E.I. Balounin, A.P. Ratoushin, A.J. Barinov

The variety of used correcting codes kinds, possibility of the adaptive variation of their parameters from conditions of the communication line performance generate a problem of their detection at the radio monitoring problems decision. Now cyclic codes with block periodic interleaving are actively applied to correction of erroneous element bursts. The work purpose is boosting of a noise stability of detection of the given codes in comparison with existing methods. The presented analytical model of a cyclic code with interleaving allows to draw a lead-out, that to the sequence coded by a given code properties, characteristic are inherent in simple cyclic codes. The given circumstance has allowed authors to develop a method of detection of the given codes, based on calculation of the code patterns greatest general divider from analyzed discrete sequence and the subsequent analysis of divider structure. Sign of correct decision-making is presence of zero blocks on the fixed positions of the received divider. The spent experimental researches have shown, that the offered approach allows to receive a prize in a noise stability of codes detection in comparison with the Gauss method.