Apparatus for and method of controlling a feedforward filter...

H - Electricity – 03 – H

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H03H 7/30 (2006.01)

Patent

CA 2560735

A method of synchronizing a feedforward filter (46) that receives a signal resulting from the transmission of a series of symbols through a channel, wherein the series of symbols includes a predetermined sequence of symbols includes the step of developing a plurality of samples from the received symbols (60), wherein a sequence of samples corresponds to the predetermined sequence of symbols. The method further includes the steps of estimating a channel impulse response from the plurality of samples, calculating a characteristic of the channel impulse response, and synchronizing (54) the feedforward filter in accordance with the estimated channel impulse response.

L'invention concerne un procédé de synchronisation d'un filtre à réaction précursive (46) qui reçoit un signal résultant de la transmission d'une série de symboles par une voie, ladite série de symboles comprenant une séquence de symboles préétablie. Le procédé consiste à développer une pluralité d'échantillons émanant des symboles reçus (60) et dans laquelle une séquence d'échantillons correspond à la séquence de symboles préétablie. Le procédé consiste également à: estimer une réponse impulsionnelle de la voie de la pluralité d'échantillons; calculer une caractéristique de la réponse impulsionnelle de la voie; et synchroniser (54) le filtre à réaction précursive conformément à la réponse impulsionnelle de la voie estimée.

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