Method and apparatus for data encoding and communication...

Details Method and apparatus for data encoding and communication... Method and apparatus for data encoding and communication...

H - Electricity

04

L

H04L 7/08 (2006.01) H04B 3/54 (2006.01) H04L 1/00 (2006.01) H04L 1/08 (2006.01) H04L 7/04 (2006.01) H04L 7/033 (2006.01) H04B 1/69 (2006.01) H04B 1/707 (2006.01)

Patent

CA 2215380

A synchronization circuit and method are provided for quickly achieving fast, accurate synchronization utilizing parallel synchronization and sub-bit correlation. The received signal is input to a digitizer (41), whose output is applied to a shift register (43). The shift register (43) has 16 outputs, with each one of the outputs being applied to one of the correlators (42). Each output of the shift register (43) represents a digitized portion of the string. In this way, the bank of correlators (42) maybe used to correlate on the strings (31-38).

La présente invention concerne un circuit de synchronisation et un procédé permettant de réaliser une synchronisation rapide et précise. Ce procédé consiste à réaliser une synchronisation parallèle ainsi qu'une corrélation à un niveau inférieur au niveau binaire. Le signal reçu est fourni en entrée à un numériseur (41) dont la sortie est soumise à un registre à décalage (43). Ce registre à décalage (43) dispose de 16 sorties, chacune de ces sorties aboutissant à un corrélateur (42) d'un jeu de corrélateurs. Chaque sortie du registre à décalage (43) représente la partie numérisée de la chaîne. Cette configuration permet d'utiliser le jeu de corrélateurs (42) pour faire les corrélations s'appliquant aux chaînes (31-38).

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