Title :
Observation and Identification of Mechanical Systems via Second Order Sliding Modes
Author :
Davila, J. ; Fridman, L. ; Poznyak, A.
Author_Institution :
Dept. of Control, Univ. Nacional Autonoma de Mexico, Mexico City
Abstract :
A second-order sliding-mode observer based on the modified super-twisting algorithm providing finite time observation is applied for system identification. The value of the equivalent output injection is used to identify perturbations directly. Continuous time versions of least square and forgetting factor methods are proposed to identify unknown time-invariant and time-variant parameters respectively
Keywords :
least squares approximations; mechanical variables control; observers; time-varying systems; variable structure systems; finite time observation; forgetting factor method; least square method; mechanical systems; second-order sliding-mode observer; system identification; time-invariant parameter; time-variant parameter; Convergence; Data mining; Filtration; Least squares methods; Mechanical systems; Nonlinear systems; Observers; Signal processing; Sliding mode control; System identification;
Conference_Titel :
Variable Structure Systems, 2006. VSS'06. International Workshop on
Conference_Location :
Alghero, Sardinia
Print_ISBN :
1-4244-0208-5
DOI :
10.1109/VSS.2006.1644523
