水雷出水突变非线性滑模自适应反演弹道控制

Nonlinear Sliding-mode Trajectory Control with Adaptive Backsteppingfor the Out-of-water Catastrophe of a Mine

  • 摘要: 针对水雷攻击空中目标时出水瞬间数学模型发生突变、速度变化大, 引起大范围参数变化问题, 提出了突变过程非线性滑模和自适应反演控制方法.将参数自适应调整与变结构控制相结合, 设计了弹道状态变化非线性跟踪控制器, 此时系统动态由弹道特性参考模型来预测和调节, 简化了切换函数设计, 克服了模型参数变化的敏感性.通过出水攻击弹道控制系统实验, 验证了此方法的适用性. 实验和仿真数据表明, 所设计的控制系统适用于出水突变过程, 并对系统参数摄动和干扰具有较强的鲁棒性.

     

    Abstract: Aiming at the problems of catastrophe of mathematical model at the out-of-water moment, dramatic variation of speed and subsequent extensive parameter change when the mine attacks an aerial target, the nonlinear sliding mode in catastrophic course and the adaptive backstepping control methods are proposed. A nonlinear tracking controller for trajectory state change is designed combining the adaptive adjustment of the parameter with the variable structure, in order to predict and regulate the system dynamics by the trajectory characteristic reference model, simplify the switching function design, and overcome the sensitivity to model parameter change. The adaptability of the method has been tested and verified through the out-of-water attack trajectory control system experiment. Experimental and simulation data indicate that the designed control system is suitable for the out-of-water catastrophic course, and is quite robust to system parameter perturbation and interference.

     

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