FR2253246A2 - Doppler radar aircraft landing system - obtains position of aircraft from direction and approach angles - Google Patents

Doppler radar aircraft landing system - obtains position of aircraft from direction and approach angles

Info

Publication number
FR2253246A2
FR2253246A2 FR7342764A FR7342764A FR2253246A2 FR 2253246 A2 FR2253246 A2 FR 2253246A2 FR 7342764 A FR7342764 A FR 7342764A FR 7342764 A FR7342764 A FR 7342764A FR 2253246 A2 FR2253246 A2 FR 2253246A2
Authority
FR
France
Prior art keywords
aircraft
antenna systems
landing system
doppler radar
obtains position
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.)
Granted
Application number
FR7342764A
Other languages
French (fr)
Other versions
FR2253246B2 (en
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 claimed from FR7044760A external-priority patent/FR2119826B1/fr
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7342764A priority Critical patent/FR2253246A2/en
Publication of FR2253246A2 publication Critical patent/FR2253246A2/en
Application granted granted Critical
Publication of FR2253246B2 publication Critical patent/FR2253246B2/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0004—Transmission of traffic-related information to or from an aircraft
    • G08G5/0013—Transmission of traffic-related information to or from an aircraft with a ground station
    • 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
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/52—Systems for determining direction or deviation from predetermined direction using a receiving antenna moving, or appearing to move, in a cyclic path to produce a Doppler variation of frequency of the received signal
    • G01S3/54—Systems for determining direction or deviation from predetermined direction using a receiving antenna moving, or appearing to move, in a cyclic path to produce a Doppler variation of frequency of the received signal the apparent movement of the antenna being produced by coupling the receiver cyclically and sequentially to each of several fixed spaced antennas
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0017—Arrangements for implementing traffic-related aircraft activities, e.g. arrangements for generating, displaying, acquiring or managing traffic information
    • G08G5/0026—Arrangements for implementing traffic-related aircraft activities, e.g. arrangements for generating, displaying, acquiring or managing traffic information located on the ground
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0073—Surveillance aids
    • G08G5/0082—Surveillance aids for monitoring traffic from a ground station
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/02—Automatic approach or landing aids, i.e. systems in which flight data of incoming planes are processed to provide landing data
    • G08G5/025—Navigation or guidance aids

Landscapes

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

Abstract

The landing system employs two antenna systems (11, 111) used to simulate respectively the movement of two mobile antennae, and receiving a fixed frequency wave transmitted by the approaching aircraft. An auxiliary antenna (10), common to the two antenna systems is also employed and is connected to a mixer (20), with the two switching circuits (12, 112) for the elements of the two antenna systems (11, 111) connected to two further mixers (22, 122), all the mixers being connected to an intermediate frequency amplifier (21, 23, 123). The reception path provided by the amplifier of the auxiliary system (10) is supplied with a different local frequency to that supplied to the paths provided by the two antenna systems.
FR7342764A 1970-12-11 1973-11-30 Doppler radar aircraft landing system - obtains position of aircraft from direction and approach angles Granted FR2253246A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7342764A FR2253246A2 (en) 1970-12-11 1973-11-30 Doppler radar aircraft landing system - obtains position of aircraft from direction and approach angles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7044760A FR2119826B1 (en) 1970-12-11 1970-12-11
FR7342764A FR2253246A2 (en) 1970-12-11 1973-11-30 Doppler radar aircraft landing system - obtains position of aircraft from direction and approach angles

Publications (2)

Publication Number Publication Date
FR2253246A2 true FR2253246A2 (en) 1975-06-27
FR2253246B2 FR2253246B2 (en) 1979-08-03

Family

ID=32095142

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7342764A Granted FR2253246A2 (en) 1970-12-11 1973-11-30 Doppler radar aircraft landing system - obtains position of aircraft from direction and approach angles

Country Status (1)

Country Link
FR (1) FR2253246A2 (en)

Also Published As

Publication number Publication date
FR2253246B2 (en) 1979-08-03

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