A.A. Kostoglotov1, A.S. Penkov2, V.P. Tavunov3
1,2 Don State Technical University (Rostov-on-Don, Russia)
3 Rostov-on-Don Scientific Research Institute of Radio Communications (Rostov-on-Don, Russia)
1kostoglotov@icloud.com, 2 pencha@mail.ru, 3 tavunov@mail.ru