Unmanned aerial vehicles(UAVs)have brought a threat to its integration into the national airspace system,and the risk assessment of its integrated operation has attracted increasing attention.Firstly,this paper sorts out the development status of the integrated operation of manned aircraft(MA)and UAV,from the perspective of risk modeling,summarizes the risk modeling factors such as aerial parameters,navigation system and collision avoidance system.Then,according to the characteristics of UAV operation in our country,the operation scenarios of UAV system is inducted,the risk evaluation index system based on AHP(analytic hierarchy process)is constrated,and the UAV operation safety objectives suitable for our country are put forward.Finally,the challenges faced by the current risk assessment of the integrated operation of MA and UAV are analyzed.
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