The Trajectory Optimization And Simulation Of The Attack UAV

The development of unmanned aerial vehicle (UAV) is one of those important aspects of world's weapons. The attack UAV gets a worldwide interest for its distinctive advantages. This paper aims to the problem of trajectory Optimization of UAV, which includes the optimal climb trajectory, the optimal cruise trajectory and the optimal loiter trajectory. The optimal trajectory with practice value is given, after studying and simulating and analyzing. The main contents of this paper are as follows:1. Set up the nonlinear model of the Attack UAV.2. Design the optimal climb trajectory of the Attack UAV in the vertical plane using nonlinear programming. The calculation result states that the final altitude predetermined can be climbed fast and there are beter the profit in performance according to the climbing trajectory optimized.3. Design the optimal cruise trajectory of the Attack UAV in the horizontal plane using heuristic search algorithm. A fuzzy changed-weight method is used in order to get optimal trajectory. The method is efficient to improve the performance in flight.4. Design the optimal loiter trajectory of the Attack UAV in the horizontal plane using maximum principle and desige the loiter strategy of the Attack UAV using dynamic programming algorithm and game theory.5. To this designed the optimal trajectory, simulations are completed respectively, and results are analyzed.The results of simulation for the optimal trajectory of attack UAV show that the optimal trajectory has met the demand. All these testify that optimal methods are effective and feasible.