M.Yu. Zakharchenko – Ph.D.(Eng.), Associate Professor, Head of Departament,

Yuri Gagarin State Technical University of Saratov

E-mail: ppk_spo@sstu.ru

Yu.F. Zakharchenko – Ph.D.(Phys.-Math.), Senior Research Scientist,  Saratov branch of the Kotel’nikov IRE of RAS

E-mail: zaharchenko@mail.ru

K.M. Al Ali Abdul’ – Student, 

Yuri Gagarin State Technical University of Saratov E-mail: ppk_spo@sstu.ru