O.V. Goryachkin - Dr. Sc. (Eng.), Associate Professor, Head of Department «Radio Engineering Theory and Communication», Volga State University of Telecommunications and Informatics (Samara) D.V. Sukhanov - Senior Lecturer, Department «Radio Engineering Theory and Communication», Volga State University of Telecommunications and Informatics (Samara) E-mail: dms_cyx@mail.ru