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IEEE Transactions on Automatic Control

Issue 4 • Date April 2005

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Displaying Results 1 - 22 of 22
  • Table of contents

    Publication Year: 2005, Page(s): c1
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  • IEEE Transactions on Automatic Control publication information

    Publication Year: 2005, Page(s): c2
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  • Scanning the issue

    Publication Year: 2005, Page(s): 421
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  • Lyapunov-based distributed control of systems on lattices

    Publication Year: 2005, Page(s):422 - 433
    Cited by:  Papers (28)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB) | HTML iconHTML

    We investigate the properties of systems on lattices with spatially distributed sensors and actuators. These systems arise in a variety of applications such as the control of vehicular platoons, formation of unmanned aerial vehicles, arrays of microcantilevers, and constellations of satellites. We use a Lyapunov-based framework as a tool for stabilization/regulation/asymptotic tracking of both lin... View full abstract»

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  • Characterization of co-observable languages and formulas for their super/sublanguages

    Publication Year: 2005, Page(s):434 - 447
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB) | HTML iconHTML

    We present fixed-point based characterization of several classes of co-observable languages that are of interest in the context of decentralized supervisory control of discrete-event systems, including C&P ∨ D&A co-observable languages, C&P co-observable languages, and D&A co-observable languages. We also provide formulas for computing super/sublanguages for each of these classes. In cases wher... View full abstract»

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  • A general formulation and solvability of the global robust output regulation problem

    Publication Year: 2005, Page(s):448 - 462
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB) | HTML iconHTML

    While the output regulation problem for linear systems accommodates both bounded and unbounded exogenous signals, the existing formulation of the output regulation problem for nonlinear systems only allows bounded exogenous signals produced by an exosystem with a neutrally stable equilibrium. In particular, when it comes to the robust output regulation problem, the only admissible exogenous signal... View full abstract»

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  • Polynomial synthesis of supervisor for partially observed discrete-event systems by allowing nondeterminism in control

    Publication Year: 2005, Page(s):463 - 475
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB) | HTML iconHTML

    We study the supervisory control of discrete-event systems (DESs) under partial observation using nondeterministic supervisors. We formally define a nondeterministic control policy and also a control & observation compatible nondeterministic state machine and prove their equivalence. The control action of a nondeterministic supervisor is chosen online, nondeterministically from among a set of choi... View full abstract»

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  • Diagnosability of stochastic discrete-event systems

    Publication Year: 2005, Page(s):476 - 492
    Cited by:  Papers (59)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB) | HTML iconHTML

    We investigate diagnosability of stochastic discrete-event systems. We define the notions of A- and AA-diagnosability for stochastic automata; these notions are weaker than the corresponding notion of diagnosability for logical automata introduced by Sampath et al. Through the construction of a stochastic diagnoser, we determine offline conditions necessary and sufficient to guarantee A-diagnosabi... View full abstract»

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  • Stabilization of time-delay systems with a Controlled time-varying delay and applications

    Publication Year: 2005, Page(s):493 - 504
    Cited by:  Papers (46)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB) | HTML iconHTML

    We study the stability of a linear system with a point-wise, time-varying delay. We assume that the delay varies around a nominal value in a deterministic way and investigate the influence of this variation on stability. More precisely we are interested in characterizing situations where the time-varying delay system is stable, whereas the system with constant delay is unstable. Our approach consi... View full abstract»

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  • Probabilistic distances between finite-state finite-alphabet hidden Markov models

    Publication Year: 2005, Page(s):505 - 511
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB) | HTML iconHTML

    This note considers the problem of evaluating a probabilistic distance between discrete-time, homogeneous, first-order, finite-state finite-alphabet hidden Markov models (HMMs). Our approach is based on a correspondence between probability measures and HMMs established in this note. Using a probability measure transformation technique, we obtain recursive expressions for the relative entropy betwe... View full abstract»

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  • Controllability of switched bilinear systems

    Publication Year: 2005, Page(s):511 - 515
    Cited by:  Papers (86)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB) | HTML iconHTML

