A robust state observer scheme
- Resource Type
- Periodical
- Authors
- Da-Wei Gu; Fu Wah Poon
- Source
- IEEE Transactions on Automatic Control IEEE Trans. Automat. Contr. Automatic Control, IEEE Transactions on. 46(12):1958-1963 Dec, 2001
- Subject
- Signal Processing and Analysis
Observers
Uncertainty
State estimation
Robust stability
Lyapunov method
Riccati equations
Noise robustness
Furnaces
Control system analysis
State feedback
- Language
- ISSN
- 0018-9286
1558-2523
2334-3303
This note proposes a new approach to robust state observer construction. The scheme is derived by including an extra term and adopting the Lyapunov stability theorem, and requires the solution of an algebraic Riccati equation. The scheme is implemented in a gas-fired furnace system example. Satisfactory results have been obtained, though in general special attention need be paid to some numerical issues in implementing the scheme.