S. I. Artemov - Post-graduate Student, Department of Biotechnical Systems, Saint-Petersburg State Electrotechnical University «LETI» n. a. V. I. Ulyanov (Lenin). E-mail: thethingzero@mail.ru
Yu. I. Senkevich - Dr.Sc.(Eng.), Leading Research Scientist Saint-Petersburg. E-mail: senkevich@spiiras.nw.ru