H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 27/227 (2006.01) H03D 3/06 (2006.01) H03D 3/22 (2006.01) H03M 13/00 (2006.01) H04L 1/00 (2006.01) H04L 27/22 (2006.01) H04Q 7/20 (2006.01)
Patent
CA 2161057
A decoding apparatus (200) decodes a coherent, differentially encoded multi-level phase shift keying (DEPSK) modulated signal. A coherent receiver (101) receives and, subsequently, outputs the coherent DEPSK modulated signal to a metric computer (201). The metric computer (201) generates a soft decision metric ?(?(n)) corresponding to the coherent DEPSK modulated signal which is outputted to a forward error correction (FEC) decoder (107). The FEC decoder (107) decodes the coherent DEPSK modulated signal in accordance with the soft decision metric ?(?(n)) corresponding to the coherent DEPSK modulated signal.
Un dispositif de décodage (200) décode un signal DEPSK (modulation de phase cohérente à plusieurs niveaux à codage différentiel). Un récepteur cohérent (101) reçoit et, par la suite, transmet le signal DEPSK cohérent à un calculateur (201). Ce dernier (201) produit une mesure de décision pondérée ?(?(n)) correspondant au signal DEPSK cohérent qui est transmis à un décodeur (107) à correction aval des erreurs (FEC). Le décodeur FEC (107) décode le signal DEPSK modulé conformément à la mesure de décision pondérée ?(?(n)) correspondant au signal DEPSK cohérent.
Arens John William
Blasiak Dariusz Andrzej
Gowling Lafleur Henderson Llp
Motorola Inc.
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