Disturbance-Observer-Based Robust Synchronization Control for a Class of Fractional-Order Chaotic Systems

This brief studies the synchronization control for the fractional-order chaotic system subject to input saturation and external unknown disturbances. To handle unknown disturbances, a disturbance observer is designed for the fractional-order chaotic system. A disturbance-observer-based synchronizati...

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Bibliographic Details
Published inIEEE transactions on circuits and systems. II, Express briefs Vol. 64; no. 4; pp. 417 - 421
Main Authors Chen, Mou, Shao, Shu-Yi, Shi, Peng, Shi, Yan
Format Journal Article
LanguageEnglish
Published IEEE 01.04.2017
Subjects
Chaotic communication
Circuits and systems
Disturbance observer
Fractional calculus
fractional-order chaotic system
input saturation
Laplace equations
Observers
Synchronization
synchronization control
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Summary:This brief studies the synchronization control for the fractional-order chaotic system subject to input saturation and external unknown disturbances. To handle unknown disturbances, a disturbance observer is designed for the fractional-order chaotic system. A disturbance-observer-based synchronization control scheme is then developed. Under the synchronization control, the asymptotically convergent synchronization errors between two fractional-order chaotic systems can be achieved. The simulation results are presented to show the effectiveness of the proposed new design approach.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2016.2563758