Discrete time systems

In this paper, the problem of exponential stability of linear time-delay systems with mixed discrete and distributed delays is studied. Based on an asymmetric Lyapunov–Krasovskii functional approach, sufficient conditions are derived in terms of linear matrix inequalities to guarantee the exponential convergence of the system state trajectories with a prescribed decay rate.

14p viaburame 14-03-2025 4 1   Download

This paper investigates the problem of finite-time stability for discrete-time neural networks with sector-bounded neuron activation functions and interval-like timevarying delay. The extended reciprocally convex approach is used to establish a delay-dependent sufficient condition to ensure finite-time stability for this class of systems.

12p viling 11-10-2024 1 1   Download

After studying this chapter students will be able to understand frequency analysis of signals and systems. This chapter includes content: Discrete time fourier transform DTFT, discrete fourier transform DFT, fast fourier transform FFT.

41p youcanletgo_04 15-01-2016 60 4   Download

Chapter 3 presents the discrete-time systems. In this chapter, you will learn to: Input/output relationship of the systems, linear time-invariant (LTI) systems, FIR and IIR filters, causality and stability of the systems.

49p youcanletgo_04 15-01-2016 58 3   Download

Bài giảng "Xử lý tín hiệu số: Signal and System in Time Domain" cung cấp cho người học các kiến thức: Discrete time signals, discrete time systems, LTI systems. Mời các bạn cùng tham khảo nội dung chi tiết.

90p doinhugiobay_13 24-01-2016 72 5   Download

Bài giảng "Xử lý tín hiệu số: Fourier Transform" cung cấp cho người học các kiến thức: Frequency analysis of discrete time signal, properties of Fourier transform, frequency domain characteristics of LTI systems, discrete Fourier Transform, fast Fourier Transform. Mời các bạn cùng tham khảo nội dung chi tiết.

72p doinhugiobay_13 24-01-2016 71 4   Download

Lecture "Fundamentals of control systems - Chapter 7: Mathematical model of discrete time control systems" presentation of content: Introduction to discrete - time system, the Z-transform, transfer function of discrete-time system,... Invite you to reference.

48p doinhugiobay_17 04-03-2016 63 6   Download

The thesis "Stability of some classes of degenerate two-phase difference systems with delay" is to study the stability of degenerate two-phase systems with mixed delay in the direction of variation; Stability and dissipation in finite domain of degenerate 2-D system with variable delay; Evaluation of the gain set and control design for a degenerate 2-D system in the Roesser model with variable delay;... Please refer to it!

120p gaupanda019 21-03-2024 8 1   Download

Magnetic bearing systems have received much attention in the research community for the past decades. Its inherent nonlinearity and open-loop instability present challenges for controller design. This thesis investigates and designs model predictive control (MPC) systems for an experimental Active Magnetic Bearing (AMB) laboratory system. A host-target development environment of real-time control system with hardware in the loop (HIL) is used for implementation of the predictive control systems. In this thesis, both continuous and discrete time model predictive controllers are studied.

172p runthenight05 01-03-2023 13 3   Download

Objectives: The main objective of this thesis is to study the problem of stability analysis and applications in control of discrete-time 2-D systems described by Roesser model with certain types of stochastic parameters. The research includes the methodology development and establishment of analysis and synthesis conditions of the following specified models.

120p thebadguys 08-06-2021 24 4   Download

Objectives: The main objectives of this thesis is to study the problem of stability analysis and applications in control of discrete-time 2-D systems described by Roesser model with certain types of stochastic parameters. The research includes the methodology development and establishment of analysis and synthesis conditions of the following specified models.

27p thebadguys 08-06-2021 31 4   Download

In this article the work of the components of information of protection tools on the occurring violations, their types and the elimination of these violations and the possible trajectory of a change over time of the functioning states of information of protection tools with a discrete time are researched.

