Variable enhanced ground proximity warning system look-ahead...

Details Variable enhanced ground proximity warning system look-ahead... Variable enhanced ground proximity warning system look-ahead...

2007-04-17

2007-04-17

Nguyen, Phung T. (Department: 2612)

Communications: electrical

Aircraft alarm or indicating systems

Flight alarm

C340S988000, C701S213000

Reexamination Certificate

active

09916630

ABSTRACT:
The present invention includes a system, method and computer program product for reducing nuisance warnings during low altitude flight conditions and in the presence of low position uncertainty. The system includes a first component that determines whether the aircraft is in a low altitude flight condition and a second component that determines the position, positional uncertainty, and the heading. The system also includes a third component that attenuates and refines the look-ahead envelope in accord with the determined condition of flight and positional uncertainty.

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patent: WO 00 47948 (2000-08-01), None
patent: WO 00 48050 (2000-08-01), None

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