FIELD: radio communications; coding-decoding linear block codes by analyzing daisy-chain serial codes. SUBSTANCE: decoding device has plurality of concatenated daisy-chain decoders each having different code seed; products of different code seeds form mentioned code seed; different code seeds are presented by different sub-seeds or by their derivatives and decoder of first chain of concatenated decoders receives mentioned flow of code words. Each of decoders executes program solution; code word is, essentially, linear block code. EFFECT: provision for decoding input bit flow of code words using code seed presented by product of sub-seeds. 16 cl, 9 dwg
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