Quadrature amplitude modulation synchronization method

Details Quadrature amplitude modulation synchronization method Quadrature amplitude modulation synchronization method

H - Electricity

04

L

H04L 27/34 (2006.01) H03J 7/02 (2006.01) H04L 27/26 (2006.01)

Patent

CA 2103786

In a QAM communication system, a novel synchronizing sequence of symbols added to the information channel simplifies acquisition of timing and synchronization by a receiver. Such synchronization vector provide signals for improved AFC control control signal generation.

Dans un système de télécommunications à modulation d'amplitude en quadrature (QAM), une nouvelle séquence de symboles de synchronisation, ajoutée à la voie de transfert d'informations, simplifie l'acquisition du rythme et de la synchronisation par un récepteur (60). De tels vecteurs de synchronisation produisent des signaux permettant la génération de signaux de commande d'un circuit de commande automatique de fréquence.

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