拦截弹中制导弹道在线快速规划方法  

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

作　　者：李万礼 李炯[2] 李明杰 LI Wanli;LI Jiong;LI Mingjie(Graduate College,Air Force Engineering University,Xi'an 710051,Shaanxi,China;Air and Missile Defense College,Air Force Engineering University,Xi'an 710051,Shaanxi,China)

机构地区：[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

出　　处：《兵工学报》2021年第12期2617-2625,共9页Acta Armamentarii

基　　金：国家自然科学基金项目(61773398)。

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。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.

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 

分 类 号：TJ765.31[兵器科学与技术—武器系统与运用工程]