A method for stabilizing the operation of fractionally...

H - Electricity – 04 – L

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H04L 27/01 (2006.01) H04B 1/18 (2006.01) H04L 25/03 (2006.01)

Patent

CA 2246036

A method and/or system for the stable operation of fractionally spaced equalizers available in digital signal receivers, having a plurality of equalization coefficients, said equalization coefficients being updatableby minimizing a proper cost function and stabilizable through a proper change of said cost function, said change of said cost function requiring the use of a virtual noise matrix. According to the invention, the cost function (J) for the updating of the coefficients of the fractionally spaced equalizer (FSE) is changed by adding a cyclostationary virtual interference [v(t)].

Méthode et(ou) système permettant le fonctionnement stable d'égaliseurs à espacements fractionnels (FSE) situés dans des récepteurs de signaux numériques, ayant un certain nombre de coefficients d'égalisation, ces coefficients d'égalisation étant actualisables par minimisation d'une fonction de coût propre et stabilisables au moyen d'une modification de ladite fonction de coût, cette modification nécessitant l'utilisation d'une matrice de bruits virtuels. Conformément à l'invention, la fonction de coût (J) applicable à la mise à jour des coefficients du FSE est modifiée par l'ajout d'un brouillage virtuel cyclostationnaire [v(t)].

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