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Automatic Control, IEEE Transactions on

Issue 10 • Date Oct. 2007

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Displaying Results 1 - 25 of 35
  • Table of contents

    Publication Year: 2007 , Page(s): C1 - C4
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  • IEEE Transactions on Automatic Control publication information

    Publication Year: 2007 , Page(s): C2
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  • Scanning the issue

    Publication Year: 2007 , Page(s): 1781 - 1782
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    Freely Available from IEEE
  • Inference-Based Ambiguity Management in Decentralized Decision-Making: Decentralized Control of Discrete Event Systems

    Publication Year: 2007 , Page(s): 1783 - 1794
    Cited by:  Papers (16)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (457 KB) |  | HTML iconHTML  

    Decentralized decision-making requires the interaction of various local decision-makers in order to arrive at a global decision. Limited sensing capabilities at each local site can create ambiguities in a decision-making process at each local site. We argue that such ambiguities are of differing gradations. We propose a framework for decentralized decision-making (applied to decentralized control ... View full abstract»

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  • On the Relation Between CCA and Predictor-Based Subspace Identification

    Publication Year: 2007 , Page(s): 1795 - 1812
    Cited by:  Papers (28)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (809 KB) |  | HTML iconHTML  

    In this paper, we investigate the relation between a recently proposed subspace method based on predictor identification (PBSID), known also as ldquowhitening filter algorithm,rdquo and the classical CCA algorithm. The comparison is motivated by i) the fact that CCA is known to be asymptotically efficient for time series identification and optimal for white measured inputs and ii) some recent resu... View full abstract»

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  • Approximability Properties for Second-Order Sliding Mode Control Systems

    Publication Year: 2007 , Page(s): 1813 - 1825
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (622 KB) |  | HTML iconHTML  

    New definitions of approximability are presented for nonlinear second-order sliding mode control systems. Such robustness properties are compared with those already known for first-order methods. Sufficient conditions are obtained for second-order regularization, a sliding error estimate is derived, and some relevant examples are discussed. View full abstract»

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  • Constrained Stochastic LQC: A Tractable Approach

    Publication Year: 2007 , Page(s): 1826 - 1841
    Cited by:  Papers (28)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (533 KB) |  | HTML iconHTML  

    Despite the celebrated success of dynamic programming for optimizing quadratic cost functions over linear systems, such an approach is limited by its inability to tractably deal with even simple constraints. In this paper, we present an alternative approach based on results from robust optimization to solve the stochastic linear-quadratic control (SLQC) problem. In the unconstrained case, the prob... View full abstract»

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  • Incorporating Robustness Requirements Into Antiwindup Design

    Publication Year: 2007 , Page(s): 1842 - 1855
    Cited by:  Papers (43)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (674 KB) |  | HTML iconHTML  

    This paper treats the problem of synthesizing antiwindup compensators that are able to handle plant uncertainty in addition to controller saturation. The uncertainty considered is of the frequency-weighted additive type, often encountered in linear robust control theory, and representative of a wide variety of uncertainty encountered in practice. The main results show how existing linear matrix in... View full abstract»

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  • Nominally Robust Model Predictive Control With State Constraints

    Publication Year: 2007 , Page(s): 1856 - 1870
    Cited by:  Papers (21)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (683 KB) |  | HTML iconHTML  

    In this paper, we present robust stability results for constrained discrete-time nonlinear systems using a finite-horizon model predictive control (MPC) algorithm for which we do not require the terminal cost to have any particular properties. We introduce a definition that attempts to characterize the robustness properties of the MPC optimization problem. We assume the systems under consideration... View full abstract»

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  • On Characterizations of Exponential Stability of Nonlinear Discrete Dynamical Systems on Bounded Regions

    Publication Year: 2007 , Page(s): 1871 - 1881
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (406 KB) |  | HTML iconHTML  

    In this paper, we discuss the quantitative characterization problems of the exponential stability and trajectory convergence property of nonlinear discrete dynamical systems on a bounded set of the state space. Through introducing two new concepts-the Lip constant of a nonlinear operator and strongly equivalent metrics of a norm-we show that the nonlinear discrete dynamical systems are exponential... View full abstract»

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  • Analysis of Closed-Loop Performance and Frequency-Domain Design of Compensating Filters for Sliding Mode Control Systems

    Publication Year: 2007 , Page(s): 1882 - 1891
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (361 KB) |  | HTML iconHTML  

    For a sliding mode (SM) system containing parasitic dynamics, a model of chattering and a model of the averaged motions of the order equal to the original order of the system are obtained via the use of the locus of a perturbed relay system (LPRS) method. The latter model proves that the averaged motions in an SM system differ from those in the reduced-order model. In particular, such phenomena as... View full abstract»

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  • Cheap Suboptimal Control of an Integral Sliding Mode for Uncertain Systems With Delays

    Publication Year: 2007 , Page(s): 1892 - 1898
    Cited by:  Papers (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (310 KB) |  | HTML iconHTML  

