基于禁飞区规避的高超声速飞行器再入制导律设计

Design of Reentry Guidance Law of Hypersonic Vehicle Based on No-Fly Zone Avoidance

为解决复杂环境下高超声速飞行器再入制导律设计问题,针对再入过程中地形、地缘政治、防空拦截等禁飞区域规避需求,提出一种禁飞区规避再入制导律设计方法。纵向制导律基于再入飞行走廊方法实现了快速轨迹规划;横侧向制导律采用视线角偏差走廊实现了禁飞区规避与目标跟踪,并根据射程误差设计了在线预测校正制导模块。通过数值仿真验证了纵向、横侧向制导律的有效性,仿真结果表明能够满足过程约束与禁飞区约束。

In order to solve the reentry guidance law design problem of hypersonic vehicle in complex environment,a design method of no-fly zone avoidance reentry guidance law is proposed aiming at the avoidance requirements of no-fly zone such as terrain,geopolitics and air defense interception in reentry process.The longitudinal guidance law realizes fast trajectory planning based on reentry flight corridor method.The lateral guidance law adopts the line-of-sight angle deviation corridor to realize the no-fly zone avoidance and target tracking,and the online prediction correction guidance module is designed according to the range error.The effectiveness of the longitudinal and lateral guidance laws is verified by numerical simulation.The simulation results show that the process constraint and the no-fly zone constraint can be satisfied.