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IEEE Transactions on Automatic Control

Issue 11 • Date Nov. 2004

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Displaying Results 1 - 25 of 33
  • Table of contents

    Publication Year: 2004, Page(s):c1 - c4
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  • IEEE Transactions on Automatic Control publication information

    Publication Year: 2004, Page(s): c2
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  • Scanning the issue

    Publication Year: 2004, Page(s): 1885
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  • Decentralized supervisory control with conditional decisions: supervisor existence

    Publication Year: 2004, Page(s):1886 - 1904
    Cited by:  Papers (43)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB) | HTML iconHTML

    Most of the results on decentralized supervisory control are based on supervisors that make unconditional decisions: "enable" and "disable." In this paper, we introduce and study the properties of decentralized supervisory control architectures where supervisors are allowed to make conditional decisions in addition to unconditional decisions. The conditional decisions we consider are of the form: ... View full abstract»

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  • Receding horizon finite memory controls for output feedback controls of state-space systems

    Publication Year: 2004, Page(s):1905 - 1915
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB) | HTML iconHTML

    In this paper, a new type of control, called a receding horizon finite memory control (RHFMC) or a model predictive finite memory control, is proposed as an optimal output feedback control for stochastic state-space systems. Constraints such as linearity, finite memory structure, and unbiasedness from the optimal state feedback control are required in advance, and in addition, the performance crit... View full abstract»

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  • Input-output stabilization of linear systems on Z

    Publication Year: 2004, Page(s):1916 - 1928
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB) | HTML iconHTML

    A formal framework is set up for the discussion of generalized autoregressive with external input models of the form Ay=Bu, where A and B are linear operators, with the main emphasis being on signal spaces consisting of bounded sequences parametrized by the integers. Different notions of stability are explored, and topological notions such as the idea of a closed system are linked with questions o... View full abstract»

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  • Convergence of the iterative Hammerstein system identification algorithm

    Publication Year: 2004, Page(s):1929 - 1940
    Cited by:  Papers (100)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB) | HTML iconHTML

    The convergence of the iterative identification algorithm for the Hammerstein system has been an open problem for a long time. In this paper, a detailed study is carried out and various convergence properties of the iterative algorithm are derived. It is shown that the iterative algorithm with normalization is convergent in general. Moreover, it is shown that convergence takes place in one step (t... View full abstract»

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  • Output regulation of linear systems with bounded continuous feedback

    Publication Year: 2004, Page(s):1941 - 1953
    Cited by:  Papers (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB) | HTML iconHTML

    This paper studies the classical problem of output regulation for linear systems subject to control constraint. The asymptotically regulatable region, the set of all initial conditions of the plant and the exosystem for which output regulation is possible, is characterized in terms of the controllable region of the antistable subsystem of the plant. Continuous output regulation laws, of both state... View full abstract»

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  • Control of mobile communication systems with time-varying channels via stability methods

    Publication Year: 2004, Page(s):1954 - 1962
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB) | HTML iconHTML

    Consider the forward link of a mobile communications system with a single transmitter and connecting to K destinations via randomly varying channels. Data arrives in some random way and is queued according to the K destinations until transmitted. Time is divided into small scheduling intervals. Current systems can estimate the channel (e.g, via pilot signals) and use this information for schedulin... View full abstract»

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  • Formations of vehicles in cyclic pursuit

    Publication Year: 2004, Page(s):1963 - 1974
    Cited by:  Papers (294)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB) | HTML iconHTML

    Inspired by the so-called "bugs" problem from mathematics, we study the geometric formations of multivehicle systems under cyclic pursuit. First, we introduce the notion of cyclic pursuit by examining a system of identical linear agents in the plane. This idea is then extended to a system of wheeled vehicles, each subject to a single nonholonomic constraint (i.e., unicycles), which is the principa... View full abstract»

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  • Nonlinear control of feedforward systems with bounded signals

    Publication Year: 2004, Page(s):1975 - 1990
    Cited by:  Papers (76)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB) | HTML iconHTML

    The stabilization problem for a class of nonlinear feedforward systems is solved using bounded control. It is shown that when the lower subsystem of the cascade is input-to-state stable and the upper subsystem not exponentially unstable, global asymptotic stability can be achieved via a simple static feedback having bounded amplitude that requires knowledge of the "upper" part of the state only. T... View full abstract»

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  • On improved delay-dependent robust control for uncertain time-delay systems

    Publication Year: 2004, Page(s):1991 - 1995
    Cited by:  Papers (75)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB) | HTML iconHTML

    In this note, a new stabilization criterion for uncertain time-delay systems is proposed. Based on the Lyapunov method, the stabilization criterion is derived in terms of matrix inequalities which can be easily solved by efficient convex optimization algorithms. Numerical examples are included to show the effectiveness of the proposed method. View full abstract»

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  • Observer-based dynamic surface control for a class of nonlinear systems: an LMI approach

    Publication Year: 2004, Page(s):1995 - 2001
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB) | HTML iconHTML

    This note presents a new analysis method to design an observer-based dynamic surface controller (ODSC) for a class of nonlinear systems. While the separation principle from linear system theory does not generally hold for nonlinear systems, a separation principle for the ODSC systems will be shown for a class of nonlinear systems, thus enabling the independent design of the observer and DSC. Furth... View full abstract»

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  • Direct adaptive control for a class of MIMO nonlinear systems using neural networks

    Publication Year: 2004, Page(s):2001 - 2006
    Cited by:  Papers (39)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB) | HTML iconHTML

    In this note, direct adaptive neural network (NN) control is studied for a class of multiple-input-multiple-output nonlinear systems based on input-output discrete-time model with unknown interconnections between subsystems. By finding an orthogonal matrix to tune the NN weights, the closed-loop system is proven to be semiglobally uniformly ultimately bounded. The control performance of the closed... View full abstract»

