A.R. Bestugin1, M.B. Ryzhikov2, Yu.A. Novikova3, I.A. Kirshina4

1-4 Saint-Petersburg State University of Aerospace Instrumentation (Saint-Petersburg, Russia)

fresguap@mail.ru, maxrmb@yandex.ru, Nov-Jliana@yandex.ru, zlata@aanet.ru