Trajectory Optimization And Control Technology Of Civil Aviation Vehicle

The rapid development of China's economy has led to the rapid development of civil aviation industry.It is of great significance to promote the development of high and new technology,to ensure the transportation of domestic and foreign countries,and to enhance the national military strength..The trajectory optimization and tracking control technology is the difficult technology of flight management system.This paper studies the level of civil aircraft route planning and trajectory optimization problems on the vertical section,climbing and descending trajectory optimization,trajectory tracking problems such as cruise level planning and wind disturbance are a series of research work.Considering the passenger comfort overload and civil flight rules,considering the flight fuel cost and time cost,the optimal flight trajectory is designed in order to save time and fuel economy.Because the genetic algorithm is easy to fall into the local optimal solution,this paper modified the population crossover mutation probability according to the population genetic convergence degree,and used the adaptive genetic algorithm to plan the climb and descent trajectory of the aircraft.The algorithm improved the performance of the flight path optimization algorithm.Finally,a comparative analysis is made on the optimization of climbing trajectories at different end flight states.Aiming at the cruise route planning problem,the problem of route planning in a variety of static threat zones(no-flight zones and radar detection zones)is discussed.The problem of dynamic change in typhoon dynamic region is considered,The algorithm is based on the off-line planning of the trajectory,and the D * dynamic search algorithm is used to carry out the local on-line trajectory re-planning to realize the dynamic track optimization strategy in complex flight environment.Tracking is the key technology of precise aircraft flight tracking control method,internal and external interference factors and track are studied in this paper.The cruise phase,then the constant wind gust,track under the interference tracking problem,the design of adaptive tracking control algorithm of synovial cruise segment has been planning flight path tracking control,the simulation results show that the this tracking algorithm has good tracking accuracy and anti-interference performance in the tracking process.The research work of this paper can provide a theoretical basis for the trajectory optimization and tracking of civil aviation aircraft.