US 12,236,792 B2
Electronic aircraft navigation assistance system, associated method and computer program
Jean-Etienne Hiolle, Toulouse (FR); Eric Laurent, Toulouse (FR); Laurent Laforge, Toulouse (FR); David Barbey, Toulouse (FR); and Erick Rakotoarisoa, Toulouse (FR)
Assigned to THALES, Courbevoie (FR)
Filed by THALES, Courbevoie (FR)
Filed on Feb. 6, 2023, as Appl. No. 18/164,810.
Claims priority of application No. 2201228 (FR), filed on Feb. 11, 2022.
Prior Publication US 2023/0260409 A1, Aug. 17, 2023
Int. Cl. G08G 5/00 (2006.01)
CPC G08G 5/006 (2013.01) [G08G 5/0021 (2013.01); G08G 5/0086 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An electronic system for assisting the navigation of an aircraft, comprising:
an acquisition module acquiring a plurality of source bases of terrain data, each source base corresponding to a zone of a terrain likely to be overflown by the aircraft, divided according to a mesh into a plurality of cells, each corresponding to a sector of the zone of the terrain, each source base containing, for each cell, an elevation;
a transposition module transposing each source base into a respective transposed base of terrain data, each transposed base corresponding to the zone of the terrain, divided according to a reference mesh into a plurality of transposed cells, the reference mesh being common to all transposed bases, each transposed base including, for each transposed cell, a transposed elevation;
an evaluation module evaluating a local coherence level for at least one transposed cell of a respective transposed base, based on comparison of the transposed elevation of the cell with the transposed elevation of the corresponding transposed cell of at least one other transposed base; and
an assistance module determining an aircraft navigation assistance datum, as a function of the local coherence level evaluated for the at least one transposed cell.