S.A. Nenashev1, A.R. Bestugin2, M.V. Gamov3, I.R. Kirshina4, V.A. Nenashev5

1,2,4,5 St. Petersburg State University of Aerospace Instrument Engineering (St. Petersburg, Russia)

3 Military Academy of Aerospace Defense named after Marshal of the Soviet Union G.K. Zhukov (Tver, Russia)

1 nenashev_sergey178@mail.ru; 2 fresguap@mail.ru; 3 gamov.m.v@bk.ru; 4 ikirshina@mail.ru;5 nenashev.va@yandex.ru