D.Yu. Tarabrin - Ph. D. (Eng.), Senior Research Scientist, Ryazan State Radio Engineering University. E-mail: tarabrin-dmitriy@mail.ru A.A. Trubitsyn - Dr. Sc. (Phys.-Math.), Professor, Ryazan State Radio Engineering University. E-mail: assur@bk.ru S.B. Bimurzaev - Dr. Sc. (Phys.-Math.), Professor, Almaty University of Power Engineering & Telecommunications. E-mail: bimurzaev@mail.ru