D.F. Zaitsev - Dr. Sc. (Eng.), Main Designer, Moscow State University of Information Technologies, Radio Engineering and Electronics (MIREA), Head of Laboratory, JSC «CRET». E-mail: zaysev@yandex.ru V.P. Kortnev - Ph. D. (Eng.), Senior Research Scientist, JSC «CRET» D.V. Mordasov - Junior Research Scientist, JSC «CRET». E-mail: danmordasov@gmail.com