V.G. Kartashevsky1, E.S. Semenov2, V.A. Cymbal3

1 Povolgsky State University of Telecommunications and Informatics (Samara, Russia)

2 Volgograd State University (Volgograd, Russia)

3 Branch of the Military Academy of the RVSN named after Peter the Great (Serpukhov, Russia)

1 vgkartash@ya.ru; 2 essemenov@mail.ru; 3 tsimbalva@mail.ru