US 8,509,966 B2Granted

Method of estimating atmospheric data at any point of a path of an aircraft

AssigneeThales

InventorsFrancois Coulmeau, Guilhem Putz, Olivier Friedmann

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Abstract

The subject of the present invention is a method of estimating, at any point of a path of an aircraft, characteristics of the wind making it possible to take very close account of the winds to construct predictions of the times of passage and of the consumption of the aircraft along its flight plan, and this method is characterized in that it consists in collecting, around the trajectory of the aircraft, a grid of parameter values of winds at a predetermined number of points in space, in comparing these values to those deriving from space-time wind trend models, in selecting, path section by section, the most likely model, and in interpolating, for each section, the local characteristics of the wind of all the points of interest of the trajectory.

Claims12

Dependent claims

A method of estimating, at any point of a path of an aircraft, atmospheric data utilizing a flight management system, comprising:

collecting with the flight management system, around a trajectory of the aircraft, a grid of parameter values of atmospheric data at a predetermined number of points in space,
comparing with the flight management system said parameter values to values derived from a plurality of mathematically different space-time trend models of said atmospheric data,
selecting with the flight management system, path section by section, a most likely model from the plurality of mathematically different space-time trend models, and
interpolating with the flight management system, for each path section, local characteristics of said atmospheric data for all points of interest of the trajectory and evaluating a value of said atmospheric data at any point in space, by using the most likely model.

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Dependencies are inferred from the claim text.