基于遗传规划的导弹自适应控制方法研究  

Research on adaptive control method of missile based on genetic programming

作　　者：廉浩伟 冯琦[1] 刘超 赵鸿森 LIAN Hao-wei;FENG Qi;LIU Chao;ZHAO Hong-sen(School of Electronics and Information, Northwestern Polytechnic University, Xi＇an 710072, China;Aeronautical Science and Technology Key Laboratory of Flight Simulation, Xi＇ an 710089, China)

机构地区：[1]西北工业大学电子信息学院,陕西西安710072 [2]飞行仿真航空科技重点实验室,陕西西安710089

出　　处：《飞行力学》2018年第2期44-47,52,共5页Flight Dynamics

摘　　要：为改善PID控制对强非线性导弹系统的控制效果,提出了一种采用遗传规划映射的导弹自适应控制方法。首先建立PID控制器结构,随后充分利用遗传规划映射关系清晰、非线性拟合能力强的特点,采用飞行状态参数和最优控制参数作为输入和输出的样本数据进行离线学习,获得从弹体飞行状态参数到PID控制参数的直观函数关系,最终可实现控制参数的在线自适应整定。仿真结果表明,该方法对导弹系统参数的非线性变化具有很强的适应性,可以起到稳定的控制效果。In order to improve the control effect of the PID method on the non-linear missile system,an adaptive control method based on genetic programming（GP）is proposed.Firstly,the structure of the PID controller is established,and the GP algorithm is applied owing to its characteristics of clear mapping relationship and strong non-linear fitting ability.By using the flight state parameters and optimal control parameters as sample data of input and output respectively,the intuitive function relation from the missile flight state parameters to the PID control parameter is obtained,thus the online adaptive setting of control parameters can be realized finally.The simulation results show that the proposed method has a strong adaptability to the non-linear variation of missile system parameters and can play a stable control effect.

关 键 词：PID控制 自适应控制 遗传规划 非线性系统 

分 类 号：TJ765.2[兵器科学与技术—武器系统与运用工程]