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Issue:
Adaptive observer design for a class of nonlinear systems
Author(s):
ZHAO Lili
,
LI Ping
,
LI Xiuliang
Pages:
11
-
18
Year:
2012
Issue:
1
Journal:
Control Theory & Applications
Keyword:
adaptive observer
;
highgain observer
;
joint estimation of states and parameters
;
nonlinear system
;
Abstract:
在故障诊断应用中,状态方程中的未知参数和输出方程中的未知参数分别表征执行机构故障和传感器故障,所以研究状态方程和输出方程同时含有未知参数的自适应观测器有着实际的应用意义.本文基于高增益观测器和自适应估计理论,针对状态方程和输出方程同时含有未知参数的一类一致可观的非线性系统,用构造性方法设计了一种联合估计状态和未知参数的白适应观测器.该自适应观测器的参数估计采用时变增益矩阵,结构形式及参数设置简单....
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