A.V. Kraychko – – Dr.Sc. (Eng.), Professor,

Department of Radio Engineering and Optoelectronic Complexes,

Saint Petersburg State University of Aerospace Instrumentation

E-mail: kaf21@guap.ru

M.B. Ryzhikov – Ph.D. (Eng.), Associate Professor,

Department of Radio Engineering and Optoelectronic Complexes,

Saint Petersburg State University of Aerospace Instrumentation

E-mail: maxrmb@yandex.ru