time delay systems ppt

... Introduction 1.1 Classes of systems to be considered It should be noticed that in some systems we must consider their character of dynamic and static state at the same time Singular systems (also referred ... classes of linear continuous and discrete time delayed systems Here, we present a number of new results concerning stability properties of this class of systems in the sense of Lyapunov and non-Lyapunov ... control signals, when finite time or practical stability concept are concerned 2 Singular (descriptor) systems 2.1 Continuous singular systems 2.1.1 Continuous singular systems – stability in the

Ngày tải lên: 20/06/2014, 07:20

... uncertain time-delay systems,” IEEE Conf on Systems, Man, and Cybern., pp 2266-2271, 2003 [14] C C Chiang, “Adaptive fuzzy sliding mode control for time-delay uncertain large-scale systems,” ... stochastic systems with time-varying delays,” IEEE Trans Automatic control, vol 48, no 2, pp 286-289, 2003 [5] C Hua, X Guan, and P Shi, “Robust adaptive control for uncertain time-delay systems,” ... Circuit and Systems-I: Fundamental Theory and Applications, vol 50, no 6, pp 826-830, 2003 [8] F Hong, S S Ge, and T H Lee, “Delay-independent sliding mode control of nonlinear time-delay systems,”

Ngày tải lên: 20/06/2014, 07:20

... assumptions Noticably, the linear delayed system of Δ given in Eq (22) is with time-dependent coefficients The specific example shown in Section 4 with coupled modified Mackey-Glass systems will demonstrate ... given to verify for synchronization of completely nonidentical MTDSs; the multidelay Mackey-Glass and multidelay Ikeda systems 4 Numerical simulation for synchronous schemes on the proposed models ... Section 3.1.1 Let’s consider the synchronization of coupled six-delays Mackey-Glass systems with the coupling signal constituted by the four-delays components The dynamical equations are as Master:

Ngày tải lên: 20/06/2014, 07:20

... variable delay times and synchronization in time-delayed systems, Chaos, Solitons and Fractals 25: 325–331. Shahverdiev, E M & Shore, K A (2005) Generalized synchronization of time-delayed systems, ... (Chopra, 2009), and the issue of time delay for robotic systems has been studied through the passivity property For systems with time delays, both delay dependent and delay independent control strategies ... Bezruchko, B P (2005) Reconstruction of time-delayed feedback systems from time series, Physica D 203: 209–223 Pyragas, K (1998a) Synchronization of coupled time-delay systems: Analytical estimations,

Ngày tải lên: 20/06/2014, 07:20

... . (23) 10 [...]... analysis of time- delay systems Automatica, 39:15–20, 2003 [10] V L Kharitonov and E Plischke Lyapunov matrices for time- delay systems Report ???, Zentrum f¨ r ... functionals can be used to obtain exponential bounds for the solutions of time-invariant linear delay systems. Keywords: time delay system, exponential estimate, Lyapunov-Krasovskii func- tional. ... with time delays Prikl Mat Meh., 20:315–327, 1956 [12] B S Razumikhin On stability of systems with a delay Prikl... Curtain and H J Zwart An Introduction to Infinite-Dimensional Linear Systems

Ngày tải lên: 06/07/2014, 21:20

... 1STABILIZATION AND CONTROL OF UNSTABLE TIME DELAY SYSTEMS LEE SEE CHEK NATIONAL UNIVERSITY OF SINGAPORE 2012 Trang 2STABILIZATION AND CONTROL OF UNSTABLE TIME DELAY SYSTEMS LEE SEE CHEK (B.Eng ... for stable delay-free systems have been well developed inresearch society and widely adopted in industry Study of time delay systems remains ahot research topic while the unstable systems are ... literature, whether a first-orderunstable time delay process can be stabilized or not, depends on the time delay magni-tude When the normalized time delay exceeds 2, a PID controller has no stabilizationsolution

