A.A. Feimov - Post-graduate Student, Engineer, JSC «All-Russia SRI of Radio Engineering» (Moscow). E-mail: afeimov@gmail.com E.P. Smirnov - Ph. D. (Eng.), Head of Sector, JSC «All-Russia SRI of Radio Engineering» (Moscow). E-mail: vornims@gmail.com P.E. Shimkin - Post-graduate Student, Engineer, JSC «All-Russia SRI of Radio Engineering» (Moscow). E-mail: shimkinpy@gmail.com