| 基于微分Riccati方程解的非线性指数型降维观测器 |
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| 引用本文： | 朱芳来.基于微分Riccati方程解的非线性指数型降维观测器[J].应用科学学报,2005,23(1):12-15. |
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| 作者姓名： | 朱芳来 |
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| 作者单位： | 桂林电子工业学院计算机系, 广西桂林 541004 |
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| 基金项目： | 国家自然科学基金，广西自然科学基金 |
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| 摘 要： | 在一微分Riccati方程有正定解的前提下,通过坐标变换方法对该类系统提出了一种指数型降维观测器设计方法,该观测器的增益矩阵取决于微分Riccati方程的正定解.通过对一实际模型的仿真分析,表明所提出的指数型降维观测器具有较好的状态估计性能.
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| 关 键 词： | 非线性系统 降维观测器 微分Riccati方程 指数收敛 |
| 文章编号： | 0255-8297(2005)01-0012-04 |
| 收稿时间： | 2003-09-25 |
| 修稿时间： | 2004-04-02 |
Nonlinear Exponential Reduced-Order Observers Based on Differential Riccati Equation |
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| ZHU Fang-lai.Nonlinear Exponential Reduced-Order Observers Based on Differential Riccati Equation[J].Journal of Applied Sciences,2005,23(1):12-15. |
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| Authors: | ZHU Fang-lai |
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| Affiliation: | Computer Department, Guilin University of Electronic Technology, Guilin 541004, China |
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| Abstract: | The problems of observer design for nonlinear systems with linear output are discussed in this paper. Under the assumption that a differential Riccati equation is solvable, an exponential reduced-order observer is developed by means of coordinate transformation and the gain matrix of the proposed observer depends on the solution of the differential equation. The simulation results show that the performance of the proposed reduced-order observer is good. |
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| Keywords: | nonlinear systems differential Riccati equation reduced-order observer exponential convergence |
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