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卫星姿态动力学系统与其线性化模型之间的误差会影响姿态控制的精度。应用多层前馈网络对该误差进行建模,并基于此模型和线性系统理论设计了一种新型的卫星姿态控制器,该控制器实现了卫星三轴解耦控制,并使卫星姿态动力系统与其线性化模型的响应误差在最小二乘准则意义下最小。仿真结果表明在俯仰角、滚动角和偏航角机动量均为0.01rad情况下,控制器能够提供较高的控制精度。
The error between the satellite attitude dynamics system and its linearized model will affect the accuracy of attitude control. The multi-layer feedforward network is used to model the error. Based on this model and the linear system theory, a new satellite attitude controller is designed. The controller realizes the three-axis satellite decoupling control and makes the satellite attitude dynamic system The response error to its linearized model is minimal in the sense of least squares criterion. The simulation results show that the controller can provide higher control accuracy when the pitch, roll angle and yaw maneuver are 0.01rad.