Method and device for assisting height holding in air navigation

Details Method and device for assisting height holding in air navigation Method and device for assisting height holding in air navigation

1986-07-23

1988-09-20

Lall, Parshotam S.

Boots, shoes, and leggings

364458, 244180, G06F 1550, G05D 106

Patent

active

047730170

ABSTRACT:
A method and device are provided for assisting in height holding in air navigation, consisting, for any point (M) of the image of the landscape flown over by the aircraft (A), located by its angle of elevation (.theta.-p) with respect to the speed vector V of the aircraft, and situated in a zone between a lower elevational limit (.theta..sub.1 -p) and an upper elevational limit (.theta..sub.2 -p), in the trajectory of the aircraft, in detecting a possible deviation between the angular speed .OMEGA. of movement of this point with respect to the aircraft, depending on the height (h,H) of subsequent crossing of this point by the aircraft, for identical piloting conditions, and an angular reference speed of movement (.OMEGA..sub.o) corresponding to a reference height (h.sub.o,H.sub.o) of subsequent crossing by the aircraft of a point having the same elevation (.theta.-p), for identical piloting conditions, and in modifying the piloting of the aircraft, should a deviation between these angular speeds of movement be detected, so as to reduce these deviations.

REFERENCES:
patent: 3076095 (1963-01-01), Becklund
patent: 4490719 (1984-12-01), Botwin et al.
patent: 4514733 (1985-04-01), Schmidtlein et al.
patent: 4527161 (1985-07-01), Wehner
Merchant, "Exact Area Registration of Different Views of a Common Object Scene", 5/81, Optical Engineering, vol. 20, No. 3, pp. 424-434.

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