V.S. Gurov - Dr. Sc. (Eng.), Professor, Head of the Department of Industrial Electronics, Rector of Ryazan State Radio Engineering University. E-mail: gurovvs@mail.ru
P.I. Kuksa - Student, Department General and Experimental Physics, Ryazan State Radio Engineering University. E-mail: kuksa_p@mail.ru

V.M. Sveshnikov - Dr.Sc. (Phys.-Math.), Institute of Computational Mathematics and Mathematical Geophysics, Siberian Branch of the Russian Academy of Sciences; Professor, Novosibirsk State University. Е-mail: victor@lapasrv.sscc.ru