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I.V. Sivchek - Post-graduate Student, St. Petersburg State Polytechnical University. E-mail: cotgreat@gmail.com
V.A. Sorotsky - Dr. Sc. (Eng.), Head of Department, St. Petersburg State Polytechnical University. E-mail: sorotsky@mail.spbstu.ru
V.A. Sorotsky - Dr. Sc. (Eng.), Head of Department, St. Petersburg State Polytechnical University. E-mail: sorotsky@mail.spbstu.ru
A.Ya. Sergeev - Ph. D. (Eng.), Senior Research Scientist, Associate Professor, Department «Radio Engineering and Telecommunication Systems», Peter The Great St.Petersburg Polytechnic University
E-mail: acsergeev@yandex.ru