A Chattering Free Discrete-Time Global Sliding Mode Controller for Optoelectronic Tracking System
Joint Authors
Ren, Yan
Liu, Zhenghua
Liu, Xiaodong
Zhang, Yu
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-12
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Aiming at the uncertainties including parameter variations and external disturbances in optoelectronic tracking system, a discrete-time global sliding mode controller (DGSMC) is proposed.
By the design of nonlinear switching function, the initial state of control system is set on the switching surface.
An adaptive discrete-time reaching law is introduced to suppress the high-frequency chattering at control input, and a linear extrapolation method is employed to estimate the unknown uncertainties and commands.
The global reachability for sliding mode and the chattering-free property are proven by means of mathematical derivation.
Numerical simulation presents that the proposed DGSMC scheme not only ensures strong robustness against system uncertainties and small tracking error, but also suppresses the high-frequency chattering at control input effectively, compared with the SMC scheme using conventional discrete-time reaching law.
American Psychological Association (APA)
Ren, Yan& Liu, Zhenghua& Liu, Xiaodong& Zhang, Yu. 2013. A Chattering Free Discrete-Time Global Sliding Mode Controller for Optoelectronic Tracking System. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-1035810
Modern Language Association (MLA)
Ren, Yan…[et al.]. A Chattering Free Discrete-Time Global Sliding Mode Controller for Optoelectronic Tracking System. Mathematical Problems in Engineering No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-1035810
American Medical Association (AMA)
Ren, Yan& Liu, Zhenghua& Liu, Xiaodong& Zhang, Yu. A Chattering Free Discrete-Time Global Sliding Mode Controller for Optoelectronic Tracking System. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-1035810
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1035810