Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 34 for “"Discrete-Time Systems"”.
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Stochastic optimization for discrete-time systems
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1980.
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A control system design technique for nonlinear discrete time systems
… for use with a class of nonlinear, single-input discrete time systems. The technique is based on a discrete time approach that parallels existing continuous time sliding surface concepts. Modifications to the basic algorithm allow for system models with time-variant or uncertain parameters, time …
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Inverse optimization of discrete-time systems applied to human locomotion
The problem of inverse optimization is to find the objective function that is being minimized, given knowledge of the constraints and observations of local minima. In this thesis, we consider the special case in which the objective function is a linear combination of known basis functions weighted …
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Stability and performance robustness of discrete-time systems with structured uncertainty
The robustness of discrete-time systems in the presence of norm-bounded linear time-varying and/or nonlinear perturbations is addressed. A general framework for dealing with stability as well as performance robustness of such systems is set up whereby an arbitrary number of perturbations can be …
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Integration of Extremum Seeking and Model Predictive Control for Discrete Time Systems
This thesis considers a time-varying extremum seeking control algorithm that adjusts set-points provided to a model predictive controller for a vapour compression system. While perturbation-based extremum seeking methods have been known for some time, they suffer from slow convergence rates---a …
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Identification and Control of Linear Discrete-Time Systems With Correlated Stochastic Parameters
Made available in DSpace on 2014-12-10T19:06:58Z (GMT). No. of bitstreams: 1 7219803.pdf: 2642505 bytes, checksum: 157bdeca719dea5b956cc4fe72acb16a (MD5) Previous issue date: 1972
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Neural network control of nonstrict feedback and nonaffine nonlinear discrete-time systems with application to engine control
… functions for two different classes of nonlinear discrete-time systems. Employing NN in closed-loop feedback systems requires that weight update algorithms be stable...Controllers are developed and applied to a nonlinear, discrete-time system of equations for a spark ignition engine model to …
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Adaptive control of nonlinear discrete-time systems and its application to control of a flexible-link manipulator
… and indirect adaptive control strategies for discrete-time nonlinear systems and to investigate the applicability of the proposed schemes to adaptive tracking control of a flexible-link manipulator. The first problem considered is indirect adaptive control of a fully as well as a partially …
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Controllability, Observability and Realizability
… we analyze the theory of and solutions to linear time systems, continuous and discrete time systems, time-varying systems, and first-order matrix Sylvester systems. Examples and sample computed calculations are provided for both uncontrolled and controlled systems. We also develop a new method for …
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ΑΛΓΟΡΙΘΜΟΙ ΔΙΑΜΕΛΙΣΜΟΥ ΓΡΑΜΜΙΚΗΣ ΕΚΤΙΜΗΣΗΣ-ΣΥΓΚΡΙΤΙΚΗ ΥΠΟΛΟΓΙΣΤΙΚΗ ΑΝΑΛΥΣΗ
… LINEAR ESTIMATION PARTITIONING ALGORITHMS, FOR DISCRETE TIME SYSTEMS. FOUR NEW RECURSIVE PER- SAMPLE PARTITIONING ESTIMATION ALGORITHMS ARE INITIALY PRESENTED, AND THE RELATED MERITS, WITH RESPECT TO THEIR COMPUTATIONAL REQUIREMENTS ARE EXAMINED AGAINST THREE OTHER PARTITIONING ALGORITHMS …
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Time-delay systems : stability, sliding mode control and state estimation
Time delays and external disturbances are unavoidable in many practical control systems such as robotic manipulators, aircraft, manufacturing and process control systems and it is often a source of instability or oscillation. This thesis is concerned with the stability, sliding mode control and …
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Design of optimal control systems and industrial applications.
… The frequency domain solution to the finite time optimal control problem for discrete time systems is described and controller expressions in closed loop form are obtained for the regulation and tracking problems. The design of a strip shape control system for a Sendzimir cold rolling steel …
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Time optimal control for asymptotic tracking of linear systems with input saturation
… some properties for a class of linear systems with input saturation, and design composite nonlinear feedback controllers. We have explored the problem of asymptotic time optimal tracking for a class of linear system with actuator nonlinearities. A formula on the optimal settling time is …
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Advances in numerical bifurcation software : MatCont
… analysis. Bifurcation theory treats dynamical systems from a high-level point of view. In the case of continuous dynamical systems this means that it considers nonlinear differential equations without any special form and without restrictions except for differentiability up to a sufficiently …
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DESIGN OF MULTIVARIABLE FEEDBACK CONTROLLERS: ITALIC-L(1)-OPTIMAL SYSTEMS
… following problem: Given a multivariable linear time-invariant plant, we want to design a feedback controller in such a way that the closed loop system is internally stable and the output tracks an arbitrary set of bounded and persistent inputs for all time. This problem is equivalent to finding …
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A General Framework for the Control of Nonlinear Systems
… and performance of generic nonlinear dynamical systems. Such a framework can be developed for systems consisting of interconnections of linear systems and bounded nonlinear operators. The use of the Standard Nonlinear Operator Form (SNOF) is proposed for the control of nonlinear systems. The …
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A general discrete-time arbitrage theorem
Please read the abstract in the front section of this document
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Stability Analysis of Unconstrained Receding Horizon Control Schemes
… guarantee. Since many practically relevant discrete time systems are induced by sampled differential equations, effects linked to employing faster sampling and, thus, more accurate discretizations are analyzed. In this context a growth condition which may, e.g., reflect continuity …
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