METHOD FOR SOFT DECODING OF NOISE-IMMUNE CODE Russian patent published in 2020 - IPC H03M13/13 

FIELD: electrical communication engineering.

SUBSTANCE: invention relates to communication and can be used for soft decoding of a noise-immune code in high-interference communication channels. Method comprises steps of inputting, at the input of a decoding device, n symbols of the received noise-immune code with estimates of authenticity of symbols, depending on communication channel quality, value s of number of least reliable symbols of noise-immune code is evaluated so that probability of correct decoding of noise-immune code is not less, than specified value, from s symbols, selecting the maximum possible number of t symbols corresponding to linearly independent columns of the check matrix of the noise-immune code, which erase and generate 2^s-t versions of the noise-immune code, in which st least reliable symbols of a noise-immune code are received all possible binary combinations, starting with a combination of all 0 and ending with a combination of all 1, perform hard decoding of generated 2^s-t versions of noise-immune code with correction of erasures. Noise-immune code corresponding to a minimum Hamming distance from set of 2^s-t Hamming distances is transmitted to the output of the decoding device.

EFFECT: technical result is reduced decoding complexity with high noise immunity.

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