10p lucastanguyen 01-06-2020 24 3   Download

EURASIP Journal on Applied Signal Processing 2003:12, 1229–1237 c 2003 Hindawi Publishing Corporation Nonlinear System Identification Using Neural Networks Trained with Natural Gradient Descent Mohamed Ibnkahla Electrical and Computer Engineering Department, Queen’s University, Kingston, Ontario, Canada K7L 3N6 Email: mohamed.ibnkahla@ece.queensu.ca Received 13 December 2002 and in revised form 17 May 2003 We use natural gradient (NG) learning neural networks (NNs) for modeling and identifying nonlinear systems with memory.

9p sting12 10-03-2012 45 6   Download

ON STABILITY ZONES FOR DISCRETE-TIME PERIODIC LINEAR HAMILTONIAN SYSTEMS ˘ VLADIMIR RASVAN Received 18 June 2004; Revised 8 September 2004; Accepted 13 September 2004 The main purpose of the paper is to give discrete-time counterpart for some strong (robust) stability results concerning periodic linear Hamiltonian systems.

13p sting12 10-03-2012 39 5   Download

PERIODIC SOLUTIONS OF A DISCRETE-TIME DIFFUSIVE SYSTEM GOVERNED BY BACKWARD DIFFERENCE EQUATIONS BINXIANG DAI AND JIEZHONG ZOU Received 22 November 2004 and in revised form 16 January 2005 A discrete-time delayed diffusion model governed by backward difference equations is investigated. By using the coincidence degree and the related continuation theorem as well as some priori estimates, easily verifiable sufficient criteria are established for the existence of positive periodic solutions. 1.

12p sting12 10-03-2012 50 7   Download

GLOBAL ATTRACTOR OF COUPLED DIFFERENCE EQUATIONS AND APPLICATIONS TO LOTKA-VOLTERRA SYSTEMS C. V. PAO Received 22 April 2004 This paper is concerned with a coupled system of nonlinear difference equations which is a discrete approximation of a class of nonlinear differential systems with time delays. The aim of the paper is to show the existence and uniqueness of a positive solution and to investigate the asymptotic behavior of the positive solution. Sufficient conditions are given to ensure that a unique positive equilibrium solution exists and is a global attractor of the difference system.

23p sting12 10-03-2012 49 6   Download

THERMODYNAMIC MODELING, ENERGY EQUIPARTITION, AND NONCONSERVATION OF ENTROPY FOR DISCRETE-TIME DYNAMICAL SYSTEMS WASSIM M. HADDAD, QING HUI, SERGEY G. NERSESOV, AND VIJAYSEKHAR CHELLABOINA Received 19 November 2004 We develop thermodynamic models for discrete-time large-scale dynamical systems. Specifically, using compartmental dynamical system theory, we develop energy flow models possessing energy conservation, energy equipartition, temperature equipartition, and entropy nonconservation principles for discrete-time, large-scale dynamical systems.

44p sting12 10-03-2012 57 7   Download

VECTOR DISSIPATIVITY THEORY FOR DISCRETE-TIME LARGE-SCALE NONLINEAR DYNAMICAL SYSTEMS WASSIM M. HADDAD, QING HUI, VIJAYSEKHAR CHELLABOINA, AND SERGEY NERSESOV Received 15 October 2003 In analyzing large-scale systems, it is often desirable to treat the overall system as a collection of interconnected subsystems. Solution properties of the large-scale system are then deduced from the solution properties of the individual subsystems and the nature of the system interconnections.

30p sting12 10-03-2012 54 6   Download

ON MONOTONICITY OF SOLUTIONS OF DISCRETE-TIME NONNEGATIVE AND COMPARTMENTAL DYNAMICAL SYSTEMS VIJAYSEKHAR CHELLABOINA, WASSIM M. HADDAD, JAMES M. BAILEY, AND JAYANTHY RAMAKRISHNAN Received 27 October 2003 Nonnegative and compartmental dynamical system models are widespread in biological, physiological, and pharmacological sciences. Since the state variables of these systems are typically masses or concentrations of a physical process, it is of interest to determine necessary and sufficient conditions under which the system states possess monotonic solutions.

11p sting12 10-03-2012 52 4   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Neural Network Adaptive Control for Discrete-Time Nonlinear Nonnegative Dynamical Systems

29p sting10 29-02-2012 46 5   Download