摘要
A novel disturbance estimation approach is presented for a class of single-input-single-output(SISO) systems subjected to singlesinusoidal disturbance with unknown frequency. The exogenous modeled disturbance is represented in a parametric uncertainty form by series of virtual disturbances. Especially the unknown parameter related to disturbance frequency can be reduced to a scalar, and is estimated through construction of auxiliary filter based on system output. Resultantly the observer framework asymptotic stability property can be guaranteed, simulations demonstrate the effectiveness of the proposed scheme.
A novel disturbance estimation approach is presented for a class of single-input-single-output(SISO) systems subjected to singlesinusoidal disturbance with unknown frequency. The exogenous modeled disturbance is represented in a parametric uncertainty form by series of virtual disturbances. Especially the unknown parameter related to disturbance frequency can be reduced to a scalar, and is estimated through construction of auxiliary filter based on system output. Resultantly the observer framework asymptotic stability property can be guaranteed, simulations demonstrate the effectiveness of the proposed scheme.
引文
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