Thales

Pierre-Yves Dumas

Thierry Ganille

Christian Mehlen

Bruno Aymeric

Jacques Coatantiec

Emmanuel Monvoisin

Jean-Michel Perre

Johanna Lux

Pierre Mariani

Yves Clauzel

Stéphane Rollet

Franck Letestu

Philippe Gaultier

Emmanuel Nguyen

A method for generating at least one trajectory element (T) for controlling an aircraft () according to the trajectory element (T), the generation method being at least partially implemented by a generation system () on board the aircraft (), and comprising the steps of:

Method for generating a trajectory element, associated generation system and aircraft comprising such a generation system

The invention relates to a method for validating at least one position stored in a database of an aircraft comprising a satellite positioning system, the database containing at least one radionavigation beacon position, a runway threshold position, and a displaced runway threshold position on a runway, on which the aircraft is intended to land, the validation of said at least one position comprising a consistency check between at least:

Method for validating at least one predetermined position data stored in an aircraft database, associated computer program and device

This method for determining a virtual speed vector includes the steps of acquiring () a sequences of images of the surrounding environment from an image sensor defining an optical projection center that is substantially stationary relative to the mobile engine, analyzing () at least two successive images in order to determine, in each of the two images, a point, called epipole, representing the position in said image of the optical center of the image sensor at the moment of the acquisition of the other image, and for each analyzed image, determining () the position of the epipole of said image on a display usable to pilot the mobile engine and displaying (), on the display, a symbol representative of the virtual speed vector in said position.

Determining method of a virtual velocity vector of a mobile engine, associated computer program product and determining system

A method of calculating a speed of an aircraft, a method for calculating a protection radius, a positioning system and an associated aircraft are disclosed. In one aspect, the method includes obtaining a measured speed of the aircraft and obtaining a measured position of the aircraft, associated with a reliability protection radius related to position. The method also includes calculating, by a correction loop, a corrected speed, wherein the calculation of the corrected speed includes calculating a calculated position by integration of the corrected speed, and correcting the measured speed as a function of a difference between the calculated position and the measured position. The method further comprising calculating a reliability protection radius related to the corrected speed.

Method for calculating a speed of an aircraft, method for calculating a protection radius, positioning system and associated aircraft

The invention relates to a display system included in a device for traveling a path between at least two distinct points and for using at least one heading datum, wherein the display system comprises at least:

Display system, related display method and computer program

The general field of the invention is that of the methods for three-dimensional graphic representation of at least one landing runway on a display device of an onboard display system for aircraft, said graphic representation being displayed in a synthetic of an outside landscape, said runway comprising a coloured rectangular form, an outline surrounding said form and markings the position of the aircraft in relation to said runway being known in a horizontal plane with a first accuracy and in a vertical axis with a second accuracy. When the first accuracy is above a first threshold and/or when the second accuracy is above a second threshold, the appearance of the rectangular form or of the outline or of at least one marking is modified.

Method for three-dimensional graphic representation of a landing runway on an aircraft display device

A receiver of a digital signal equipped with an N-state weighted-decision trellis Viterbi decoder, the signal received including a series of symbols, is provided. The receiver comprises a programmable logic circuit that includes a source memory A and a destination memory B each comprising N rows and M+L columns respectively allocated to M fixed fields for describing the trellis, and to L variable fields, and an operator able to calculate the variable fields of a memory as a function of the fixed fields of the said memory, of the symbols received and of the variable fields of the other memory and able to reverse the role of the source memory and destination memory.

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Valence, France

Pierre-Yves Dumas