T.A. Shayhulov - Student, Bauman Moscow State Technical University; Engineer, Kotelnikiv IRE RAS E-mail: shcaihulov@hitech.cplire.ru V.A. Shahunov - Ph.D. (Eng.), Chief Research Scientist, Kotelnikov IRE RAS (Moscow) V.V. Demidov - Dr.Sc. (Phys.-Math.), Leading Research Scientist, Kotelnikov IRE RAS (Moscow) G.A. Ovsyannikov - Dr.Sc. (Phys.-Math.), Head of Laboratory, Kotelnikov IRE RAS (Moscow)