Multiband detector

H - Electricity – 04 – L

Patent

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Details

H04L 1/20 (2006.01) H04L 25/03 (2006.01) H04L 27/01 (2006.01) H04L 27/26 (2006.01)

Patent

CA 2248717

In a multiband detector (DET), sub-band reconstruction and distortion compensation is performed by a plurality of digital filters (FIRl, ..., FIRk, ..., FIRN) arranged in a single-input-multiple-output architecture. Each digital filter (FIRk) is coupled between one and the same input (RDA-I) whereto a distorted multiband signal (si) is applied and a respective output (RDA-Ok) whereto a reconstructed sub-band signal (sik) is applied. This multiband detector (DET) has a uniform architecture for each input-output path and can easily be adapted to changes in distortion of the multiband signal (si), even if these changes only affect a fewsub-bands.

Dans un détecteur multibande (DET), un certain nombre de filtres numériques (FIRl, ... FIRk, ...FIRN) configurés suivant une architecture entrée unique/sorties multiples exécutent des fonctions de reconstitution de bande et de compensation de distorsion. Chaque filtre numérique (FIRk) est couplé entre une seule et même entrée (RDA-I), à laquelle est appliqué un signal multibande déformé (si), et une sortie correspondante (RDA-Ok), où se retrouve un signal de bande reconstitué (sik). Le détecteur multibande (DET) a une architecture multiforme pour chaque trajet d'entrée-sortie et peut facilement être adapté suivant les modifications de distorsion du signal multibande (si), même si ces modifications ne touchent que quelques bandes.

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