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Showing papers by "Zhiwei Gao published in 2005"


Journal ArticleDOI
Zhiwei Gao1
TL;DR: A new parametrization of all observers for descriptor systems with bounded input disturbances is developed and the estimation error dynamics are parametrized with respect to the disturbance vectors.
Abstract: Based on the design of proportional and derivative (PD) observers, a new parametrization of all observers for descriptor systems is developed. Without using any additional transformations, the present observer parametrization is convenient and efficient to be performed. The connections between the proposed parametrization and the known results are established. For descriptor systems with bounded input disturbances, the estimation error dynamics are parametrized with respect to the disturbance vectors. An example is included to illustrate the parametrization procedures.

34 citations


Journal ArticleDOI
TL;DR: New observer design approaches are presented for Takagi-Sugeno (T-S) fuzzy models with measurement output noises, where the state and the output noise can be estimated at the same time.

14 citations


Journal ArticleDOI
TL;DR: In this paper, a new design approach of observer is proposed for generalized dynamical systems with unknown input disturbances, and the estimation error dynamics can be guaranteed to be internally proper stable and the disturbance can be de-coupled successfully.

9 citations