H - Electricity – 03 – H
Patent
H - Electricity
03
H
H03H 7/30 (2006.01) H03H 7/40 (2006.01) H03K 5/159 (2006.01)
Patent
CA 2505435
An equalizer and corresponding methods is arranged and constructed to mitigate adverse effects of a wireless channel (300). The equalizer includes a delay line (503) coupled to an input signal (501) and comprising a delay circuit coupled to an output combiner (507) that is operable to provide an interim signal (g0 ... gN) and a feed forward circuit (505) coupled to the delay line and operable to provide a feed forward signal (506) that comprises a hard decision scaled according to a scaling factor corresponding to an estimate of channel parameters, wherein the output combiner is operable to combine the feed forward signal and the interim signal to provide an output signal (509) that is compensated for an adverse effect of the wireless channel on the input signal.
L'invention concerne un égaliseur et des procédés correspondants arrangé et construits afin d'atténuer les effets nuisibles d'un canal hertzien (300). L'égaliseur comprend une ligne retard (503) couplée à un signal d'entrée (501) et comporte un circuit retard couplé à un combineur de sortie (507) fonctionnant par délivrance d'un signal d'intérim (g0 gN) et un circuit à couplage avant d'alimentation (505) couplé à la ligne retard et fournissant un signal de couplage avant d'alimentation (506) comportant un seuil de décision stricte mesuré selon un facteur de graduation correspondant à une évaluation des paramètres de canal, où le combineur de sortie permet de combiner le signal de couplage avant d'alimentation et le signal d'intérim afin de donner un signal de sortie (509) compensé vis à vis d'un effet nuisible du canal hertzien sur le signal d'entrée.
Miller Timothy R.
Runkle Paul R.
Motorola Inc.
Oyen Wiggs Green & Mutala Llp
LandOfFree
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