GB1062981A - Aircraft obstacle avoidance apparatus - Google Patents

Aircraft obstacle avoidance apparatus

Info

Publication number
GB1062981A
GB1062981A GB43355/60A GB4335560A GB1062981A GB 1062981 A GB1062981 A GB 1062981A GB 43355/60 A GB43355/60 A GB 43355/60A GB 4335560 A GB4335560 A GB 4335560A GB 1062981 A GB1062981 A GB 1062981A
Authority
GB
United Kingdom
Prior art keywords
signals
equi
plane
obstacle
obstacles
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
GB43355/60A
Inventor
Neil Sullivan
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.)
Sperry Gyroscope Co Ltd
Original Assignee
Sperry Gyroscope Co Ltd
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 Sperry Gyroscope Co Ltd filed Critical Sperry Gyroscope Co Ltd
Priority to GB43355/60A priority Critical patent/GB1062981A/en
Publication of GB1062981A publication Critical patent/GB1062981A/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
    • 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
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/933—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of aircraft or spacecraft
    • G01S13/935—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of aircraft or spacecraft for terrain-avoidance

Landscapes

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

Abstract

1,062,981. Pulse radar. SPERRY GYROSCOPE CO. Ltd. March 16, 1962 [Dec. 16, 1960], No. 43355/60. Heading H4D. An aircraft is guided over ground obstacles by a pulse radar mounted in the nose. Signals are generated at the radar receiver when obstacles lying forward of the craft intrude within a predetermined threshold range. The signals activate the elevators to cause climbing. The rate of climbing is increased upon further intrusion of the obstacle by an integration term in the control loop. The radar antenna transmits and receives during alternate periods. The transmission is effected by a single narrow beam which scans in a vertical plane which includes the craft line of flight. During reception the directivity characteristic of the antenna is in the form of two overlapping, narrow, lobes in the scanning plane, and which produce two signals so as to provide an equi-signal plane perpendicular to the plane of the lobes. The received lobe signals form sum and difference signals, and the latter are either in-phase or anti-phase with the sum signals, which form a reference, according as the obstacle is below or above the equi-signal plane. Only those obstacle signals within a specified range are used to control the aircraft climb and this range is increased at scan angles above the equi-signal plane. Similarly, only anti-phase difference signals, corresponding to obstacles above the equi-signal surface are used.
GB43355/60A 1960-12-16 1960-12-16 Aircraft obstacle avoidance apparatus Expired GB1062981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB43355/60A GB1062981A (en) 1960-12-16 1960-12-16 Aircraft obstacle avoidance apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43355/60A GB1062981A (en) 1960-12-16 1960-12-16 Aircraft obstacle avoidance apparatus

Publications (1)

Publication Number Publication Date
GB1062981A true GB1062981A (en) 1967-03-22

Family

ID=10428405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43355/60A Expired GB1062981A (en) 1960-12-16 1960-12-16 Aircraft obstacle avoidance apparatus

Country Status (1)

Country Link
GB (1) GB1062981A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220813A (en) * 1988-07-14 1990-01-17 Messerschmitt Boelkow Blohm Missile guidance system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220813A (en) * 1988-07-14 1990-01-17 Messerschmitt Boelkow Blohm Missile guidance system
GB2220813B (en) * 1988-07-14 1992-12-16 Messerschmitt Boelkow Blohm Missile guidance system

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