基于快速落点预测的再入滑翔飞行器预测校正算法  

Prediction correction algorithm for reentry glide vehicle based on fast landing point prediction

作　　者：朱子巍 罗星宇 张琳[1] 韩晓阳 Zhu Ziwei;Luo Xingyu;Zhang Lin;Han Xiaoyang(Air Defense and Antimissile School,Air Force Engineering University,Xi'an 710051,China;Unit 93436 of the PLA,Beijing 102600,China;Aviation Engineering School,Air Force Engineering University,Xi'an 712035,China)

机构地区：[1]空军工程大学防空反导学院,西安710051 [2]中国人民解放军93436部队,北京102600 [3]空军工程大学航空工程学院,西安712035

出　　处：《战术导弹技术》2024年第5期130-138,共9页Tactical Missile Technology

摘　　要：针对再入滑翔飞行器制导的预测校正算法存在预测剩余航程积分时间长、迭代速度慢且预测落点波动等问题,提出一种基于快速落点预测的再入滑翔飞行器预测校正算法。通过建立飞行器飞行的可达域,分析不同初始状态各状态量与飞行器可达域关键参数的函数关系;建立了落点位置与初始状态的近似函数关系,使得落点预测位置变化连续,提高了计算速度;通过在不同的禁飞区条件下进行仿真,并与其他预测校正类算法进行对比。仿真结果表明,所提方法的轨迹生成速度更快,能够更准确地实现飞行器制导。Aiming at the problem of prediction and correction algorithm for guidance of reentry glide vehicle,such as long duration of remaining range integration,slow iteration speed and fluctuation of landing point,a prediction and correction algorithm for reentry glide vehicle based on fast landing point prediction is proposed.By establishing the reachable domain of aircraft flight,the functional relationship between each state quantity in different initial states and the key parameters in the reachable domain of aircraft are analyzed.The approximate function relationship between the position of the drop point and the initial state is established,which makes the change of the predicted position of the drop point continuous and improves the calculation speed.The simulation is carried out under different no-fly zone conditions and the results are compared with other prediction correction algorithms.Simulation results show that the trajectory generation speed of the proposed method is faster,and the aircraft guidance can be realized more accurately.

关 键 词：落点预测 再入滑翔飞行器 纵向制导 倾侧角 飞行可达域 预测校正 落点位置 

分 类 号：TJ760[兵器科学与技术—武器系统与运用工程]