E. V. Borisenko - Deputy Chief Engineer, Head of the Scientific-Research Center, JSC «Kaluga Research Institute of Telemechanical Devices». E-mail: kniitmu@kaluga.net
V. V. Kvashennikov - Dr.Sc. (Eng.), Senior Research Scientist, Head of Group, JSC «Kaluga Research Institute of Telemechanical Devices». E-mail: kniitmu@kaluga.net

G.M. Tamrazian - Post-graduate Student, Department of Telecommunications, Ulyanovsk State Technical University. E-mail: tamrazz@bk.ru