S.A. Osokin - Post-graduate Student, Moscow Institute of Physics and Technology; Engineer, Kotelnikov IRE RAS (Moscow). E-mail: osokinserg@gmail.com Yu.N. Barabanenkov - Dr.Sc. (Phys. Math.), Chief Research Scientist, Kotelnikov IRE RAS (Moscow) D.V. Kalyabin - Post-graduate Student, Moscow Institute of Physics and Technology; Trainee Researcher, Kotelnikov IRE RAS (Moscow) S.A. Nikitov - Dr.Sc. (Phys. Math.), Director of Kotelnikov IRE RAS (Moscow)