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Vibrations in dynamical structures, as those encountered for instance in mechanical, aerospace or civil engineering, are often caused by internal or external excitations. One way to attenuate vibrations that can be undesirable for safety or other reasons is by the use of active control systems. This means to use feedback controllers driving actuators at appropriate locations between the structure...
This paper presents a sampled-data approach for the robust decoherence control of a single qubit. The required robustness is defined using a sliding mode domain and the control law is designed offline and then utilized online with a single qubit having bounded uncertainties. Two classes of uncertainties are considered involving the system Hamiltonian and the coupling strength of the system-environment...
High-performance robust synchronization motion control for quad-cylinder electro-hydraulic lift systems with parametric uncertainties and uncertain nonlinearities is considered. Adaptive Fuzzy logic systems are introduced as an approximator to counteract the effects of coupling among acceleration terms. Robust adaptive control by backstepping is used to handle parametric uncertainties and uncertain...
For a class of multi input and multi output nonlinear uncertain systems with input coupling term, a robust feedback linearization method combined with a minimax linear quadratic regulator (LQR) control is proposed. The uncertainties in the system and the presence of input terms in the low order derivatives of the outputs due to the input coupling makes the feedback linearization a challenging task...
A new control design method based on signal compensation is proposed for a class of uncertain multi-input multioutput (MIMO) nonlinear systems in block-triangular form with nonlinear uncertainties, external disturbances, unknown virtual control coefficients and strongly coupled interconnections. By this method, the controller design is performed in a backstepping manner. At each step of backstepping...
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