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Terminal Sliding Mode Control for Attitude Tracking of Spacecraft Based on Rotation Matrix

机译:基于旋转矩阵的航天器姿态跟踪终端滑模控制

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摘要

Two finite-time controllers without unwinding for the attitude tracking control of the spacecraft are investigated based on the rotation matrix, in which a novel modified nonsingular fast terminal sliding manifold is developed to keep tr((K) over bar) not equal -1. The first terminal sliding mode controller can compensate external disturbances with known bounds, while the second one can compensate external disturbances with unknown bounds by using an adaptive control method. Since the first terminal sliding mode controller is continuous, it is able to avoid chattering phenomenon. Theoretical analysis shows that both the two controllers can make spacecraft follow a time-varying reference attitude signal in finite time. Numerical simulations also demonstrate that the proposed control schemes are effective.
机译:研究了基于旋转矩阵的两个不解开的有限时间控制器,用于航天器的姿态跟踪控制,其中开发了一种新颖的改进的非奇异快速终端滑动流形,以使tr((K)over bar)保持不等于-1。第一终端滑模控制器可以通过使用自适应控制方法来补偿具有已知范围的外部干扰,而第二终端滑模控制器可以使用未知的控制范围来补偿具有未知范围的外部干扰。由于第一终端滑动模式控制器是连续的,因此能够避免抖动现象。理论分析表明,两种控制器都可以使航天器在有限的时间内跟随时变的参考姿态信号。数值模拟也表明所提出的控制方案是有效的。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第4期|187924.1-187924.9|共9页
  • 作者单位

    Harbin Inst Technol, Ctr Control Theory & Guidance Technol, Harbin 150001, Peoples R China.;

    Harbin Inst Technol, Ctr Control Theory & Guidance Technol, Harbin 150001, Peoples R China.;

    Harbin Inst Technol, Ctr Control Theory & Guidance Technol, Harbin 150001, Peoples R China.;

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