Title :
Describing function analysis of second order sliding mode observers
Author :
Boiko, Igor ; Castellanos, Ivan ; Fridman, Leonid
Author_Institution :
SNC-Lavalin, Calgary, Alta.
Abstract :
The second order sliding mode observer dynamics are analyzed in the frequency domain. The so-called super-twisting algorithm is utilized for generating the second-order sliding mode in the observer dynamical system. The frequency response of the actuator dynamics is obtained and used as a characteristic of the observer. The analysis proposed is based on the describing function method and the concept of the equivalent gains of nonlinear functions of the super-twisting algorithm
Keywords :
describing functions; frequency response; frequency-domain analysis; nonlinear functions; observers; variable structure systems; actuator dynamics; describing function analysis; equivalent gains; frequency domain; nonlinear functions; second order sliding mode observer dynamics; super-twisting algorithm; Actuators; Algorithm design and analysis; Application software; Control systems; Frequency domain analysis; Frequency response; Nonlinear dynamical systems; Observers; Samarium; State estimation;
Conference_Titel :
American Control Conference, 2006
Conference_Location :
Minneapolis, MN
Print_ISBN :
1-4244-0209-3
Electronic_ISBN :
1-4244-0209-3
DOI :
10.1109/ACC.2006.1656617
