Patent ID: 9715832
Date: 2017-07-25
CPC Classifications: G01C,G01W,G06F,G08G

Claim:
1. An aircraft navigation aid method for determining an improved trajectory, executed by a flight management system, said aircraft flying a reference trajectory between a point of departure and a point of arrival subject to a field of wind vectors, the method comprising the steps of: decomposing with the flight management system the reference trajectory into a plurality of discrete waypoints Pi indexed i, i varying from 1 to n−1, the point of departure corresponding to an index 0 and the point of arrival to an index n, loading meteorological data into the flight management system comprising the field of wind vectors in an area of predetermined dimensions including the reference trajectory, iterating with the flight management system the following steps N times, so as to generate an improved trajectory: for each waypoint Pi named current point, determining with the flight management system a new trajectory from said new current points Pi′, the point of departure and the point of arrival remaining unchanged, assigning with the flight management system the new waypoints Pi′ determined in the preceding iteration and to the waypoints Pi for the next iteration, displaying the improved trajectory to a pilot on a display.