State estimators and observers for continuous and discrete linear systems. Part 2. Integral observers for exact state reconstruction

• Autorzy: Byrski Jędrzej , Byrski Witold

Identyfikatory

DOI

10.5604/01.3001.0013.2871

• Języki publikacji: EN

Abstrakty

EN

In the paper, the exact state observers will be presented. The state estimators and observers can be used in technical processes for many purposes like the fault detection and diagnosis, the implementation of the state controllers, and soft reconstruction of inaccessible for measurements variables of the system. As the standard, for continuous systems the differential estimators of Kalman filter or Luenberger type observer are commonly used. However, if the initial conditions of the real state are unknown, both estimators guarantee only an asymptotic quality of the real state tracking. The paper presents another type of the state observers, which for continuous system have the structure given by two integral operators. Based on measurements of the system input and output signals on some predefined finite time interval T, they can reconstruct the initial state exactly. In on-line version, the exact state reconstruction is performed continuously for every t, based on special procedure executed within two moving windows of width T, on sliding time interval [t-T, t].

Słowa kluczowe

EN

exact state observer; linear system; state observer with minimal norm

PL

dokładny obserwator stanu; układ liniowy; obserwator stanu z minimalną normą

• Wydawca: Państwowa Wyższa Szkoła Zawodowa w Tarnowie
• Czasopismo: Science, Technology and Innovation
• Rocznik: 2019
• Tom: Vol. 5, no. 2
• Strony: 23--33
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Byrski Jędrzej

• Department of Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, Krakow 30-059, Poland

autor

Byrski Witold

• Department of Automatic Control and Robotics, AGH University of Science and Technology, al. Mickiewicza 30, Krakow 30-059, Poland

Bibliografia

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