GB1529553A - Ground proximity warning system - Google Patents

Ground proximity warning system

Info

Publication number
GB1529553A
GB1529553A GB26985/77A GB2698577A GB1529553A GB 1529553 A GB1529553 A GB 1529553A GB 26985/77 A GB26985/77 A GB 26985/77A GB 2698577 A GB2698577 A GB 2698577A GB 1529553 A GB1529553 A GB 1529553A
Authority
GB
United Kingdom
Prior art keywords
ground proximity
proximity warning
warning system
reference values
permanent nature
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
GB26985/77A
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Publication of GB1529553A publication Critical patent/GB1529553A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
    • G01C5/005—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels altimeters for aircraft
    • 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
    • G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/04—Control of altitude or depth
    • G05D1/06—Rate of change of altitude or depth
    • G05D1/0607—Rate of change of altitude or depth specially adapted for aircraft
    • G05D1/0653—Rate of change of altitude or depth specially adapted for aircraft during a phase of take-off or landing
    • G05D1/0676—Rate of change of altitude or depth specially adapted for aircraft during a phase of take-off or landing specially adapted for landing

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Alarm Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

1529553 Ground proximity warning systems TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES 28 June 1977 [1 July 1976] 26985/77 Heading B7W A ground proximity warning system uses analog inputs of radio altitude HR, barometric rate of sink H‹B, and glide slope derivation GS, together with digital inputs of other parameters to calculate the proximity of the aircraft to dangerous terrain conditions. The system periodically acquires test values of the analog inputs, converts them into digital form, and compares them with stored minimum and maximum reference values. A time delay determines whether any test values outside the reference values are of a transient or permanent nature, and means is provided to activate a warning indicator in the cockpit when they are found to be of a permanent nature.
GB26985/77A 1976-07-01 1977-06-28 Ground proximity warning system Expired GB1529553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7620045A FR2343225A1 (en) 1976-07-01 1976-07-01 IMPROVED DIAGNOSTICS FOR GROUND PROXIMITY WARNING SIGNS

Publications (1)

Publication Number Publication Date
GB1529553A true GB1529553A (en) 1978-10-25

Family

ID=9175095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26985/77A Expired GB1529553A (en) 1976-07-01 1977-06-28 Ground proximity warning system

Country Status (6)

Country Link
JP (1) JPS6010356B2 (en)
CA (1) CA1145014A (en)
DE (1) DE2728768A1 (en)
FR (1) FR2343225A1 (en)
GB (1) GB1529553A (en)
IT (1) IT1086238B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111204475A (en) * 2020-03-17 2020-05-29 南昌航空大学 Ground off-position detection device and method for airplane ground proximity warning system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3677018D1 (en) * 1986-11-12 1991-02-21 Litef Gmbh METHOD FOR DETERMINING THE FLIGHT ALTITUDE OF AN AIRCRAFT.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111204475A (en) * 2020-03-17 2020-05-29 南昌航空大学 Ground off-position detection device and method for airplane ground proximity warning system

Also Published As

Publication number Publication date
IT1086238B (en) 1985-05-28
FR2343225B1 (en) 1981-05-08
CA1145014A (en) 1983-04-19
JPS535597A (en) 1978-01-19
JPS6010356B2 (en) 1985-03-16
DE2728768A1 (en) 1978-01-05
FR2343225A1 (en) 1977-09-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee