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Considering the nonlinearity, parameters perturbation and random waves disturbance to the ship fin stabilizer system during ship sailing on the rough sea, a robust controller based on sliding mode control which incorporates fuzzy tuning technique is proposed in this paper. The sliding mode control is used to force the ship roll to zero. The fuzzy tuning is adopted to eliminate the chattering of control...
This paper focuses on an integral sliding mode control (ISMC) algorithm for the fault-tolerant control of linear continuous multi-input systems with non-smooth nonsymmetric actuator dead-zone failure and unmatched disturbances. The dead-zone is first modeled as a combination of a line and a disturbance-like term. And the novelty of the paper lies in that the treatment of the deadzone failure based...
The normalized difference snow index (NDSI), a key part of the snow-mapping algorithm for extracting snow information from remotely sensed imageries, has been frequently employed in acquiring snow cover extent in the past decades. A linear regression analysis has been frequently used in estimating snow cover fraction (SCF) on a subpixel basis by developing a statistical relationship between NDSI and...
The robust Hinfin control problem for nonlinear systems with uncertainties and impulsive effects is considered. Based on the Takagi-Sugeno (T-S) fuzzy model and the parallel distributed compensation (PDC) technique, some sufficient conditions for robust Hinfin stability are proposed and are expressed in terms of linear matrix inequalities (LMIs). Numerical example shows the control algorithm is feasible...
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