Safran Electronics & Defense

Benjamin Deleaux

Arnaud Davenel

David Roberfroid

Emmanuel Robert

Georges-Olivier Reymond

Arnaud Pinturaud

Flavien Roland

Pascal Debanne

Jean-Christophe Charlaix

The invention concerns a device () for locating a target, comprising: &#x2014;a camera () that can be oriented in an orientation in view of the target so that the camera acquires an image of the target, and an orientation in view of a star so that the camera acquires at least one image of the star, &#x2014;an inertial unit () configured to calculate position and orientation data of the camera (), &#x2014;a resetting module () configured to a apply stellar resetting to the data on the basis of the image of the star, in order to produce reset data, &#x2014;a location module () configured to estimate a position of the target (T) from the image of the target (T) and the reset data, &#x2014;a communication interface for communicating with an operator station, the camera () passing from one orientation to the other in response to the reception, by the interface, of a command sent by the operator station.

Device for locating a target by stellar correction, intended to be on board a mobile carrier

A method is proposed for controlling the precession of a gyroscope () comprising a support () and a resonator (), the support () being mobile in a platform coordinate system and stationary in a measurement coordinate system, the method comprising the generation () of a first control signal suitable for rotating the resonator () with respect to the support () in two opposite directions of rotation during a first period, the method being characterized by the following steps:

Method for controlling the precession of a vibrating structure gyroscope

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Boulogne-Billancourt, France

Benjamin Deleaux