Browsing by Author "Kosmatopoulos, E. B."
Now showing items 1-20 of 22
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Article
Adaptive mixing control with multiple estimators
Baldi, S.; Ioannou, Petros A.; Kosmatopoulos, E. B. (2012)A recently proposed adaptive control scheme with mixing involves the use of precalculated candidate controllers whose output is weighted on the basis of the parameter estimates generated by an online parameter estimator. ...
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Conference Object
Adaptive optimization for active queue management supporting TCP flows
Baldi, S.; Kosmatopoulos, E. B.; Pitsillides, Andreas; Lestas, Marios; Ioannou, Petros A.; Wan, Y. (Institute of Electrical and Electronics Engineers Inc., 2016)An adaptive decentralized strategy for active queue management of TCP flows over communication networks is presented. The proposed strategy solves locally, at each link, an optimal control problem, minimizing a cost composed ...
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Conference Object
Centralized, decentralized, and overlapping control designs for a segmented telescope
Li, K.; Kosmatopoulos, E. B.; Ioannou, Petros A.; Boussalis, Helen R. (IEEE, 1999)The accurate control of the segments of large segmented telescopes to achieve the desired shape could open the way for the construction of much larger telescopes with much better capabilities. In this article, we consider ...
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Article
Collision avoidance analysis for lane changing and merging
Jula, H.; Kosmatopoulos, E. B.; Ioannou, Petros A. (2000)One of the riskiest maneuvers that a driver has to perform in a conventional highway system is to merge into the traffic and/or to perform a lane changing maneuver. Lane changing/merging collisions are responsible for ...
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Article
Control techniques for a large segmented reflector
Li, K.; Kosmatopoulos, E. B.; Ioannou, Petros A.; Boussalis, Helen R.; Mirmirani, M.; Chassiakos, Anastassios (1998)NASA has founded a project to design and construct a test-bed in the Controls and Structures Laboratory at the California State University to study the complex dynamic behavior of large segmented optical systems. The ...
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Article
Convex design control for practical nonlinear systems
Baldi, S.; Michailidis, I.; Kosmatopoulos, E. B.; Papachristodoulou, A.; Ioannou, Petros A. (2014)This paper describes a new control scheme for approximately optimal control (AOC) of nonlinear systems, convex control design (ConvCD). The key idea of ConvCD is to transform the approximate optimal control problem into a ...
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Article
Dynamical neural networks that ensure exponential identification error convergence
Kosmatopoulos, E. B.; Christodoulou, Manolis A.; Ioannou, Petros A. (1997)Classical adaptive and robust adaptive schemes, are unable to ensure convergence of the identification error to zero, in the case of modeling errors. Therefore, the usage of such schemes to 'black-box' identification of ...
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Article
Erratum: Dynamical neural networks that ensure exponential identification error convergence (Neural Networks (1997) 10:2 (299-314)) PII S0893608098000409
Kosmatopoulos, E. B.; Christodoulou, Manolis A.; Ioannou, Petros A. (1998)
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Article
High-order neural network structures for identification of dynamical systems
Kosmatopoulos, E. B.; Polycarpou, Marios M.; Christodoulou, M. A.; Ioannou, P. A. (1995)
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Conference Object
Nonlinear Control of Large Scale complex Systems using Convex Control Design tools
Kosmatopoulos, E. B.; Baldi, S.; Ampountolas, Konstantinos; Rovas, D. V.; Papachristodoulou, A.; Ioannou, Petros A. (2011)Based on recent advances on convex design for Large-Scale Control Systems (LSCSs) and robust and efficient LSCS self-tuning/adaptation, a methodology is proposed in this paper which aims at providing an integrated LSCS-design, ...
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Conference Object
Nonlinear control of large scale complex systems using convex optimization tools and self-adaptation
Baldi, S.; Kosmatopoulos, E. B.; Ampountolas, Konstantinos; Rovas, D.; Papachristodoulou, A.; Ioannou, Petros A. (2011)Based on recent advances on convex design for Large-Scale Control Systems (LSCSs) and robust and efficient LSCS self-tuning/adaptation, a methodology is proposed in this paper which aims at providing an integrated LSCS-design, ...
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Conference Object
Optimum number of automated shuttles driven by linear motors in an container terminal
Jula, H.; Liu, C. I.; Kosmatopoulos, E. B.; Ioannou, Petros A. (Institute of Electrical and Electronics Engineers Inc., 2001)The emergence of huge container ships together with the scarcity of yard land put an enormous pressure on authorities to adopt advanced technologies to increase the throughput of current container terminals. Automated ...
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Article
A "plug and play" computationally efficient approach for control design of large-scale nonlinear systems using cosimulation: A combination of two "ingredients"
Baldi, S.; Michailidis, I.; Kosmatopoulos, E. B.; Ioannou, Petros A. (2014)As mathematical program-ming techniques and com-puter capabilities evolve, control designs are required to address control problems of ever-increasing scale and complexity. A particularly promising methodology toward such ...
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Conference Object
A "plug-n-play" computationally efficient approach for control design of large-scale nonlinear systems using co-simulation
Baldi, S.; Michailidis, I.; Jula, H.; Kosmatopoulos, E. B.; Ioannou, Petros A. (Institute of Electrical and Electronics Engineers Inc., 2013)Recently, there has been a growing interest towards simulation-based control design (co-simulation), where the controller utilizes an optimizer to minimize or maximize an objective function (system performance) whose ...
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Conference Object
Position error signal estimation at high sampling rates using data and servo sector measurements
Ioannou, Petros A.; Kosmatopoulos, E. B.; Despain, A. M. (2002)Track density in hard disk drives (HDD) is related to the performance characteristics of the HDD servo control system. Higher track density can be achieved by improving the performance characteristics of the servo controller ...
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Article
Position error signal estimation at high sampling rates using data and servo sector measurements
Ioannou, Petros A.; Kosmatopoulos, E. B.; Despain, A. M. (2003)The sampling rate in most hard disk drives (HDDs) is limited by the number of servo burst sectors that have prewritten position error signal (PES) data and by the spinning speed of the HDD. This paper presents an algorithm ...
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Article
Robust switching adaptive control of multi-input nonlinear systems
Kosmatopoulos, E. B.; Ioannou, Petros A. (2002)During the last decade a considerable progress has been made in the design of stabilizing controllers for nonlinear systems with known and unknown constant parameters. New design tools such as adaptive feedback linearization, ...
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Conference Object
A scalable iterative convex design for nonlinear systems
Baldi, S.; Ioannou, Petros A.; Kosmatopoulos, E. B. (2012)A recently developed control scheme for approximately optimal control of nonlinear systems is the so-called Convex Control Design (ConvCD) methodology, that transforms the control problem of generic nonlinear systems into ...
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Conference Object
Semiglobal stabilization of nonlinear uncertain systems via a lyapunov-based switching logic
Baldi, S.; Kosmatopoulos, E. B.; Ioannou, Petros A. (Institute of Electrical and Electronics Engineers Inc., 2013)An adaptive supervisory switching control scheme for nonlinear uncertain systems is developed. Such a scheme comprises: A family of nonlinear candidate controllers, designed using a convex control design methodology
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Article
Strategies and spacing requirements for lane changing and merging in automated highway systems
Kanaris, Alexander; Kosmatopoulos, E. B.; Ioannou, Petros A. (2001)In automated highway systems (AHS) vehicles are expected to operate using their own sensing and control systems by interacting with other vehicles and the infrastructure in a way that guarantees safety, stability, and high ...