基于遗传算法的高速飞行器模糊控制律设计

以吸气式高超声速飞行器X-43A的纵向通道为控制对象,针对其6自由度非线性模型设计了飞行控制系统.飞行控制系统包括2个回路,制导回路采用PD控制器,控制回路应用模糊控制器.制导回路负责跟踪轨迹,控制回路执行制导指令.基于遗传算法实现了PD反馈参数和模糊控制规则的自动优化,无需先验知识和训练数据.在控制飞行器轨迹、姿态和推力时,综合考虑非线性动态特性、不确定性和约束.仿真表明,该方法可以同时满足飞行控制系统鲁棒性和优化过程收敛性的要求.

Fuzzy control law design of hypersonic vehicle based on genetic algorithm

Considering the pitching channel of air breathing hypersonic vehicle X-43A as plant,flight control system was designed according to the 6 degree of freedom nonlinear model.The flight control system includes two loops,of which the structure is conventional mode.The guidance loop is a PD controller,while the control loop is composed of two fuzzy logic controllers.The guidance loop leads the vehicle to follow trajectory,when the control loop follows guidance command.Based on genetic algorithm,the optimization ...