FIELD: communication equipment.
SUBSTANCE: invention relates to communication engineering and can be used in designing new and upgrading existing data exchange systems using block noise-immune codes. Permutational decoder includes a permutation matrix unit, a canonical shape unit, a cognitive map unit, a permutation correction unit, a numbering unit and symbol values unit, as well as a fast matrix transformation unit.
EFFECT: technical result is an increase in the decoder performance and a significant reduction in the decoder memory capacity requirements.
1 cl, 1 dwg, 2 tbl
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