直接力/气动力复合控制导弹鲁棒驾驶仪设计

Robustness autopilot design for compound controller missile by using aerodynamics/reaction-jet

针对防空导弹性能问题,为了有效抑制侧向喷流干扰效应的影响,提高操纵效率和快速响应性,提出了基于L2增益理论进行了直接力/气动力复合控制导弹的导弹自动驾驶仪设计方法。根据L2增益的标准设计线性系统的L2增益设计思想,给出基于代数Riccati方程的求解方法。按直接力/气动力复合控制导弹的法向过载自动驾驶仪结构给出系统的状态空间,将侧向喷流干扰效应作有界干扰,利用全维状态反馈将自动驾驶仪设计问题转换成一个L2增益的标准设计问题,并进行了仿真。结果表明设计的自动驾驶仪指令跟踪精度高,鲁棒性强,实现了干扰的抑制。

In order to availably restrain the disturbing effect of jet in cross-flow,the autopilot for compound controller missile by using aerodynamics/reaction-jet is designed based on L2-Gain theory.The standard L2-Gain design problem is expounded,and the application of L2-Gain theory for linear system is emphasized,then via solving algebraic Riccati equations the feedback controller is obtained.Based on the aerodynamics/reaction-jet compound controller structure,the state-space model of the autopilot is obtained.In this model the disturbing effect of jet in cross-flow is taken as bounded uncertainties.Utilizing the all-dimensional state feedback method,the design of autopilot is equivalent to a standard L2-Gain problem,and therefore,achieves disturbance effect.The simulation results show that the autopilot have high performance for tracking command signal,improve the robustness to disturbing effect.