FIELD: coding systems such as integrated coding ones including error correction and detection to enhance effectiveness of spectrum use when transferring voice data in digital communication system.
SUBSTANCE: according to first alternative of interleaving, sequence of code characters is divided into plurality of sequences, interleaving being made in each of them by means of pilot pseudorandom sequence specified by given Hamilton path on regular tetravalent graph. According to second alternative of interleaving, data sequence is divided into two sequences, parameter of separation in one of them being higher than √(N/2) value, where N is interleaving block size; separation parameter value in second sequence is set to be not lower than that of additionally found threshold. Use is made of irregular integrating repetition block code characterized in improved data detection criterion and optimized interleavers.
EFFECT: improved communication quality and/or improved effectiveness of channel utilization.
9 cl, 16 dwg, 6 tbl
