A.V. Zhukova - Post-graduate Student, Ulyanovsk State Technical University E-mail: donskaya.alena@mail.ru S.V. Voronov - Ph. D. (Eng.), Associate Professor, Department «Radio Engineering», Ulyanovsk State Technical University E-mail: s.voronov@ulstu.ru

A.A. Skripkin1, V.A. Shcherbachev2

1,2 JSC «All-Russian Scientific Research Institute «Gradient» (Rostov-on-Don, Russia)

1 alexyscrypkin@rostov.ru, 2 vove64@mail.ru