基于航程补偿的高超声速飞行器轨迹快速规划

Rapid Trajectory Planning for Hypersonic Vehicle Based on Flight Range Compensation

高超声速滑翔飞行器具有再入走廊狭窄、机动能力强、再入制导实时性要求高的特点。针对高超声速滑翔飞行器在线轨迹快速规划的问题,将再入走廊约束转化为倾侧角约束,通过对倾侧角曲线的确定进行纵向和侧向轨迹的规划,并且在进行纵向轨迹规划时,对航程估计公式进行了精确化处理;同时针对传统倾侧角曲线确定方法的不足,应用初始航程补偿校正的方法改进。大量数值仿真结果表明:改进方法可实现轨迹在线精确规划,实时性较强。

Hypersonic Glide Vehicle has the narrow reentry corridor, strong maneuverability and high reel -time demand for reentry guidance. Direct at hypersonic glide vehicle on - board trajectory rapid planning problem, the transformation from reentry corridor to bank angle constraint is studied. Through the determination of bank angle file, the longitudinal and lateral trajectory is planned, and in the longitudinal trajectory planning, the flight range estima- tion formula is disposed accurately. Direct at the shortage of traditional method to confirm bank angle file, the initial flight range is compensated and revised. Numerical simulation results indicate that the modified method can plan on -board trajectory accurately in less than 1 second, and has strong effectiveness.