基于A算法的终端区离场航线设计研究

Research on Departure Route Design of Terminal Area Based on A^(*) Algorithm

地形复杂度在飞行程序设计中非常关键,地势高低变化对于程序设计前期的净空评估、以及后续的超障处理都很重要,特别是地形复杂机场,高大山体障碍物会对飞机飞行安全产生威胁。基于MATLAB编程通过双三次B样条插值算法对复杂地形机场仿真并进行后续飞行程序设计。通过观测整个地势状态,设置预选航路点,采用改进的A^(*)算法,设计好爬升或下降梯度,可确定出进离场航线,针对云南普洱机场的实际案例进行研究,仿真并设计普洱机场的离场程序,再用空客性能软件仿真每条离场程序,对比爬升性能,选取最优的离场程序,并与该机场公布的航图进行对比,结果表明,采用的算法具有可行性。

Terrain complexity is very important in the flight procedures design.The height changing of terrain is very important for the clearance evaluation in the early stage of the procedures design and the subsequent obstacle handling.Especially in the complex terrain airport,the high mountainous obstacles are likely to pose a threat to the flight safety of the aircraft.In this study,the simulation of complex terrain airport is carried out by bi cubic B spline interpolation algorithm based on MATLAB programming,and design the subsequent flight program.By observing the whole terrain state,setting the preselected waypoint,and finally use the improved A^(*) algorithm,designing the climb or descent gradient,the approach and departure procedures can be determined.In this study,the actual case of Yunnan Puer airport is used to study,simulate and design the departure procedures of Puer airport,and then use the Airbus performance software to simulate each departure procedures,compare the climbing performance.The results show that the algorithm used in this study has the feasibility of automatic flight procedures design for complex terrain airport.