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  • Supervisory control of partially observable marked graphs

    Publication Year: 2004, Page(s):2007 - 2011
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB) | HTML iconHTML

    This note presents a control synthesis approach for discrete event systems modeled by marked graphs with unobservable transitions. It solves forbidden state problems characterized by a set of general mutual exclusion constraints. We prove that for any sequence of observable transitions, there exist a unique marking from which all other possible current markings can be reached unobservably. This sa... View full abstract»

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  • H-optimal preview controller and its performance limit

    Publication Year: 2004, Page(s):2011 - 2017
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB) | HTML iconHTML

    In this note, H-optimal preview control problem is discussed. The problem is reduced to finite-dimensional H problem, whose solution algorithm is well known. Also, the performance limit by the optimal controller is clearly explained. View full abstract»

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  • Complementary results on the stability bounds of singularly perturbed systems

    Publication Year: 2004, Page(s):2017 - 2021
    Cited by:  Papers (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB) | HTML iconHTML

    In this note, we will provide a new systematic approach to characterize and compute the stability bound of a singularly perturbed linear system. The approach is based on the feedback system representation of an additional matrix perturbation problem. The idea is to change the stability bound problem to the stability problem of an underlying feedback system. This approach allows multiple choices in... View full abstract»

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  • Robust controllability for a class of uncertain linear time-invariant MIMO systems

    Publication Year: 2004, Page(s):2022 - 2027
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB) | HTML iconHTML

    This note studies the problem of robust controllability of linear time invariant multiple-input-multiple-output systems with A being or A and B both being sign-invariant interval matrices. For controllability, sufficient conditions as well as necessary and sufficient conditions based on interval division method are presented. The note also provides a way to handle interval systems that are not sig... View full abstract»

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  • DQIT: μ-synthesis without D-scale fitting

    Publication Year: 2004, Page(s):2028 - 2032
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB) | HTML iconHTML

    A new approach called D-Q iteration (DQIT) for synthesizing robust H controllers is proposed to avoid D-scale fitting in D-K iteration (DKIT). Each iteration includes a D-step and a Q-step. In the D-step, the D-scale at each frequency is optimized as in DKIT, but D-scale fitting is not required. In the Q-step, the scaled H problem is approximated by a finite-dim... View full abstract»

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  • Controller discretization: a gap metric framework for analysis and synthesis

    Publication Year: 2004, Page(s):2033 - 2039
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB) | HTML iconHTML

    Although techniques for directly synthesising sampled-data (SD) compensators are available in the literature, feedback controller design is perhaps best understood in a purely continuous-time setting. As such, a feedback controller is often designed in the continuous-time domain and then discretized for digital implementation. It is important for the discretization step involved to yield an SD app... View full abstract»

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  • Design of robust static output feedback for large-scale systems

    Publication Year: 2004, Page(s):2040 - 2044
    Cited by:  Papers (58)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB) | HTML iconHTML

    The design of static output feedback is of fundamental importance in control theory. In this note, we propose a new approach to this problem, based on linear matrix inequalities. A distinguishing feature of the method is its ability to handle large-scale problems with additive nonlinearities. The resulting control is robust with respect to uncertainties, and can incorporate several types of inform... View full abstract»

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  • A direct algebraic approach to observer design under switching measurement equations

    Publication Year: 2004, Page(s):2044 - 2049
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB) | HTML iconHTML

    Based on the algebraic transformation of a switched linear measurement equation into a nonlinear, yet deterministic, equation, an asymptotic state observer is constructed for discrete-time linear systems whose observations are generated according to randomly switching measurement modes. The observer, which combines the algebraic transformation with a Newton observer applied to the resulting nonlin... View full abstract»

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  • On the structure of the solutions of discrete-time algebraic Riccati equation with singular closed-loop matrix

    Publication Year: 2004, Page(s):2049 - 2054
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB) | HTML iconHTML

    The classical discrete-time algebraic Riccati equation (DARE) is considered in the case when the corresponding closed-loop matrix is singular. It is shown that in this case all the symmetric solutions of the DARE coincide along some directions. A parametrization of the set of solutions in terms of a reduced-order DARE is then obtained. This parametrization provides an algorithm (that appears to be... View full abstract»

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  • Nonlinear scheduled anti-windup design for linear systems

    Publication Year: 2004, Page(s):2055 - 2061
    Cited by:  Papers (57)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB) | HTML iconHTML

    The nonlinear L2 anti-windup framework introduced in Teel and Kapor (1997) reduces the anti-windup synthesis problem to a state feedback synthesis problem for linear systems with input saturation and input matched L2 disturbances. In this note, based on the structure proposed in that previous paper, we provide a linear matrix ineqaulity (LMI) formulation of high-performance a... View full abstract»

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  • Stochastic H tracking with preview for state-multiplicative systems

    Publication Year: 2004, Page(s):2061 - 2068
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB) | HTML iconHTML

    The problem of finite-horizon H tracking for linear time-varying systems with stochastic parameter uncertainties is investigated. We consider three tracking patterns depending on the nature of the reference signal, i.e., whether it is perfectly known in advance, measured on line or previewed in a fixed time-interval ahead. The stochastic uncertainties appear in both the dynamic a... View full abstract»

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Aims & Scope

In the IEEE Transactions on Automatic Control, the IEEE Control Systems Society publishes high-quality papers on the theory, design, and applications of control engineering.  Two types of contributions are regularly considered

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Meet Our Editors

Editor-in-Chief
P. J. Antsaklis
Dept. Electrical Engineering
University of Notre Dame