CSKH-01.2019 - (Abstract) - The model of the discrete communication link with multiplexing considering Markov’s properties of the condensed sources of messages and a source of errors is considered. The algorithm of decoding of convolutional codes in communication links with multiplexing considering the statistical properties of a source of errors and an encoded flow received on the basis of recognition and the subsequent information analysis about the regular sequences in multiplex digital flows is offered. Methods of estimation of rows of distributions of two-dimensional random value in a flow of errors and an encoded flow are offered.