E.N. Boldenkov - Ph. D. (Eng.), Associate Professor, Radio System Department, «National Research University «MPEI» (Moscow). E-mail: boldenkoven@mail.ru I.V. Lipa - Post-graduate Student, Radio System Department, «National Research University «MPEI» (Moscow). E-mail: ivan1502@mail.ru D.V. Dneprov - Post-graduate Student, Radio System Department, «National Research University «MPEI» (Moscow). E-mail: dneprov_dv@mail.ru