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Fuzzy attitude tracking control for mars entry vehicles with external disturbance

机译：具有外部干扰的火星进入车辆的模糊姿态跟踪控制

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摘要

In this paper, a fuzzy tracking controller is designed for Mars entry vehicles during the entry phase in consideration of external disturbance. The original nonlinear attitude dynamics is divided into two subsystems based on the concept of time-scale decomposition. Dynamic inversion method is employed for the slow kinematic subsystem to give the angular velocity command by taking the attitude command as its input, which is generated by the guidance system of the entry vehicle. The T-S fuzzy model based control method is applied for the fast kinetic subsystem by taking angular velocity command as its input to derive the desired control torques in the presence of external disturbance. Finally, the simulation results on the Mars entry attitude tracking control are given to demonstrate the effectiveness of the developed method.
机译：在本文中，考虑到外界干扰，为火星进入车辆在进入阶段设计了模糊跟踪控制器。基于时间尺度分解的概念，原始的非线性姿态动力学分为两个子系统。慢运动子系统采用动态求逆方法，以姿态指令为输入，给出角速度指令，该姿态指令由进入车辆的制导系统产生。基于T-S模糊模型的控制方法通过以角速度命令为输入，应用于快速动力学子系统，以在存在外部干扰的情况下得出所需的控制转矩。最后，给出了火星进入姿态跟踪控制的仿真结果，证明了该方法的有效性。

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