FIELD: electrical communication engineering.
SUBSTANCE: invention relates to communication engineering and can be used in designing new and updating existing data exchange systems. Reverse feedback decoder has: a reception unit, a soft symbol unit, a soft decision converter, a rating ordering unit, an equivalent code unit, a comparison and inverse transform unit, an erasure repair unit, wherein a permutation ranging unit is further included, a negative permutation unit, a negative permutation input unit, a positive permutation unit, a fast matrix transformation unit, a soft decision averaging unit and a feedback signal unit.
EFFECT: technical result is a reduction in the amount of memory for storing reference matrices.
1 cl, 3 dwg, 2 tbl
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