FIELD: physics, communication.
SUBSTANCE: method of code cyclic sync concerns field of telecommunication and can be used for cyclic sync of conferrings in systems of transmission of the discrete information in which are used correcting, in particular cascade codes. The essence of the invention consists that the accepted input sequence representing the total on the module two checkout parts of an unjammable code, numbering and synchronising sequences, multiply by a checkout multinominal of a code. As a result calculate the total of a syndrome of an unjammable code and numbering and synchronising sequences. Then on the total of a syndrome of an unjammable code and synchronising sequence spot a vector of errors and correct errors in numbering sequence. After that compare numbering and synchronising sequences with earlier accepted and gain certain number of coincidence of numbering and synchronising sequences with corresponding numbering and synchronising sequences before the accepted code words. Thus, if this number of coincidence exceeds some in advance given threshold value, make the solution on presence of cyclic sync. And input sequence break into groups on f figures (f>1) in each group and calculate the total of a syndrome of the unjammable code, numbering and synchronising sequences, and also spot a vector of errors and correct errors in numbering sequence in a series-parallel code by means of in advance calculated functional connections set in a tabular view.
EFFECT: speed increase.
2 cl
