V.A. Filin1, A.N. Golovin2, V.S. Smirnov3, V.A. Yurova4

1–4 The Bonch-Bruevich St. Petersburg State University of Telecommunications (St. Petersburg, Russia)

4 North-West State Medical University named after I.I. Mechnikov (St. Petersburg, Russia)

1 filin_vladimir@mail.ru; 2 ece-ffp@sut.ru; 3 cathseugut@yandex.ru; 4 v.a.yurova@sut.ru