S.V. Dvornikov1, A.R. Bestugin2, S.S. Dvornikov3, I.A. Kirshina4

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

1,3 Marshal of the Soviet Union S.M. Budyonny Military Academy of Communications (St. Petersburg, Russia)

1 practicdsv@yandex.ru; 2 fresguap@mail.ru; 3 dvornic92@mail.ru; 4 ikirshina@mail.ru