Signal weighting system for digital receiver

Details Signal weighting system for digital receiver Signal weighting system for digital receiver

H - Electricity

04

L

H04L 1/20 (2006.01) H03M 13/00 (2006.01) H04B 7/005 (2006.01)

Patent

CA 2075051

A signal weighting system for associating a confidence level with portions of a communication signal transmitted upon a multipath channel and received by a receiver. A signal received by the receiver is equalized by an equalizer circuit, such as a maximum likelihood sequence estimator, and the equalized signal generated thereby is supplied to an adaptive filter which is synthesizes portions of the multipath channel. The signal received by the receiver is altered responsive to values of a filtered, equalized signal generated by the adaptive filter.

L'invention est un système de pondération de signaux servant à associer un niveau de confidence aux parties d'un signal de communication transmis sur un canal multitrajet et capté par un récepteur. Le signal reçu par ce récepteur est égalisé par un circuit d'égalisation, tel qu'un estimateur de séquences à maximum de vraisemblance, et le signal égalisé est transmis à un filtre adaptatif qui synthétise des parties du canal multitrajet. Le signal reçu est modifié selon les paramètres du signal égalisé produit par le filtre adaptatif.

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