Thales

Gilles Guerrini

Richard Montigny

Vincent Corretja

Thierry Sfez

Fabien Camus

Fabien Richard

Jean-Marc Chabroux

Stéphane Kemkemian

Bernard Joseph

David Thierry Sfez

Thibault Hernoust

Antoine Veyer

Thierry David Sfez

A radar imaging device having a mission to produce a radar image of a given target, comprising a step of determining the trajectory of the carrier of the imaging device comprises at least: a phase of determining a segment of trajectory for the picture capture, as a function of the position of the target and of the type of image to be produced, the picture capture segment being dedicated to the picture capture of the target by the imaging device; a phase of adding a segment of trajectory of stabilizing the carrier, situated upstream in the extension of the picture capture segment; a phase of addition of a segment of trajectory for homing the carrier onto the stabilizing segment.

Method of optimizing picture captures carried out by an airborne radar imaging device, and mission system implementing such a method

A method () for digital signal processing (S(t)) of a pulse and scanning radar during an observation of a coastal zone in land/sea detection mode, the signal being sampled according to a two-dimensional temporal map, a distance dimension (d) and a recurrence dimension (rec), comprising: selecting a digital terrain model file (MNT) of the observed coastal zone; transforming () the temporal map and/or the digital terrain model file to obtain a transformed temporal map and/or a transformed digital terrain model file the data of which are expressed in a common reference frame; constructing () a mask (MT; MF) from the transformed digital terrain model file; and applying () the mask to the samples (E(d, rec); E(d, &#x394;f)) of the map associated with the transformed temporal map, in such a way as to obtain filtered samples (Ef(d, rec); Ef(d, &#x394;f)).

Method for processing a radar signal in land/sea detection mode; processing system and associated computer program product

A detection method for a given mission comprises at least: one phase of analysing the environment using a waveform chosen beforehand, the signals acquired with this waveform being analysed by processing means in order to deduce therefrom environmental characteristics; and one phase of generating an optimal detection wave depending on the environmental characteristics and characteristics of the mission.

Method for optimising the detection of marine targets and radar implementing such a method

Disclosed is a method and a system for the automated computation of a length or width dimension of a moving platform. The method includes sending radio waves toward the platform along a predetermined transmission axis and acquiring at least one digital power profile signal representative of a received reflected signal power as a function of a radial distance along the transmission axis relative to a reference point. This method next includes applying a filtering operator on the acquired digital power profile signal, making it possible to obtain a filtered digital signal, determining, by computation, a first radial distance corresponding to a first variation peak of the filtered digital signal and a second radial distance corresponding to a second variation peak of the filtered digital signal, and the computing a radial dimension of the platform as a function of the first and second radial distances.

Automated computation of a dimension of a moving platform

A detection method for a given mission comprises: a phase of analyzing the environment, wherein phase elements of influence on the sea clutter perceived by the radar are sought and stored in memory; a phase of updating the path to be followed by the carrier depending on the requirements of the mission and the elements of influence issued from the result of the analyzing phase, the path to be followed decreasing the power of the clutter received by the radar when the antenna is pointing towards a search zone liable to contain a target; the phases being repeated throughout the mission.

Methods for optimizing the detection of marine targets and airborne radar implementing such a method

A target detection method for detecting targets on the ground and in motion, in a video stream that is acquired by an airborne digital camera, which includes the steps of: processing a plurality of successive frames in the video frame in a manner so as to stabilize the frames as if they had been acquired by a fixed camera; and comparing two processed frames, temporally separated from the other, so as to identify the zones of pixels in motion from one processed frame to the other, one zone of pixels in motion constituting a detected target.

Growing community of inventors

Pessac, France

Gilles Guerrini