Asymptotic rejection of finite frequency modes of general periodic disturbances in output feedback nonlinear systems

Authors:
Zhengtao Ding
Affiliations:
Control Systems Centre, School of Electrical and Electronic Engineering, University of Manchester, PO Box 88, Manchester M60 1QD, United Kingdom
Venue:
Automatica (Journal of IFAC)
Year:
2008

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Abstract

This paper deals with asymptotic rejection of individual frequency modes in nonlinear systems under general periodic disturbances. An iterative observer design is proposed for disturbance estimation, and it is shown that the proposed observer design successfully extracts individual frequency modes from general periodic disturbances. The proposed iterative observer design is then applied to asymptotic rejection of nonlinear systems under general periodic disturbances.