S.N. Kirillov - Dr. Sc. (Eng.), Professor, Ryazan State Radio Engineering University. E-mail: kirillov.lab@mail.ru V.M. Berdnikov - Ph. D. (Eng.), Associate Professor, Ryazan State Radio Engineering University. E-mail: bvm1986@mail.ru I.V. Kostkin - Ph. D. (Eng.), Associate Professor, Ryazan State Radio Engineering University. E-mail: kost_vk@mail.ru E.V. Akopov - Engineer of Department, Ryazan State Radio Engineering University. E-mail: akop78195@gmail.com A.V. Elyutin - Engineer of Department, Ryazan State Radio Engineering University. E-mail: aleksei_elyutin@mail.ru