Patent ID: 9588521
Date: 2017-03-07
CPC Classifications: G05D

Claim:
1. A method of guidance of an aircraft during a low-height flight, said method comprising: a) constructing, by a construction unit, a flight trajectory as a function of the relief of the terrain overflown and of a safety corridor, the safety corridor defining limits on either side of the flight trajectory at least in the lateral plane; b) guiding the aircraft, by a guidance unit, along said flight trajectory; and prior to step a), determining the height of the relief, termed the downstream relief, by a processing unit, the downstream relief existing in the forward sense in the direction of flight of the aircraft, wherein step a) further comprises adapting by the construction unit, in a repetitive manner, for successive points of the flight trajectory, the height of the flight trajectory to said downstream relief, the height of the flight trajectory being adapted, at each point considered of the flight trajectory, to said downstream relief so as to allow the aircraft to clear said downstream relief from said point considered by implementing a rectilinear climb at maximum rate of climb of the aircraft, along a rectilinear lateral direction corresponding to the direction of the aircraft at said point considered.