TY - JOUR
T1 - Continuous and discrete state reconstruction for nonlinear switched systems via high-order sliding-mode observers
AU - Davila, Jorge
AU - Pisano, Alessandro
AU - Usai, Elio
PY - 2011/5
Y1 - 2011/5
N2 - A class of nonlinear switched systems is studied, and a finite-time converging state observer is proposed. The observer strategy, based on the high-order sliding-mode approach, is able to reconstruct both the continuous and discrete states of the switched system based on output measurements and on the knowledge of the set of possible system's dynamics. All the 'operating modes' of the switched system are required to satisfy certain observability-like and boundedness restrictions. The observer provides a finite-time converging estimate and, after a switching of the active mode, it features an arbitrarily fast transient to recover the correct (continuous and discrete) state estimate. A numerical example illustrates the performance of the proposed observer.
AB - A class of nonlinear switched systems is studied, and a finite-time converging state observer is proposed. The observer strategy, based on the high-order sliding-mode approach, is able to reconstruct both the continuous and discrete states of the switched system based on output measurements and on the knowledge of the set of possible system's dynamics. All the 'operating modes' of the switched system are required to satisfy certain observability-like and boundedness restrictions. The observer provides a finite-time converging estimate and, after a switching of the active mode, it features an arbitrarily fast transient to recover the correct (continuous and discrete) state estimate. A numerical example illustrates the performance of the proposed observer.
KW - high-order sliding-mode observers
KW - nonlinear observers
KW - switched systems
UR - http://www.scopus.com/inward/record.url?scp=79952012509&partnerID=8YFLogxK
U2 - 10.1080/00207721.2010.518254
DO - 10.1080/00207721.2010.518254
M3 - Artículo
SN - 0020-7721
VL - 42
SP - 725
EP - 735
JO - International Journal of Systems Science
JF - International Journal of Systems Science
IS - 5
ER -