Lvov Aleksei Arlenovich Russia Saratov State Technical University, Saratov State Technical University, Russia, 410054, Saratov, Politekhnicheskaya st., 77 Professor Doctor of technical sciencesalvova@mail.ru Author's articles Numerical Modelling and the Analysis of Impact of Distortions on OFDM/QAM-signal Numerical Modelling and the Analysis of Impact of Distortions on OFDM/QAM-signal Increasing of Information Reliability of Digital Systems with QAM/COFDM-Modulation Models of Information K-Channels with Memory