基于鲁棒变结构控制方法的非线性导弹自动驾驶仪设计

Design of Nonlinear Missile Autopilot Based on Robust Sliding Mode Control Method

摘要:

对一类非线性不确定导弹控制系统,采用自适应方法进行了基于滑模理论的变结构控制器设计。该方案使得采用反演手段产生的微分爆炸问题得到较好的回避,同时构造自适应律,消除了不确定性对系统的影响,最后通过构造Lyapunov函数方法,确保了系统的鲁棒稳定性。文末仿真结果表明了该方案的有效性。

Abstract:

By adopting adaptive theory, a variable structure controller was designed for the nonlinear uncertain missile control system. The method can avoid the differential bomb problem which is produced by the backstepping method. And the adaptive method was introduced to cope with the uncertainties of missile system. The stability of system was ensured by constructing Lyapunov function. Finally, the simulation results show the excellent control effect of the proposed method.