A.V. Kinarskiy - Post-graduate Student, Dept. of Electronics and Biomedical Technology, Ufa State Aviation Technical University. E-mail: kinarskiy@yandex.ru S.V. Zhernakov - Dr.Sci. (Eng.), Professor, Head, Dept. of Electronics and Biomedical Technology, Ufa State Aviation Technical University. E-mail: zhsviit@mail.ru