I. I. Ivanov, G. I. Kuleshov, N. A. Koledin, V. N. Novikov, A. I. Okorotshkoveshov

V.V. Andreev - Ph.D.(Phys.-Math.), Associate Professor, Head of Department - Telecommunication Systems and Technologies?, Chuvash State University (Cheboksary). E-mail: andreev_vsevolod@mail.ru