Improved method for decoding digital data in a frequency...

H - Electricity – 04 – B

Patent

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H04B 1/00 (2006.01)

Patent

CA 2646187

An improved method is provided for decoding data in a frequency hopping communications system. The method includes: monitoring transition points between data bits (12) in a demodulated data stream, where the data bits are transmitted to a receiver over different transmission frequencies; determining a frequency over which data bits are transmitted to (14) the receiver; determining a reliability metric for each frequency over which data bits were received (16), where the reliability metric is based on transition points of data bits transmitted over a given frequency; and performing a decoding operation using the reliability metric ( 18) for each frequency over which data bits were received.

L'invention porte sur un procédé amélioré de décodage de données dans un système de communication à sauts de fréquence. Le procédé consiste à: surveiller des points de transition entre des bits de données d'un flux de données démodulé, les bits de données étant transmis à un récepteur sur différentes fréquences de transmission; déterminer une fréquence sur laquelle les bits de données sont transmis au récepteur; déterminer une mesure de fiabilité pour chaque fréquence sur lesquelles les bits de données ont été reçus, la mesure de fiabilité étant basée sur des points de transition des bits de données transmis sur une fréquence donnée; et effectuer un décodage à l'aide de la mesure de fiabilité pour chaque fréquence sur lesquelles les bits de données ont été reçus.

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