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兵工学报 ›› 2021, Vol. 42 ›› Issue (12): 2617-2625.doi: 10.3969/j.issn.1000-1093.2021.12.009

• 论文 • 上一篇    下一篇

拦截弹中制导弹道在线快速规划方法

李万礼1, 李炯2, 李明杰1   

  1. (1.空军工程大学 研究生院, 陕西 西安 710051;2.空军工程大学 防空反导学院, 陕西 西安 710051)
  • 发布日期:2022-01-15
  • 通讯作者: 李炯(1979—),男,副教授,博士生导师 E-mail:gracefuloo1@126.com
  • 作者简介:李万礼(1997—),男,硕士研究生。E-mail:liwl170@163.com
  • 基金资助:
    国家自然科学基金项目(61773398)

On-line Rapid Planning Method for Interceptor Missile Midcourse Guidance Trajectory

LI Wanli1, LI Jiong2, LI Mingjie1   

  1. (1.Graduate College,Air Force Engineering University,Xi'an 710051,Shaanxi,China; 2.Air and Missile Defense College,Air Force Engineering University,Xi'an 710051,Shaanxi,China)
  • Published:2022-01-15

摘要: 针对满足多约束条件的拦截弹中制导弹道在线快速规划问题,提出一种基于虚拟域动态逆的在线弹道规划算法。引入虚拟因子,将离散状态变量从时间域转入虚拟域中,并基于动态逆思想,利用虚拟弧长求得边界条件的高阶导数,提高计算效率;构建过程约束的惩罚函数,结合性能指标进行规划,使弹道能够满足时间域上的多约束条件。结合该算法提出目标信息更新后的在线重新规划策略。仿真结果表明,基于虚拟域动态逆的在线弹道规划算法虽然计算精度较弱,但是能够快速生成满足多约束条件的参考弹道,具有很好的实时性与鲁棒性,适用于求解弹道在线快速规划问题。

关键词: 拦截弹, 中制导弹道, 多约束条件, 在线快速规划, 虚拟域动态逆

Abstract: An online trajectory planning algorithm based on dynamic inversion in the virtual domain(IDVD) is proposed for the online rapid planning of midcourse guidance trajectory of interceptor missile that meets multiple constraints. The virtual factors are introduced to transfer the discrete state variables from the time domain to the virtual domain. Based on the idea of dynamic inversion,the virtual arc length is used to obtain the high-order derivative of the boundary conditions,which improves the computational efficiency. A penalty function for process constraints is constructed to plan the guidance trajectory with the performance indicators so that the trajectory can meet multiple constraints in the time domain. Finally,an on-line re-planning strategy after updating the target information is presented based on the proposed algorithm.The simulated results show that, although the proposed algorithm can quickly generate a reference trajectory that satisfies multiple constraints,it has good real-time performance and robustness,and is suitable for solving on-line rapid trajectory planning problems.

Key words: interceptor, midcourseguidancetrajectory, multipleconstraint, on-linerapidplanning, inversedynamicsinthevirtualdomain

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