| 含未知输入的广义系统的状态与输入估计 |
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| 引用本文： | 孙丽瑛,程兆林.含未知输入的广义系统的状态与输入估计[J].控制理论与应用,2003,20(3):454-458. |
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| 作者姓名： | 孙丽瑛 程兆林 |
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| 作者单位： | 1. 济南大学理学院,山东,济南,250002
2. 山东大学数学与系统科学学院,山东,济南,250100 |
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| 基金项目： | 国家重点基础研究项目.(G1998020300); 高校博士学科点专项科研基金(98042212); 山东省自然科学基金(Q99A07). |
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| 摘 要： | 研究了含未知输入的广义系统的输入解耦观测器设计问题. 在系统脉冲能控的条件下通过系统输入-状态对的非奇异变换, 把此问题等价地转化为正常状态空间系统的相应问题. 用大家熟知的方法设计正常状态空间系统的观测器, 从而得到广义系统的输入解耦观测器. 然后用广义系统的观测器状态和系统输出的线性组合渐近估计系统的状态与未知输入.
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| 关 键 词： | 未知输入 状态与输入估计 输入解耦观测器 |
| 文章编号： | 1000-8152(2003)03-0454-05 |
| 收稿时间： | 2000/5/30 0:00:00 |
| 修稿时间： | 4/8/2002 12:00:00 AM |
State and input estimation for singular systems with unknown input |
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| SUN Li-ying,CHENG Zhao-lin.State and input estimation for singular systems with unknown input[J].Control Theory & Applications,2003,20(3):454-458. |
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| Authors: | SUN Li-ying CHENG Zhao-lin |
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| Affiliation: | School of Science, Jinan University, Shandong Jinan 250002, China; School of Mathematics and System Science, Shandong University, Shandong Jinan 250100, China |
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| Abstract: | The problem of input decoupled observer design for singular linear systems with unknown input is discussed. When the system is impulsively controllable, an equivalent problem for standard state space systems is derived from nonsingular transformation of input-state for systems. An observer of standard state space systems is designed by using well-known techniques, so the input decoupled observer of the singular linear systems is obtained. Finally the state and unknown input of the singular linear systems are asymptotically estimated using the state of the observer and outputs of the systems. |
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| Keywords: | unknown inputs state and input estimation input decoupled-observer |
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