Method and device for synchronizing rectilinear or...

Details Method and device for synchronizing rectilinear or... Method and device for synchronizing rectilinear or...

H - Electricity

04

B

H04B 7/08 (2006.01)

Patent

CA 2596905

The invention concerns a method for synchronizing a substantially rectilinear signal propagated through an unknown channel, in the presence of substantially rectilinear unknown interference, received by a network of N sensors, wherein a known learning sequence s(nT) of K symbols and sampled at a symbol rhythm T(s(nT), 0 = n = K - 1) The invention is characterized in that it consists in defining from observations x((n + Up)T) over the duration of the learning sequence, where p = T/Te is an integer and Te the sampling period, a virtual observation vector X((n + Up)T) = [x((n + l/p)T)T, as well as a decisional or decisional statistics criterion taking into account the non-circular character of the order of 2 of the interference, using the first and second correlation matrices of the virtual observation vector X((n + Up)T).

Procédé de synchronisation d'un signal sensiblement rectiligne se propageant à travers un canal inconnu, en présence d'interférences sensiblement rectilignes inconnues, reçu par un réseau de N capteurs, dans lequel on utilise une séquence d'apprentissage s(nT) connue de K symboles et échantillonnée au rythme symbole T (s(nT), 0 <= n <= K - 1), caractérisé en ce que l'on définit à partir des observations x((n + Up)T) sur la durée de la séquence d'apprentissage, où p = T/Te est entier et Te la période d'échantillonnage, un vecteur observation virtuel X((n + Up)T) = [x((n + l/p)T)T, ainsi qu'un critère de décision ou statistique de décision en tenant compte du caractère non circulaire à l'ordre 2 des interférences, en utilisant les première et seconde matrices de corrélation du vecteur observation virtuel X((n + Up)T).

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