L.V. Zhorina - Ph.D. (Phys.-Math.), Associate Professor, Department of Biomedical Techniques, Bauman Moscow State Technical University E-mail: larisa7777@li.ru D.V. Spirin - Engineer, Kotel'nikov Institute of Radio-engineering and Electronics (IRE) of Russian Academy of Sciences (Moscow) E-mail: info@irtis.ru M.I. Shcherbakov - Senior Research Scientist, Kotel'nikov Institute of Radio-engineering and Electronics (IRE) of Russian Academy of Sciences (Moscow) E-mail: info@irtis.ru