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Proceedings of the 44th IEEE Conference on Decision and Control
This paper deals with asymptotic rejection of general periodic disturbances in nonlinear systems. A novel approach based on integrations over the half of disturbance period is proposed to estimate disturbances which may not be harmonic or even smooth. The proposed algorithm uses the period and the knowledge of the basic disturbance patterns, while the amplitude and phase of the disturbances are unknown, and they are estimated. Based on the estimated disturbance, the disturbance rejectiondoi:10.1109/cdc.2005.1582678 fatcat:bdlwvtbixvfjhnzbjgen3uvyli