    The controllability of switched bilinear systems (SBLSs) is considered. Three kinds of controllabilities, including weak controllability, approximate controllability, and global controllability, are investigated one by one. Sets of easily verifiable sufficient conditions are obtained for each case, which are applicable to a large class of switched bilinear systems. View full abstract»

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  • Robust normalization and stabilization of Uncertain Descriptor systems with norm-Bounded Perturbations

    Publication Year: 2005, Page(s):515 - 520
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB) | HTML iconHTML

    This note is concerned with the problem of the so-called quadratic normalization and stabilization via both proportional and derivative state feedback (PDSF) and proportional and derivative output feedback (PDOF) for uncertain descriptor systems with norm-bounded perturbations. Necessary and sufficient conditions are presented in terms of linear matrix inequalities (LMIs) or quadratic matrix inequ... View full abstract»

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  • Stabilization of nonaffine systems: a constructive method for polynomial systems

    Publication Year: 2005, Page(s):520 - 526
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB) | HTML iconHTML

    This note focuses on the stabilization of nonaffine systems described by continuous nonlinear ordinary differential equations. First, conditions of stabilization using control Lyapunov function give theoretical but nonconstructive and restrictive results. Second, some particular nonaffine systems are considered: This is polynomial system in the control variable of order two and three (a method is ... View full abstract»

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  • Controller parametric robustification using observer-based formulation and multimodel design technique

    Publication Year: 2005, Page(s):526 - 531
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB) | HTML iconHTML

    This note deals with controller robustification using equivalent observer based structure. The purpose of the method is to improve the parametric robustness of an initial controller, synthesized, for example, by using the LQ,H, or μ technique. The method uses equivalent Luenberger observer formulation and multimodel design procedure for the parametric robustification. First, t... View full abstract»

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  • A universal approach to queuing with distortion control

    Publication Year: 2005, Page(s):532 - 537
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB) | HTML iconHTML

    An efficient buffer-management algorithm is developed for queues that handle distortion-tolerant data under finite memory limitations. We avoid overflows and realize significant performance gains through the use of multiresolution source codes. These codes enable us to reduce the fidelity of signal descriptions in a controlled progressive manner. The proposed approach is universal, i.e., it works ... View full abstract»

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  • On centralized optimal control

    Publication Year: 2005, Page(s):537 - 538
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (67 KB) | HTML iconHTML

    It can be argued that the Holy Grail of control theory is the determination of the optimal feedback control law or simply the feedback control law. This is understandable given the huge success of the linear quadratic Gaussian (LQG) theory and applications for the past half-century. It is not an exaggeration to say that the entire aerospace industry, from the Apollo moon landing to the latest glob... View full abstract»

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  • Comments on "Variable structure control of discretized continuous-time Systems"

    Publication Year: 2005, Page(s):538 - 540
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB) | HTML iconHTML

    In this note, we point out that the control proposed in the above paper can actually work under milder assumption with respect to the size of uncertainty in the control input vector. View full abstract»

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  • Authors' reply [to comments on "Variable structure control of discretized continuous-time systems"]

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (38 KB) | HTML iconHTML

    In their comments (IEEE Trans. Autom. Control, vol. 50, no. 4, pp. 538-540, Apr. 2004), Paranjpe and Phadke show that the control law inside the sector we proposed (Corradini and Orlando, "Variable structure control of discretized continuous-time systems", IEEE Trans. Autom. Control, vol. 43,no.9,pp.1329-1334,Sep.1998) works even in the case when the control input vector has a not negligible uncer... View full abstract»

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  • Stability of Stationary Sets in Control Systems With Discontinuous Nonlinearities

    Publication Year: 2005, Page(s):542 - 543
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    Publication Year: 2005, Page(s): 544
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  • IEEE Control Systems Society Information

    Publication Year: 2005, Page(s): c3
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  • Blank page [back cover]

    Publication Year: 2005, Page(s): c4
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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

Full Aims & Scope

Meet Our Editors

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