Organizational Unit:
Aerospace Design Group

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Author: Yang, Bong-Jun × Author: Hovakimyan, Naira ×

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Coordinated Decentralized Adaptive Output Feedback Control of Interconnected Systems

2004-06 , Hovakimyan, Naira , Lavretsky, Eugene , Yang, Bong-Jun , Calise, Anthony J.

A decentralized adaptive output feedback control design is proposed for large-scale interconnected systems. It is assumed that all the controllers share prior information about the system reference models. A linearly parameterized neural network is introduced for each subsystem to partially cancel the effect of the interconnections on tracking performance. Boundedness of error signals is shown through Lyapunov's direct method.

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Experimental Validation of an Augmenting Approach to Adaptive Control of Uncertain Nonlinear Systems

2003-08 , Yang, Bong-Jun , Hovakimyan, Naira , Calise, Anthony J. , Craig, James I.

A method of adaptive output feedback design for uncertain nonlinear systems is presented. The development is in a form that is suitable for augmenting a linear controller. The approach is applicable to non-affine, non-minimum phase systems having parametric and dynamic uncertainties. A requirement is that the non-minimum phase zeros are represented to a sufficient accuracy in the linear controller design. The approach has been experimentally validated using a 3-disk torsional pendulum and an inverted pendulum.

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