弹道导弹总体参数两阶段快速优化方法
A two-stage rapid optimization method for the overall parameters of ballistic missiles
赖灿辉 1雷刚 1任乐亮 1罗炜 1李云舒1
作者信息
- 1. 火箭军工程大学,陕西西安 710025
- 折叠
摘要
为实现弹道导弹总体参数快速优化,根据弹道导弹被动段弹道与椭圆弹道之间偏差为小量的特点,建立了一种基于椭圆弹道和精确弹道的两阶段优化模型,有效平衡了计算复杂度与优化精度的矛盾.在弹道导弹总体参数建模基础上,将该问题抽象为最大射程约束下最小起飞质量的参数快速优化问题.为加快模型优化进程,第一阶段优化以椭圆弹道代替精确积分弹道,采用粒子群算法进行全局搜索求得准最优解;第二阶段以第一阶段求得的准最优解作为初始解,在此基础上进行接力局部寻优并对椭圆弹道进行误差修正.仿真结果表明,该方法在保证优化效果的基础上,显著提高了优化效率,具有一定的工程应用价值.
Abstract
To address the problem of how to balance the computational complexity and accuracy of the overall parameter optimization for ballistic missiles,a two-stage optimization model based on el-liptical trajectory theory and precise trajectory was established,taking advantage of the small devia-tion between the passive phase trajectory and the elliptical trajectory.Based on the modelling of the overall parameters of ballistic missiles,this problem was abstracted as a parameter fast optimization problem with minimum launch mass under the maximum range constraint.In order to accelerate the optimization speed,the elliptical trajectory was used instead of the precise trajectory in the first stage of optimization,and the particle swarm optimization algorithm was used for the global search to ob-tain quasi-optimal solutions.Then,the quasi-optimal solution was used as the initial solution in the second stage of optimization,in which the error caused by the elliptical trajectory was corrected.The simulation results show that the proposed method significantly improves the optimization speed while ensuring the optimization accuracy,and has a certain engineering application value.
关键词
弹道导弹/椭圆弹道/总体参数/粒子群Key words
ballistic missiles/elliptical trajectory/overall parameters/particle swarm引用本文复制引用
出版年
2024
NETL
NSTL
万方数据