基于自适应动态面及控制分配的敏捷导弹自动驾驶仪设计

Agile Missile Autopilot Design via Adaptive Dynamic Surface Control and Control Allocation

根据自适应动态面控制理论和动态控制分配算法,提出了一种直接侧向力与气动力复合控制的敏捷型导弹自动驾驶仪设计方法。敏捷型导弹拥有侧喷发动机和舵机两套控制执行机构,为了提高两套执行机构共同作用的控制效果,导弹控制系统设计分为虚拟控制律设计和控制分配算法设计。考虑系统模型的不确定性和外界干扰的影响,结合动态面控制和自适应控制的思想设计了虚拟控制律,然后通过控制分配算法将虚拟控制律产生的控制量分配给实际执行机构。仿真结果表明,该方法设计的自动驾驶仪对过载的响应快速且平稳。跟踪过程中,侧喷发动机和舵机相互配合,发挥了两套执行机构共同作用的效果。

Based on adaptive dynamic surface control theory and dynamic control allocation algo-rithm ,an autopilot design method is proposed for agile missiles with direct lateral force and aerodynamic force compound control. Actuators employed in agile missiles including lateral jet engine and actuator. In order to improve the control efficiency of agile missile with dual actuators, the autopilot system design process is divided into virtual control law design and the control allocation algorithm design. To deal with the system model uncertainties and external disturbances,the virtual control law is designed via dynamic surface control method and adaptive control method. Then the virtual control signal is distributed by con-trol allocation method to the actual actuator. Simulation results show that missile autopilot system tracks the acceleration command fast and smoothly. In the tracking process, lateral jet engine cooperates with actuator,and the two actuators fully develop their actions.