Ngày tải lên: 09/09/2015, 17:57

... of a delay element is given bye −sh 1.2 Examples of Time-delay Systems Some typical examples of time-delay systems in engineering are discussed here.1.2.1 Shower A simple example of a time-delay ... Systems 7 1.2.7 Biosystems 8 1.3 A Brief Review of the Control of Time-delay Systems 9 1.4 Overview of This Book 10 Part I Controller Design 2 Classical Control of Time-delay Systems ... of Time-delay SystemsTrang 3Qing-Chang Zhong, PhDDepartment of Electrical Engineering and Electronics The University of Liverpool Robust control of time-delay systems 1.Robust control 2.Time delay

Ngày tải lên: 07/09/2020, 15:53

... pagesdoi:10.1155/2010/738306 Research Article The Permanence and Extinction of a Discrete Predator-Prey System with Time Delay and Feedback Controls Qiuying Li, Hanwu Liu, and Fengqin Zhang Department of Mathematics, ... any medium, provided the original work is properly cited A discrete predator-prey system with time delay and feedback controls is studied Sufficient conditions which guarantee the predator and the ... period of time or not In the language of control variables, we call the disturbance functions as control variables In 1993, Gopalsamy and Weng 13 introduced a control variable into the delay logistic

Ngày tải lên: 21/06/2014, 11:20

... problems for systems of ordinary differential equations with constant coefficients and a single delay, assuming that these solutions satisfy the initial and boundary conditions Utilizing a delayed matrix ... to find systems of differential equations with delay such that this problem can be solved directly Below, we consider the case of a the Cauchy matrix is solved analytically thanks to a delayed ... expression: e At τ t/τ 1 n0 single delay it is a matrix polynomial, depending on the time interval in which it is considered It is easy ˙ By integrating the delayed matrix exponential, we get

Ngày tải lên: 21/06/2014, 16:20

... macroscopic subsystems knownas compartments The range of applications of nonnegative systems and compartmentalsystems includes pharmacological systems, queuing systems, stochastic systems whosestate ... whosestate variables represent probabilities, ecological systems, economic systems, demographicsystems, telecommunications systems, and transportation systems, to cite but a few examples.Due to the severe ... ≥ k0, to2.10 is nonnegative. time-varying discrete-time system2.10 as an autonomous discrete-time nonlinear system by appending another state to represent time Specifically, defining yk

Ngày tải lên: 22/06/2014, 11:20

... Article Analysis and Compensation of Transmitter and Receiver I/Q Imbalances in Space-Time Coded Multiantenna OFDM Systems Yaning Zou, Mikko Valkama, and Markku Renfors Institute of Communications ... of the transceiver I and Q chains This paper studies the performance of space-time coded (STC) multiantenna OFDM systems under I/Q imbalance, covering both the transmitter and the receiver sides ... is assumed, being an essential ingredient in future wideband wireless systems As a practical example, the Alamouti space-time coded OFDM system with two transmit and M receive antennas is examined

Ngày tải lên: 22/06/2014, 19:20

... Damji and T Le-Ngoc, “Adaptive downlink multi-carrier resource allocation for real-time multimedia traffic in cellu-lar systems,” in Proceedings of IEEE International Conference on Communications (ICC ... (using the algorithms inSection 5) is evaluated for real-time data services in different shadowing environments 2 RESOURCE ALLOCATION IN OFDM SYSTEMS The aim of resource allocation is to deliver the ... throughput, and/or delay Trang 75 ALGORITHMS FOR RESOURCE ALLOCATIONIn this section, we discuss algorithms for the two strategies that we implement for the performance evaluation of real-time data services

Ngày tải lên: 22/06/2014, 22:20

... interval of time between a stimulation and the system response [1] This interval of time is often known as time delay of a system Since time-delay unavoidably occurs in engineering systems and ... Trang 1PRACTICAL STABILITY OF LINEAR TIMEPRACTICAL STABILITY OF LINEAR TIME VARYING VARYING VARYING DELAY SYSTEMS DELAY SYSTEMS Le Van Hien Hanoi National University of Education ... practical stability of linear time-varying delay systems in the presence of bounded disturbances Based on some comparison techniques associated with positive systems, explicit delay-independent conditions

