FIELD: information technology.
SUBSTANCE: method of decoding a production code, comprising converting a received demodulated sequence into codewords of component codes; calculating extended syndromes of codewords of component codes; performing search for a codeword having a "non-zero" syndrome, beginning with which, in steps from vectors of weight-ordered adjacent classes of error vectors corresponding to the calculated extended syndromes of codewords of component codes, chains of localised errors of equal weight is formed; storing in memory chains of localised errors for which syndromes of all codewords of component codes remain "non-zero"; generating a production code correction vector when decoding with a "hard" decision from the stored chain of localised errors, if the chain is one or a correction rejection is established, if there are multiple stored chains of localised errors, inverting elements of the systematic part of the codeword of the production code, the numbers of which correspond to the positions of "non-zero" elements of the generated correction vector.
EFFECT: high quality of decoding.
3 cl, 1 dwg
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