基于最优化问题的混合再入制导方法  

Mixed guidance method for reentry vehicles based on optimization

作　　者：王俊波[1] 田源[1] 任章[1] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100191

出　　处：《北京航空航天大学学报》2010年第6期736-740,共5页Journal of Beijing University of Aeronautics and Astronautics

摘　　要：在深入研究机动再入飞行器标准轨道和预测制导方法的基础上,针对标准轨道和预测制导相结合的制导方法,分析了由预测制导指令延迟引起的误差,提出了误差补偿策略.根据最优化理论,设计了相关性能指标函数,提出新的预测制导算法.并结合标准轨道法,通过对有限几个特征点位置上引入预测制导,形成了一种基于最优化问题的混合制导方法.有效减小了预测制导指令的解算时间,进一步降低了落点误差.仿真结果表明,该方法既具有较强的抗干扰能力和较高的制导精度,又具有一定的工程实用价值.The error caused by the calculating time delay of predictive guidance was analyzed for the mixed guidance based on the reference-trajectory guidance and predictive guidance for reentry vehicles.The method of error compensation was put forward.By utilizing the optimization theory,performance index function was designed and a new predictive guidance method was proposed.The reference-trajectory guidance was combined with predictive guidance which was applied in some characteristic position in the reentry process.A mixed guidance method based on the optimization for the reentry vehicles was proposed,which decreased calculating time of predictive guidance to a satisfactory level and reduced deviation and disturbance further.The simulation results indicate the strong anti-interference capacity,high guidance precision and great practical value in engineering of this method.

关 键 词：再入飞行器 再入制导 最优化 预测制导 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]