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飞航导弹模型可以处理成一种四层非线性、时变块对角结构 ,但其中一、二层模型不是仿射型模型 ,这在控制理论的应用上受到限制。本文应用优化线性理论 ,对这两层模型进行了仿射型处理 ,这样就得到了飞航导弹的四层非线性仿射型模型。接着 ,本文提出了一类非线性系统的变结构控制方法 ,从而对导弹进行了分层变结构控制器设计。仿真结果表明 ,所设计的系统具有很强的鲁棒性。
The flight-guided missile model can be processed into a four-layer nonlinear and time-varying block diagonal structure. However, the first and second layer models are not affine models, which limits the application of control theory. In this paper, the optimization linear theory is applied to the two-layer model affine-type processing, so get the four-layer non-linear affine model of the missile. Then, this paper presents a variable structure control method for a class of nonlinear systems, so that the layered variable structure controller design of the missile is carried out. Simulation results show that the designed system has strong robustness.