A finite-time convergent observer with robustness to piecewise-constant measurement noise

Yuchun Li ^[1] ; Ricardo G. Sanfelice ^[1]
1. [1] University of California, Santa Cruz
  
  University of California, Santa Cruz
  
  Estados Unidos
Localización: Automatica: A journal of IFAC the International Federation of Automatic Control, ISSN 0005-1098, Vol. 57, 2015, págs. 222-230
Idioma: inglés
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Resumen
- Motivated by the design of observers with good performance and robustness to measurement noise, the problem of estimating the state of a linear time-invariant system in finite time and robustly with respect to measurement noise is considered. Using a hybrid systems framework, a hybrid observer producing an estimate that converges to the plant state in finite time, even under unknown piecewise-constant noise, is presented. The stability and robustness properties of the observer are shown analytically and validated numerically.