Thales

Eric Laurent

Nicolas Marty

Laurent Flotte

Christian Sannino

Erick Rakotoarisoa

Fabien Kuntz

Jean-Etienne Hiolle

Laurent Laforge

David Barbey

A system including a module for acquiring source bases of terrain data corresponding to an area of a terrain, divided into a plurality of cells; each source base containing, for each cell, an elevation, a module for transposing each source base into a respective transposed base of terrain data corresponding to the area of terrain, divided according to a reference mesh into a plurality of transposed cells, each transposed base including, for each transposed cell, a transposed elevation, a module for evaluating a local consistency level, based on the 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 configured to determine a navigation assistance datum for the aircraft, depending on the assessed local consistency level.

Electronic aircraft navigation assistance system, associated method and computer program

A method and a device for measuring the performance of a diagnoser of a system under diagnosis, which comprises a knowledge base comprising a set of failures of the system, of effects observed and of relations between failures and effects observed, and an algorithmic core. The method comprises a step of calculating a specific detection rate and a specific location rate for the knowledge base, respectively referred to as expected detection rate and expected location rate. It also comprises a step of calculating a specific detection rate and a specific location rate for the set consisting of knowledge base and algorithmic core, respectively referred to as detection rate obtained and location rate obtained; and a step of calculating the performance of the diagnoser as a function of the expected and obtained detection rates and of the expected and obtained location rates.

Method and system for measuring the performance of a diagnoser

A method of displaying, for a system for anti-collision monitoring of an aircraft, the limits of flight margins in relation to obstructions located in a flight zone, and a device for displaying the limits of operational flight margins and the limits of alert zones, is provided. The operational flight margins in the flight zones not initially envisaged, and the limits of the alert zones around the trajectory of the aircraft, are presented.

Method and device for displaying the limits of flight margins for an aircraft

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Colomiers, France

Eric Laurent