Method, decoder circuit, and system for decoding a...

Details Method, decoder circuit, and system for decoding a... Method, decoder circuit, and system for decoding a...

H - Electricity

04

B

H04B 1/69 (2006.01) H04L 25/03 (2006.01) H04J 11/00 (2006.01) H04L 1/00 (2006.01)

Patent

CA 2176238

Non-coherently demodulated signals are efficiently decoded using a non-complex system that is independent of the fading statistics of the channel. A symbol metric calculator (406) receives a signal-to-noise ratio (404) and symbols from a non-coherently demodulated signal (402) to efficiently produce weighted symbol metrics (408). A symbol metric deinterleaver (410) is then used to deinterleave the weighted symbol metrics. A decoder (414) produces a decoded bit sequence (416) based on the deinterleaved weighted symbol metrics (412).

Des signaux à démodulation non cohérente sont efficacement décodés au moyen d'un système non complexe indépendant des statistiques d'évanouissement du canal. Un calculateur (406) de mesures métriques de symboles reçoit un rapport signal-bruit (404) et des symboles d'un signal à démodulation non cohérente (404) afin de produire des mesures métriques de symboles pondérées (408). Un dispositif de désentrelacement (410) de mesures métriques de symboles est alors utilisé pour désentrelacer lesdites mesures. Un décodeur (414) produit une séquence binaire décodée (416) en fonction des mesures métriques de symboles pondérées et désentrelacées (412).

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