User:Gallsup: Difference between revisions
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Created page with "Patent: 4737788 Helicopter Obstacle Detector Filed: 4 April 1985 Issued: 12 April 1988 Obstacle Detector for helicopters and other aircraft having rotary blades. The detector us..." |
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Revision as of 13:26, 24 January 2011
Patent: 4737788 Helicopter Obstacle Detector Filed: 4 April 1985 Issued: 12 April 1988
Obstacle Detector for helicopters and other aircraft having rotary blades. The detector uses pulsed Doppler radar to sense any obstacles in the flight path of the helicopter of like aircraft. The pulsed Doppler radar is mounted adjacent to the tip of one of the helicopter or like aircraft rotor blades. The rotor blade tip velocity of the helicopter or like aircraft shifts the frequency of radar echoes. This allows pulsed Doppler radar techniques to be used so that the echoes from obstacles are distinguished from clutter. Information for this patent can be found here.[1]
