| 引用本文: | 刘坤,张淇瑞,郭航,刘涛,夏元清.隐蔽式攻击下的离散系统区间观测器设计[J].控制理论与应用,2020,37(8):1673~1680.[点击复制] |
| LIU Kun,ZHANG Qi-rui,GUO Hang,LIU Tao,XIA Yuan-qing.Interval observer design of discrete-time systems under stealthy attacks[J].Control Theory and Technology,2020,37(8):1673~1680.[点击复制] |
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| 隐蔽式攻击下的离散系统区间观测器设计 |
| Interval observer design of discrete-time systems under stealthy attacks |
| 摘要点击 2514 全文点击 907 投稿时间：2019-07-25 修订日期：2020-01-15 |
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| DOI编号 10.7641/CTA.2020.90618 |
| 2020,37(8):1673-1680 |
| 中文关键词 隐蔽式攻击 区间观测器 网络化控制系统 |
| 英文关键词 stealthy attacks interval observer networked control system |
| 基金项目 国家自然科学基金项目(61873034), 北京市自然科学基金项目(4182057), 北京市智能物流系统协同创新中心开放课题(BILSCIC–2019KF–13), 北京理工大学研究生创新项目(2019CX20031)资助. |
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| 中文摘要 |
| 本文研究了隐蔽式攻击下的网络化控制系统的安全估计问题. 首先, 根据攻击保持隐蔽的条件, 得到了攻
击信号的上界和下界. 其次, 基于边界信息设计了一类原坐标系下的区间观测器, 并进一步通过坐标变换放宽增益
矩阵的设计条件, 给出了变换下的区间观测器设计方法. 然后, 提出了基于H1滤波理论计算隐蔽式攻击下的最优
观测器增益的方法, 并通过求解线性矩阵不等式获得最优增益矩阵. 最后, 通过仿真算例验证了所提方法的有效性. |
| 英文摘要 |
| This paper investigates the security estimation of networked control system under stealthy attacks. Firstly,
the upper and lower bounds of the attack signals are obtained according to the condition that the attacks remain stealthy.
Secondly, based on the bounds of the attacks, an interval observer is designed in the original coordinates. Furthermore, the
design conditions of the gain matrix are relaxed by a transformation of coordinates, and the design method of this interval
observer is given. Then, an approach is proposed to calculate the optimal observer gain based on the theory of H1 filtering,
and the optimal gain matrix is obtianed by solving a linear matrix inequality. Finally, a numerical example is given to verify
the effectiveness of the proposed method. |
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