A. L. Priorov - Dr.Sc. (Eng.), Associate Professor, P.G. Demidov Yaroslavl State University. E-mail: andcat@yandex.ru
E. E. Tsubanov - Lecturer, Department of Radio Engineering systems, a branch of the Mozhajskij Military Space Academy (Yaroslavl). E-mail: tzubаnoff.еvgeny@уаndex.ru