Navigation aid method based on meteorological conditions
US9715832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2016 |
| Grant date | Jul 25, 2017 |
| Priority date | — |
| Expiry date | Jan 11, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G5/76
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A navigation aid method for an aircraft flying a reference trajectory between a point of departure and a point of arrival subject to a field of wind vectors comprises: decomposing the reference trajectory into a plurality of discrete waypoints Pi, loading meteorological data comprising the field of wind vectors, iterating the following steps N times, to generate an improved trajectory: for each waypoint Pi named current point, determining a reference plane, determining an orthonormal reference frame, determining a wind curl ((∇W)Pi), determining a sign of the projection of the wind curl on axis zi ((∇W)zi ), determining a direction of displacement from the current point Pi to a new current waypoint Pi′, determining a line of displacement, determining a displacement distance, determining the new current waypoint, determining a new trajectory, assigning the new waypoints Pi′ determined in the preceding iteration to the waypoints Pi for the next iteration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.