Abstract
A robust high-gain observer for state and unknown input estimations for a special class of single-output nonlinear systems is developed in this article. Ensuring the observability of the unknown input with respect to the output, the disturbance can be estimated from the sliding surface. In the sliding mode, the convergence of the estimation error dynamics is proven similar to the analysis of high-gain observers.
Original language | English |
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Pages (from-to) | 329-334 |
Number of pages | 6 |
Journal | Applied Mathematics Letters |
Volume | 24 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2011 |
Keywords
- High-gain observers
- Lyapunov equations
- Nonlinear observers
- Sliding modes