Browsing 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences by Subject "System stability"
Now showing items 1-20 of 28
-
Conference Object
Adaptive bounding techniques for stable neural control systems
(IEEE, 1995)This paper considers the design of stable adaptive neural controllers for uncertain nonlinear dynamical systems with unknown nonlinearities. The Lyapunov synthesis approach is used to develop state-feedback adaptive control ...
-
Article
Adaptive control of a class of slowly time varying systems with modeling uncertainties
(2005)In a recent work, a new linear adaptive controller based on certainty-equivalence and backstepping design, which promises a level of transient and asymptotic performance comparable to that of the tuning functions adaptive ...
-
Article
Adaptive mixing control with multiple estimators
(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. ...
-
Conference Object
Adaptive vehicle following control system with variable time headways
(2005)In this paper, we design a vehicle following control system with variable time headways, using adaptive control design methodology. It is shown that the designed vehicle following control system guarantees closed-loop ...
-
Article
Comparision of spacing and headway control laws for automatically controlled vehicles
(1994)This paper investigates two different longitudinal control policies for automatically controlled vehicles. One is based on maintaining a constant spacing between the vehicles while the other is based upon maintaining a ...
-
Conference Object
Comparison of a nonlinear adaptive controller with certainty-equivalence type adaptive controllers
(IEEE, 1995)Recently a new class of adaptive controllers for linear time invariant minimum phase plants has been proposed and analyzed. The design of these controllers is based on nonlinear tools and appears to be different from that ...
-
Article
Design of strictly positive real systems using constant output feedback
(1999)In this paper, the authors present a linear matrix inequality (LMI) approach to the strictly positive real (SPR) synthesis problem: find an output feedback K such that the closed-loop system T(s) is SPR. The authors establish ...
-
Conference Object
Entrainment and vehicle following controllers design for autonomous intelligent vehicles
(American Automatic Control Council, 1994)Entrainment and vehicle following controllers are proposed for autonomous intelligent vehicles in both non-tight and tight vehicle following maneuvers. A nonlinear vehicle model is used for designing the controllers. The ...
-
Article
Environmental evaluation of Intelligent Cruise Control (ICC) vehicles
(2000)During the last decade considerable research and development efforts have been devoted to automating vehicles in an effort to improve safety and efficiency of vehicle following. Several designs for automatic vehicle following ...
-
Conference Object
Fuzzy traffic density homogenizer for automated highway system
(IEEE, 1994)In this paper, a fuzzy traffic density homogenizer is proposed to alleviate or avoid the congestion by smoothing the traffic density distribution profile over the freeway. The proposed fuzzy traffic density homogenizer ...
-
Article
Model Reference Adaptive Control for Plants with Unknown Relative Degree
(1993)One of the basic assumptions in stable model reference adaptive control (MRAC) that the relative degree n002A of the modeled part of the plant is known exactly and matches that of the reference model is relaxed by the ...
-
Article
Multiple model adaptive control with mixing
(2010)Despite the remarkable theoretical accomplishments and successful applications of adaptive control, the field is not sufficiently mature to solve challenging control problems where strict performance and robustness guarantees ...
-
Conference Object
Neural network control of unknown systems
(IEEE, 1998)In this paper, we show that for all unknown Multi-Input (MI) nonlinear system that affected by external disturbances, it is possible to construct a semi-global state-feedback stabilizer when the only information about the ...
-
Article
A new class of nonlinear robust adaptive controllers
(1996)Recently, a new class of adaptive control schemes, motivated from nonlinear systems theory, has been proposed for minimum phase linear time invariant plants. Under certain assumptions on the plant transfer function, these ...
-
Article
A new linear adaptive controller: Design, analysis and performance
(2000)The certainty equivalence and polynomial approach, widely used for designing adaptive controllers, leads to "simple" adaptive control designs that guarantee stability, asymptotic error convergence, and robustness, but not ...
-
Article
On the Stability Proof of Adaptive Schemes with Static Normalizing Signals and Parameter Projection
(1993)Recently, it has been shown [8] that robust stability in model-reference adaptive control (MRAC) is guaranteed by simply using a static, instead of a dynamic, normalizing signal together with a parameter projection in the ...
-
Article
Parameter convergence of a new class of adaptive controllers
(1996)A new class of adaptive control schemes for minimum-phase linear time invariant (LTI) systems has recently been developed using nonlinear design techniques which guarantee improved transient performance in addition to ...
-
Article
Performance Analysis And Improvement In Model Reference Adaptive Control
(1994)Boundedness of all closed-loop signals and asymptotic convergence of the tracking error to zero or to a residual set are the criteria that have been most commonly used to characterize the performance of model reference ...
-
Conference Object
Performance improvement versus robust stability in model reference adaptive control
(Publ by IEEE, 1992)The mean square tracking error criterion and the L∞ tracking error bound criterion are used to assess the performance of a standard robust model reference adaptive control schemes in ideal and nonideal situations. Controller ...
-
Article
Redox chemistry of sulphate and uranium in a phosphogypsum tailings dump
(2010)The present study aims to assess the effect of redox conditions existing within the tailings dump on the stability of phosphogypsum (e.g. sulphate reduction) and uranium(VI). Phosphogypsum sampling and in-situ measurements ...