Flight conflict detection of large fixed-wing UAV in joint airspace

To resolve the issue of cooperative operation between large fixed wing Unmanned Aerial Vehicle (UAV) and civil aviation manned transport aircraft, preprocessing of large fixed wing UAV flight data that oriented to spatial dimension will be carried out to further complete the mathematical description and sort out the characteristics of the flight data of the digital twins, analyze the track protection zone of flight program recommended by International Civil Aviation Organization (ICAO) and systematic errors such as collision risks, then develop a flight conflict detection method applied to cooperative operation in joint airspace and draw certain quantitative conclusion. According to the simulation experiments and calculation results, it is shown that the use of the multi-element composite strategy (MCS) can achieve the flight conflict assessment of the joint airspace cooperative operation, and according to the assessment results combined with the implementation environment of the flight mission, it can be concluded that the density of the airspace is within the range of the systematic error standard stipulated by the ICAO, so as to complete the quantitative assessment of the safety risk of the cooperative operation and the planning scheme of the joint airspace Preliminary formulation, to provide support for the development of intelligent logistics.