WEIGHTED DECISION RETURN EQ, AND CORRESPONDING EQUALIZATION METHOD

摘要

P The invention relates to a decision feedback equalizer, comprising a direct filter (FF) (11) and a recursive filter (FB) (12), the filter coefficients of which are determined (13) so as to optimize a predetermined quality criterion. Said equalizer receives input data (x), feeding said direct filter (FF), and delivering equalized data (y '), corresponding to the sum of the outputs of said direct filter (FF) and said recursive filter (FB). According to the invention, said recursive filter (FB) is supplied with weighted data (Yrécursif), the value of which takes account of said equalized data (y) and of corresponding confidence information. The invention therefore introduces a weighting, function trust, which effectively fights against the spread of errors. /P