基于自适应滑模的制导炮弹控制系统设计

Control System Design for Guided Projectile Based on Adaptive Sliding Mode Control

为增强制导炮弹大空域作战能力,将参数估计与滑模控制相结合,提出了一种适用于制导炮弹的鲁棒自适应控制器.考虑到弹体气动对称和交叉耦合特性,利用反馈线性化方法得到参数化的滑模控制律;基于李雅普诺夫稳定性理论设计了控制器参数的自适应规律,使得设计的控制系统具有较强的鲁棒性.仿真结果表明,自适应滑模控制器能有效解决含有较大程度气动不确定性时的制导炮弹跟踪控制问题,并且消除了常规滑模控制的抖振现象.

To enhance the large-space combat capability for guided projectile （GP）, a robust adaptive controller for GP was proposed by combining a parameter estimation scheme with the sliding mode control. Considering the aerodynamic parameter symmetry and cross coupling char- acteristics of GP,a parametric sliding mode controller was obtained via feedback linearization. The parametric adaptation law was designed based on Lyapunov stability theory, and the adaptive sliding mode controller had strong robustness. Simulation results indicate that the proposed controller is robust with respect to large aerodynamic parametric uncertainty, and has excellent dynamic tracking performance with no control chattering.