A.A. Belov – Leading Engineer, 

Higher School of Applied Physics and Space Technologies of Peter The Great St. Petersburg Polytechnic University E-mail: radar@radio.rphf.spbstu.ru

K.V. Greshnevikov – Ph.D.(Phys.-Math.), Associate Professor, 

Higher School of Applied Physics and Space Technologies of Peter The Great St. Petersburg Polytechnic University E-mail: kgreshnevikov@yandex.ru

G.P. Zhabko – Senior Lecturer, 

Higher School of Applied Physics and Space Technologies of Peter The Great St. Petersburg Polytechnic University E-mail: g_zhabko@mail.ru

S.A. Shumailova – Senior Lecturer, 

Higher School of Applied Physics and Space Technologies of Peter The Great St. Petersburg Polytechnic University E-mail: sshumailova@gmail.com