基于改进Gauss伪谱法的高超声速飞行器航迹规划

针对使用传统Gauss伪谱法(GPM)求解航迹规划问题时计算复杂的问题,提出了基于两点间经纬度坐标变换的改进GPM高超声速飞行器滑翔段航迹规划方法。对经纬度坐标进行处理,以经纬度变换代替时域变换改进GPM,规划两点间的航迹。仿真结果表明,改进后的算法能够准确、高效地规划出一条合理的航迹,满足飞行约束条件。

Trajectory planning for hypersonic vehicle based on improved GPM

For the problem of complex calculation when using the traditional GPM to solve the problem of track planning,a trajectory planning method for improving the gliding section of GPM hypersonic vehicle was put forward based on latitude and longitude coordinate transformation between two points.Aiming at the shortcoming,normalizing the latitude and longitude coordinates,this paper utilizes latitude and longitude transformation instead of time domain transformation to improved GPM,and the improved algorithm is used to plan the trajectory.Simulation results show that the improved algorithm can accurately and efficiently plan a reasonable trajectory,which satisfies the flight constraints.