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公开(公告)号：EP2656104A1
公开(公告)日：2013-10-30
申请号：EP11802398.5
申请日：2011-12-20
申请人： Thales
发明人： GERMOND, Cécile , SIRVEN, François
CPC分类号： G01S13/94 , G01S13/882 , G01S13/90
摘要： The invention relates to a method and device suitable for monitoring variations in the ground surface R and/or the presence of ground surface elements (2j), said method being implemented on a carrier moving at the speed V=(Vx, Vy, Vz), using a transmission/reception antenna (12) of a signal-processing means (14), said method using a waveform h(t), consisting of a series of pulses or a wave train, and carrying out coherent processing within the wave train element in order to obtain the initially established distance resolution, the method thus involving measuring the distance dj by a filtering method with the distance adapted in each reflected pulse/line, and e) for a set of N signals reflected at N different moments, for one distance range and for each angle of view (θ
c
i ), the method involves processes all the signals received using the formula that translates the Doppler frequency of the reflected signals; (1) then, the method involves: applying an energy detection criterion Ej so as to determine pairs of values (dj, θj) that correspond to the presence of ground surface elements or variations in the ground level, and, having ascertained the values (dj, θj, Hj), the method then involves determining the features of the ground surface elements (2j), the position thereof pj, and the variations Δr in the level of the ground or ground surface.-
2.发明公开
公开(公告)号：EP2936715A1
公开(公告)日：2015-10-28
申请号：EP13805372.3
申请日：2013-12-13
IPC分类号： H04K3/00
摘要： Method of decoying of a system for interception and/or jamming, consisting in generating, in a signal to be emitted, a dummy sequence (SYNC
F ), said method comprising the following steps: - defining said dummy sequence (SYNC
F ) and its temporal and/or frequential position within the signal to be emitted, the values of the symbols of said dummy sequence and their temporal and/or frequential positions being different from those of the symbols of a synchronization sequence (SYNC) that the said signal comprises, - estimating the value and the position of the dummy bits (B
F ) to be inserted within the data sequence (D
u , T) to be emitted at the input of the emission chain so as to obtain, in the sequence produced at the output of the emission chain, the predetermined value and predetermined temporal position of the symbols of said dummy sequence (SYNC
F ), - inserting, within said data sequence (D
u , T), the dummy bits (B
F ) at the positions obtained.-
3.发明授权
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4.发明授权
公开(公告)号：EP2936714B1
公开(公告)日：2016-08-31
申请号：EP13803075.4
申请日：2013-12-13
IPC分类号： H04K3/00
CPC分类号： H04K3/65 , H04K2203/34
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公开(公告)号：EP3503455A1
公开(公告)日：2019-06-26
申请号：EP18215502.8
申请日：2018-12-21
申请人： Thales
发明人： SIRVEN, François , GARRIDO, Eric , PREST, Thomas
IPC分类号： H04L5/00
摘要： L'invention concerne un procédé et un dispositif permettant d'allouer des canaux de communication à plusieurs utilisateurs dans un réseau, comportant au moins les étapes suivantes :
a) définir un premier ensemble d'allocation composé des triplets suivants (numéro de canal, numéro de slot, utilisateur attribué à un canal pour un slot donné) représentant l'allocation de C canaux de communication, pour les N utilisateurs, sur une session temporelle composée de plusieurs créneaux temporels, en respectant C = N et C=cardinal d'un corps fini,
b) générer à partir de la première matrice d'allocation des canaux, C autres matrices, lesdites C matrices d'allocation étant générées en utilisant une fonction afin que chaque utilisateur voit les autres utilisateurs au moins une fois pendant la session.-
6.发明公开
公开(公告)号：EP2936714A1
公开(公告)日：2015-10-28
申请号：EP13803075.4
申请日：2013-12-13
IPC分类号： H04K3/00
CPC分类号： H04K3/65 , H04K2203/34
摘要： A method for scrambling a communication system (EM,REC) consisting of generating, in a signal (S) intended to be transmitted by one or a plurality of transmitters (EM_B1, EM_B2,...,EM_B3) compatible with said communication system (EM,REC), at least one dummy sequence (SYNC
F ), said method being characterised in that it comprises the following steps: - Defining said dummy sequence (SYNCF) and the time and/or frequency position thereof within the signal (S) to be transmitted, - Estimating the value and the position of the dummy bits (BF) to be inserted into the data sequence (Du,T) to be transmitted at the input of the transmission chain or a sub-part of the transmission chain so as to obtain, in the sequence produced at the output of the transmission chain, the predefined value and time position of the symbols of said dummy sequence (SYNCF), - Inserting the dummy bits (BF) into said data sequence (Du,T), in the obtained positions.-
公开(公告)号：EP2656104B1
公开(公告)日：2015-07-29
申请号：EP11802398.5
申请日：2011-12-20
申请人： THALES
发明人： GERMOND, Cécile , SIRVEN, François
CPC分类号： G01S13/94 , G01S13/882 , G01S13/90
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