Browsing Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics by Author "Jafari, S."
Now showing items 1-8 of 8
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Conference Object
Adaptive suppression of periodic disturbances in MIMO linear systems
Jafari, S.; Ioannou, Petros A. (2013)Suppression of unknown periodic disturbances with time-varying characteristics has many industrial applications. The purpose of this paper is to propose a robust adaptive control scheme to suppress noise-corrupted disturbances ...
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Conference Object
Control of a flexible aircraft using a Lyapunov-based switching scheme with a guaranteed stability margin
Jafari, S.; Ioannou, Petros A.; Rudd, L. (2013)In dynamical systems with significant uncertainties, implementing a verifiable control scheme which guarantees a satisfactory performance is of great importance. In flight control, the parameters of aeroelastic systems ...
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Article
L1-Adaptive control: Stability, robustness, and interpretations
Ioannou, Petros A.; Annaswamy, A. M.; Narendra, K. S.; Jafari, S.; Rudd, L.; Ortega, R.; Boskovic, J. (2014)An adaptive control design approach that involves the insertion of a strictly proper stable filter at the input of standard Model Reference Adaptive Control (MRAC) schemes has been proposed in the recent years. This approach ...
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Article
Rejection of unknown periodic disturbances for continuous-time MIMO systems with dynamic uncertainties
Jafari, S.; Ioannou, Petros A. (2016)Rejection of unknown periodic disturbances in multi-channel systems has several industrial applications that include aerospace, consumer electronics, and many other industries. This paper presents a design and analysis of ...
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Article
Robust adaptive attenuation of unknown periodic disturbances in uncertain multi-input multi-output systems
Jafari, S.; Ioannou, Petros A. (2016)In high-performance high-accuracy systems, the attenuation of vibrational disturbances is essential. In this paper, we design and analyze a robust output-feedback adaptive control scheme to attenuate noise-corrupted ...
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Conference Object
Robust stability and performance of adaptive jitter supression in laser beam pointing
Jafari, S.; Ioannou, Petros A.; Fitzpatrick, B.; Wang, Y. (Institute of Electrical and Electronics Engineers Inc., 2013)This paper studies the robustness and performance of an adaptive scheme for suppression of laser beam jitter in the presence of unmodeled dynamics in a continuoustime formulation. To demonstrate the level of performance ...
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Article
Robustness and Performance of Adaptive Suppression of Unknown Periodic Disturbances
Jafari, S.; Ioannou, Petros A.; Fitzpatrick, B.; Wang, Y. (2015)In recent years, a class of adaptive schemes has been developed for suppressing periodic disturbance signals with unknown frequencies, phases, and amplitudes. The stability and robustness of these schemes with respect to ...
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Conference Object
What is L1 adaptive control
Jafari, S.; Ioannou, Petros A.; Rudd, L. (2013)Recently, a class of adaptive control schemes called L1 Adaptive Control (L1-AC) has been proposed and widely advertised in aerospace control for achieving fast and robust adaptation and better performance than the existing ...