火箭上面级机动弹道重规划方法研究

Research on the Maneuver Trajectory Planning Method for the Upper Stage of Rocket

针对火箭上面级机动弹道重规划问题,提出一种基于改进微分进化算法的弹道规划方法。首先,将弹道规划问题转化为多约束轨道优化问题,其次,设计多约束优化模型,满足卫星半长轴及轨道倾角的工程需求,最后,通过改进的微分进化算法求解最优解。通过某次火箭上面级弹道规划数据分析,该算法能快速规划弹道,入轨点精度满足要求。

A trajectory planning method based on improved differential evolution algorithm is proposed to solve the problem of maneuvering trajectory re planning for the upper stage of rocket. Firstly, the trajectory planning problem is transformed into a multi constrained trajectory optimization problem. Secondly, a multi constrained optimization model is designed to meet the engineering requirements of the semi-major axis and the inclination of orbit. Finally, the improved differential evolution algorithm is used to solve the optimal solution. By analyzing the trajectory planning data of a certain rocket upper stage, the algorithm can quickly plan the trajectory, and the accuracy of the trajectory meets the requirements.