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将舰载机模型视为多输入多输出系统,基于Quasi-Continuous高阶滑模同时设计姿态稳定系统和迎角恒定的动力补偿系统。为避免传统微分环节对输入噪声的放大作用,采用鲁棒精确微分器对滑模面的高阶导数进行计算;为使系统有较快的响应速度,基于ITAE准则,对Quasi-Continuous高阶滑模控制器中参数的选取进行优化。仿真结果表明,在舰尾流存在的情况下,所设计的动力补偿系统能使航迹角准确快速地响应姿态角指令。
Based on the Quasi-Continuous high-order sliding mode, the attitude-stabilizing system and the dynamic compensation system with constant angle-of-attack are considered as the multiple-input multiple-output system. In order to avoid the amplification effect of traditional differential links on input noise, a high-order derivative of the sliding mode surface is calculated by using a robust and accurate differentiator. In order to make the system have a fast response speed, based on the ITAE criterion, The selection of parameters in the model controller is optimized. The simulation results show that the power compensation system can make the track angle accurately and quickly respond to the attitude angle command in the presence of aft flow.