A.V. Rabin1, A.A. Ovchinnikov2, S.V. Rabin3

1–3 FSAEI HE «St. Petersburg State University of Aerospace instrumentation» (SUAI) (St. Petersburg, Russia)
1 alexey.rabin@guap.ru, 2 mldoc@guap.ru, 3 rabinserge@gmail.com