V.S. Gurov - Dr. Sc. (Eng.), Professor, Rector of Ryazan State Radio Engineering University. E-mail: gurovvs@mail.ru A.A. Trubitsyn - Dr. Sc. (Phys.-Math.), Professor, Ryazan State Radio Engineering University. E-mail: assur@bk.ru E.Yu. Grachev - Ph. D. (Eng.), Associate Professor, Ryazan State Radio Engineering University. E-mail: monopol_rus@mail.ru