Jong-Yeob Shin

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In a fault tolerant control (FTC) system, a parameter varying FTC law is reconfigured based on fault parameters estimated by fault detection and isolation (FDI) modules. FDI modules require some time to detect fault occurrences in aero-vehicle dynamics. In this paper, an FTC analysis framework is provided to calculate the upper bound of an induced-¢ ¡ norm(More)
— This paper presents an application of robust gain-scheduled control concepts using a linear parameter-varying (LPV) control synthesis method to design fault tolerant controllers for a civil transport aircraft. To apply the robust LPV control synthesis method, the nonlinear dynamics must be represented by an LPV model, which is developed using the function(More)
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An LMI-based analysis is performed for adaptive control in the presence of unmodeled input dynamics. The formulation involves recasting the error dynamics composed of the tracking error and the weight estimation error into a linear parameter varying form. With the notion of L2 gain as a metric for robustness of adaptive control, we show that a broad class(More)
In this paper, an adaptive two-stage linear Kalman filtering algorithm (Wu, Zhang, and Zhou, 2000) is used to estimate the loss of control effectiveness and the magnitude of low degree of stuck faults in a closed-loop nonlinear B747 aircraft. Control effectiveness factors and stuck magnitudes are used to quantify faults entering control systems through(More)
This is to certify that I have examined this bound copy of a doctoral thesis by Raktim Bhattacharya and have found that it is complete and satisfactory in all respects, and that any and all revisions required by the final examining committee have been made. Acknowledgements First of all, I would like to thank my advisor Professor Gary. J. Balas for his(More)
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