3D Track Planning For Airline Operation

With the airlines to expand the scale of operations,accelerate the development of energy-saving emission is an important means to improve the flight safety margin and reduce operating costs.Route planning is an air highway for aircraft operation.It is a link between airports and airports.The quality of track design directly affects flight normality and operation economic cost.Under the premise of PBN navigation technology,the 3D track which meets the security and economy is planned.First,according to the characteristics of the obstacle area in the airspace,the obstacle area is classified and the space model is established.Based on the obstacle area,the MAKLIN K line is used to divide the space and provide the solution space for the analysis of the 3D track planning.Secondly,the 3D track planning is divided into two parts: the horizontal track planning and the vertical track planning.The purpose of horizontal track is to meet the shortest path,ensure the most optimal economy of horizontal track,while satisfying the constraints of leg turning and the lateral leg safety interval;vertical track is designed to meet the flight profile close to the theoretical optimal profile to ensure optimal vertical track economy,at the same time to meet the minimum safe altitude constraint.Besides,the horizontal route planning for dynamic obstacle area opening and closing is proposed,and the vertical route planning method with dynamic restriction height and control factors is also put forward.Third,the idea and basic principle of ant colony algorithm are briefly introduced,and the program realization method of 3D track planning using ant colony algorithm is introduced in detail.Finally,taking the ZBTJ-ZGGG route as an example,the MATLAB tool is used to verify the 3D track planning method.The experiment shows that the method has high search efficiency and can plan the 3D track which meets the security economy.It has high application value.