S.V. Savelkaev - Dr.Sc. (Eng.), Professor, Siberian State University of Geosystems and Technologies. E-mail: sergei.savelkaev@yandex.ru V.А. Litovchenko - Head of Educational Laboratory, Novosibirsk Higher Military Command School. E-mail: litovchienko_vladimir@mail.ru

S.A. Novikov1, M.B. Nikiforov2, O.V. Melnik3

1–3 FSBEI HE Ryazan State Radio Engineering University named after V.F. Utkin (Ryazan, Russia)

1 noviserg96@gmail.com, 3 omela111@yandex.ru