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兵工学报 ›› 2025, Vol. 46 ›› Issue (S1): 250667-.doi: 10.12382/bgxb.2025.0667

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基于迭代学习的动目标多约束弹道成型制导方法

石忠佼1, 胡海洋1, 何镜2, 林时尧2,*()   

  1. 1 北京理工大学 空天科学与技术学院, 北京 100081
    2 中国兵器科学研究院, 北京 100089
  • 收稿日期:2025-07-17 上线日期:2025-11-06
  • 通讯作者:
  • 基金资助:
    国家自然科学基金项目(62103052)

An Iterative Learning-based Trajectory Shaping Guidance Method for Missile Attacking Moving Target under Multiple Constraints

SHI Zhongjiao1, HU Haiyang1, HE Jing2, LIN Shiyao2,*()   

  1. 1 School of Aerospace EngineeringBeijing Institute of Technology, Beijing 100081, China
    2 Chinese Academy of Ordnance Sciences, Beijing 100089, China
  • Received:2025-07-17 Online:2025-11-06

摘要:

针对二维场景中空地导弹攻击地面运动目标问题,提出一种考虑落角约束、落速约束及视场角约束的多项式制导律。基于多项式成型理论,将视线角构造成相对距离的多项式函数,利用落角约束等边界条件,得到多项式系数的代数关系式。针对落速约束要求,将未知的多项式系数设计为控制参数,采用迭代学习方法对其进行逐次更新,进而得到标称制导指令。考虑导引头存在的视场角边界限制,基于控制障碍函数方法建立安全集合并构建优化问题,对标称制导指令进行修正以保证视场角始终保持在约束边界内。通过数值仿真验证了所提出的制导律能够在保证命中目标的同时,还能满足落角约束、落速约束及视场角约束。

关键词: 落角约束, 落速约束, 视场角约束, 多项式成型, 控制障碍函数

Abstract:

A polynomial guidance law that takes into account the constraints on impact angle,impact speed and seeker’s field-of-view (FOV) is proposed for the issue of air-to-ground missile attacking the moving ground target in a two-dimensional scenario.Based on polynomial shaping theory,the line-of-sight (LOS) angle between the missile and the target is formulated as a polynomial function of the relative distance.An algebraic relationship for the polynomial coefficients is derived by using the boundary conditions such as the impact angle constraint.To address the impact speed constraint,the unknown polynomial coefficient is designed as a control parameter and is updated using an iterative learning method,thereby generating a nominal guidance command.Considering the limitation imposed by the FOV angle constraint of seeker,a safe set is established using the control barrier function method.An optimization problem is formulated to adjust the nominal guidance command,ensuring that the seeker’s FOV remains within the constrained boundary throughout the engagement.Numerical simulations demonstrate that the proposed guidance law can be used to guide the missile to the target while satisfying the constraints on impact angle,impact speed and seeker’s FOV.

Key words: impact angle constraint, impact speed constraint, field-of-view angle constraint, polynomial shaping, control barrier function