基于数字地图的亚音速飞行器最优地形跟随

Optimal terrain following for subsonic aircraft based on digital map

摘要:

针对真实高山地形设计了一套地形跟随系统。首先,根据数字地图结合航迹规划算法生成参考航迹。接着设计了一个基于滚动时域优化的航迹控制器,用于跟踪航迹、稳定速度并处理约束,将预测时域内的航迹点作为参考输入,通过最小化跟踪误差以及滚动优化实时求解控制量。仿真结果表明,与基于适应角导引的地形跟随系统相比,本文的方法具有更好的性能,能够满足亚音速飞行器地形跟随任务需求。

Abstract:

This paper designs a terrain-following system based on the real mountain terrain. First, the reference path is generated using the digital map and the path planning algorithm. Then a controller based on receding horizon optimization is designed for simultaneous path following, speed stabilization and constraint handling. The waypoints in the predictive horizon are used as reference input, and the control input is solved in real time by minimizing the tracking error. The simulation results show that compared with the terrain following system based on the adaptive angle guidance, the method in this paper has better performance and can meet the requirements of the terrain following task for subsonic aircraft.