio object detection apparatus
US2510692A (en) Direction finding system
Page The early history of radar
GB847253A (en) Instrument approach and landing system for aircraft
US2911644A (en) Doppler radio antenna
US2433283A (en) Radio position finding
US2403500A (en) System for and method of aircraft radio communication
US3000007A (en) Radar systems
Schejbal et al. Czech radar technology
Anderson VHF omnirange accuracy improvements
EA028100B1 (en) Approach radar
US3241140A (en) Method and means for eliminating radar range ambiguities
GB1105758A (en) Short-range radar system