TY JOUR TI THE METHOD OF CALCULATION OF ENERGY PARAMETERSOF THE SERVICE AREA OF THE RADIO ACCESS STATION IS PLACED ON THE UNMANNED AERIAL VEHICLE KW unmanned aerial vehicle KW relay signal KW service area of base station KW mobile station KW radio access JO Problems of risk management in the technosphere AU Nesterenko, A.G. AU Galimov, A.F. PY 2017 IS 2017 PB Saint-Petersburg University of State Fire Service of Emercom of Russia