大攻角导弹非线性动态自动驾驶仪研究

以设计大攻角导弹非线性动态自动驾驶仪为目的,基于大攻角非线性弹体动力学模型,按过载跟踪误差渐进收敛为目标,建立了应满足舵机偏角的非线性动态方程。结合舵机动力学模型,并按照动态逆原理得到了期望的控制律表达式,然后进行了控制律简化。分别仿真验证了小攻角、大攻角和弹体模型参数摄动条件下控制律的性能,并与传统方法进行了比较。结果表明,非线性动态控制方法的指令跟踪和抗模型参数摄动的鲁棒性均优于传统方法。

Design of Nonlinear Dynamic Autopilot for High Angle-of-attack Missiles

The nonlinear dynamic autopilot for a high angle-of-attack(AOA) missile is designed and its performance is evaluated.The design objective is to ensure the tracking error between the missile acceleration and command to converge exponentially.Based on this consideration,the control law was obtained by dynamic inverse method with constraints on actuator and missile dynamics.Furthermore,the simplified control law is also given for convenience of engineering implementions.The performance of control law under the...