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根据机动中机翼摇晃的主要动态特性,建立了多维非线性模型;在动态逆控制律的设计中,特别针对外环中状态变量多于操纵舵的问题,构造了基于加权最小二乘逆的控制结构,并引入积分反馈以弥补最小二乘近似逆及模型不确定性等因素导致的系统逆误差。仿真实验结果表明,所设计的加权最小二乘逆控制器,不仅能确保战机准确地跟踪机动指令,更能有效地抑制机动过程中的机翼摇晃现象,且具有较强的鲁棒性。
According to the main dynamic characteristics of wing motion in maneuvering, a multi-dimensional nonlinear model is established. In the design of dynamic inverse control law, especially for the problem of more state variables in the outer ring than the manipulator, a weighted least squares inverse Control structure, and introduce integral feedback to make up for system inverse error caused by factors such as least square approximation inverse and model uncertainty. The simulation results show that the designed weighted least-squares inverse controller can not only ensure that the fighter can accurately track the maneuvering instructions, but also effectively restrain the wing shake during maneuvering and has strong robustness.