Ngày tải lên: 13/01/2020, 12:20

... verification of AI planning systems Trang 2issues and to create a mathematical theory of AI planning systems that operate in dynamic, uncertain, and time-critical environments (real time environments) ... analysis, and design techniques for these systems AI planning systems are examples of AI problem solving systems When comparing the characteristics of AI and non-AI systems, one can make the following ... greater extent than in conventional systems The result is that a higher degree of autonomy sometimes exists in AI systems than in conventional ones [8,9] AI planning systems use models for the problem

Ngày tải lên: 14/12/2013, 12:15

... File Systems ✦ Increase apparent volume size without hardware changes: You’ll probably find that in many situations, user storage-space requirements will surpass physical storage capacity over time, ... however, is that hard disks are getting cheaper all the time, and 4667-8 ch21.f.qc 5/15/00 2:18 PM Page 781 Chapter 21 ✦ Windows 2000 File Systems their capacity is almost doubling every few months ... removable storage If a file needs to be accessed, it can be recalled from the library at any time By the time the files are relocated, they will not be needed as urgently as they were on the day

Ngày tải lên: 17/01/2014, 08:20

... SQLstatement understood by the non-Oracle system ■ Procedural Access Procedural systems, like messaging and queuing systems, are accessed from an Oracle8 server using PL/SQL remote procedure calls ... Security with RSA Public Key Cryptography, MD2, MD5, and RC4r. Trang 3How Oracle8 Distributed Database Systems is Organized Preface-xviConventions Used in This Guide Preface-xviiiYour Comments Are ... 3-31 Manually Committing or Rolling Back In-Doubt Transactions 3-32 Changing Connection Hold Time 3-33 Setting a Limit on Distributed Transactions 3-33 Trang 6The Recoverer (RECO) Background

Ngày tải lên: 17/01/2014, 09:20

... For example, to handle digital signals the delay units and the adders should use latches and digital adders; on theother hand, to handle analog signals delay units and adders using switched capacitor ... have eight discretechannel systems and six channels to the screen in the front and two channels in the rear as surroundspeakers shown in Fig.43.8 We have discrete channel systems, making a good channel ... quantization noise Q(z) is white noise, and the magnitude |Q(Wt)| is D2/3, which corresponds to four times in power of Eq (43.1) since the step size is twice that Defineq which is 2p · f max /f s,

Ngày tải lên: 22/01/2014, 12:20

... element of that forecast is theestimated cost of weapon systems, which typically take many years toacquire and remain in operation for a long time To make those esti-mates, the Office of the Secretary ... weapon systems led tocloser attention to comparing final costs with estimates to improvemanagement of the U.S defense establishment This closer scrutinycoincided with the advent of military systems ... Initiatives.” The purpose of the project is to improve the tools used to estimate the costs offuture weapon systems It focuses on how recent technical, manage-ment, and government policy changes affect cost

Ngày tải lên: 17/02/2014, 22:20

... their distribution at cell division Maintenance systems of the third type [i.e the so-called ‘postsegregational killer systems’ or toxin–anti-toxin (TA) systems] are based, with few exceptions, on ... replication and that they do not influence theplasmid copy number [4] Maintenance systems of the first type, known as a partition systems, actively dis-tribute these copies at the onset of cell division, ... plasmidsmay contain one or a combination of three possibleauxiliary maintenance systems [3] The common signa-ture of these systems is that they are dispensable for Keywords bacterial RNases, gene regulation,

Ngày tải lên: 18/02/2014, 04:20

... information systems 1 Introduction Project management information systems (PMIS) are widely regarded as an important building block in today’s project management [1] The nature of these systems has ... single-user/single-project man-agement systems to complex, distributed, multi-functional systems that no longer only cover project planning [2] Information systems research has to date only partly ... work 2.1 The role of information models in the development of information systems Information systems (IS) are socioeconomic systems that comprise software, hardware, and the surrounding organizational

Ngày tải lên: 18/02/2014, 07:20