| 基于LQG/LTR的高超声速飞行器全通道姿态控制 |
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| 引用本文： | 杜立夫,陈宜成,闵勇,李冬.基于LQG/LTR的高超声速飞行器全通道姿态控制[J].飞行力学,2017,35(5). |
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| 作者姓名： | 杜立夫 陈宜成 闵勇 李冬 |
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| 作者单位： | 中国运载火箭技术研究院北京航天自动控制研究所,北京,100854 |
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| 摘 要： | 针对高超声速飞行器具有强烈的非线性、耦合及不确定性等特点,且存在系统噪声和量测噪声,使姿态控制变得困难的问题,提出了采用LQG/LTR控制方法进行全通道姿态控制的思路。首先,在平衡点通过小偏差线性化方法建立多变量耦合的控制模型;然后,运用LQG/LTR控制方法设计姿态控制器。仿真结果表明,在有高斯噪声情况下,所设计的姿态控制系统实现了指令精确跟踪,具有较强的鲁棒性。
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| 关 键 词： | 高超声速飞行器 LQG/LTR控制 多变量控制 |
Whole-channel attitude control for hypersonic vehicle based on LQG/LTR |
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| DU Li-fu,CHEN Yi-cheng,MIN Yong,LI Dong.Whole-channel attitude control for hypersonic vehicle based on LQG/LTR[J].Flight Dynamics,2017,35(5). |
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| Authors: | DU Li-fu CHEN Yi-cheng MIN Yong LI Dong |
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| Abstract: | Consider that hypersonic vehicle has the characteristic of strong nonlinearity,coupling and uncertainty;in addition exist the system noise and measurement noise,which is making attitude control difficult,the LQG/LTR control method is used to accomplish the whole-channel attitude control.Firstly,the multivariable coupling control model is established by the small deviation linearization method at the equilibrium point.Then,the design of the LQG/LTR control method is used to design.Simulation results show that the designed attitude control system realize the precise tracking of the command in the case of Gauss noise,and the system has strong robustness. |
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| Keywords: | hypersonic vehicle LQG/LTR control multivariable control |
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