S.B. Makarov - Dr. Sc. (Eng.), Professor, Head of Institute of Physics, Nanotechnology and Telecommunications, St. Petersburg State Polytechnical University. E-mail: makarov@cee.spbstu.ru
S.V. Zavyalov - Post-graduate Student, St. Petersburg State Polytechnical University. E-mail: sz5@mail.ru

S.B. Makarov - Dr.Sc. (Eng.), Professor, Director, St.Petersburg State Polytechnic University, Institute of Physics, Nanotechnology and Telecommunications E-mail: makarov@cee.spbstu.ru S.V. Zavyalov - Post-graduate, Department «Radio engineering for securing information», St.Petersburg State Polytechnic University, Institute of Physics, Nanotechnology and Telecommunications E-mail: sz5@mail.ru