[3] European Aviation Safety Agency.Policy for Unmanned Aerial Vehicle (UAV) certification: A-NPA No.16-2005[R].Kln:European Aviation Safety Agency2005.
[4] WEIBEL R E HANSMAN R J.Safety considerations for operation of different classes of UAVs in the NAS[R].Chicago: AIAA 4th Aviation Technology Integration and Operations (ATIO) Forum 2004.
[5] DALAMAGKIDIS K VALAVANIS K P PIEGL L A.Evaluating the risk of unmanned aircraft ground impacts[C]//The 16th Mediterranean Conference on Control and Automation2008:709-716.
[8] ZHANG X JLIU YZHANG Yet al.Safety assessment and risk estimation for unmanned aerial vehicles operating in national airspace system[J].Journal of Advanced Transportation20182018:1-11.
[9] European Aviation Safety Agency.Policy statement airworthiness certification of unmanned aircraft systems (UAS): E.Y013-01[R].Kln:European Aviation Safety Agency 2009.
[10] GUGLIERI G RISTORTO G.Safety assessment for light remotely piloted aircraft systems[C]//International Conference on Air Transport 2016: 1-7.