    A cheap control problem for a system with state delays and matched uncertainties is studied. First, such a cheap control problem is considered for the nominal linear system associated with the original one. A suboptimal state-feedback composite control for this problem is constructed using a singular perturbation technique. Employing this composite control in the nominal system generates the subop... View full abstract»

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  • Feature Extraction by Gaussian Mixture With Rigidity Constraint

    Publication Year: 2007 , Page(s): 1899 - 1907
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2846 KB) |  | HTML iconHTML  

    The performance of feature-aided tracking (FAT) relies largely on the quality of features extracted from signature sensors. In our previous work, we introduced a new FAT algorithm for tracking with ground moving target indicator (GMTI) and high resolutional range (HRR) measurements, where features were extracted from an HRR sensor using the technique of mixture density estimation. Although satisfa... View full abstract»

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  • A Unified Adaptive Iterative Learning Control Framework for Uncertain Nonlinear Systems

    Publication Year: 2007 , Page(s): 1907 - 1913
    Cited by:  Papers (33)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (630 KB) |  | HTML iconHTML  

    In this note, we propose a unified framework for adaptive iterative learning control design for uncertain nonlinear systems. It is shown that if a Lyapunov based adaptive control law is available for the system under consideration and the Lyapunov function satisfies certain conditions, it is straightforward to extend the adaptive controller to handle repetitive systems operating over a finite time... View full abstract»

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  • Choice of Weighting for Averaged Nonparametric Transfer Function Estimates

    Publication Year: 2007 , Page(s): 1914 - 1920
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (272 KB) |  | HTML iconHTML  

    The statistical properties of nonparametric transfer function estimates formed via the weighted sum of empirical transfer function estimates are considered. In the case that the system input is considered deterministic, it is shown that the weighting corresponding to the classical averaged periodogram estimate is optimal. A similar asymptotic result is derived for the case where the input is consi... View full abstract»

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  • Asymptotic Stability of a Rate Control System With Communication Delays

    Publication Year: 2007 , Page(s): 1920 - 1925
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1103 KB) |  | HTML iconHTML  

    We study the issue of asymptotic stability of a family of rate control algorithms with communication delays between network elements and extend our earlier results: First, we derive delay-dependent stability conditions with a family of well-known utility and resource price functions when a finite upper bound is known on the feedback delay. These conditions are shown to be consistent with kn... View full abstract»

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  • A KYP Lemma for LMI Regions

    Publication Year: 2007 , Page(s): 1926 - 1930
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (386 KB) |  | HTML iconHTML  

    In this technical note, a Kalman-Yakubovich-Popov (KYP) lemma is discussed for linear matrix inequality (LMI) regions. Sufficient quadratic stability conditions are developed for an uncertain linear system subject to time varying uncertainty satisfying a quadratic inequality. Furthermore, the quadratic stability conditions are shown to guarantee the satisfaction of a frequency domain inequality. View full abstract»

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  • Static Output Feedback Control Synthesis for Linear Systems With Time-Invariant Parametric Uncertainties

    Publication Year: 2007 , Page(s): 1930 - 1936
    Cited by:  Papers (48)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (229 KB) |  | HTML iconHTML  

    This technical note is concerned with the problem of designing robust static output feedback controllers for linear discrete and continuous-time systems with time-invariant polytopic uncertainties. Sufficient conditions for static output feedback stabilizing controller designs are given in terms of solutions to a set of linear matrix inequalities. Furthermore, the results are also extended to H View full abstract»

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  • Optimality of a Two-Threshold Feedback Control for a Manufacturing System With a Production Dependent Failure Rate

    Publication Year: 2007 , Page(s): 1937 - 1942
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (362 KB) |  | HTML iconHTML  

    We consider a Markovian, failure prone, single machine, single part-type, fluid flow, manufacturing system. The failure rate depends on the production rate through a non decreasing, piecewise constant function which may assume two values. The problem is to minimize a long term average expected cost which penalizes both the presence of waiting customers and the inventory surplus. We derive and prov... View full abstract»

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  • Partial-Fraction Expansion Based Frequency Weighted Model Reduction Technique With Error Bounds

    Publication Year: 2007 , Page(s): 1942 - 1948
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (327 KB) |  | HTML iconHTML  

    In this technical note, we present a new frequency weighted balancing related technique which is based on a parametrized combination of the unweighted balanced truncation technique [9] ,[8] and the partial fraction expansion technique [11] . The reduced-order models which are guaranteed to be stable in the case of double-sided weighting, are obtained by either direct truncation or singular perturb... View full abstract»

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  • Zames-Falb Multipliers for Quadratic Programming

    Publication Year: 2007 , Page(s): 1948 - 1951
    Cited by:  Papers (19)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (150 KB) |  | HTML iconHTML  

    In constrained linear model predictive control, a quadratic program must be solved on-line at each control step, and this constitutes a nonlinearity. If zero is a feasible point for this quadratic program then the resultant nonlinearity is sector bounded. We show that if the nonlinearity is static then it is also monotone and slope restricted; hence, we show the existence of Zames-Falb multipliers... View full abstract»

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  • Constrained Infinite-Horizon Linear Quadratic Regulation of Discrete-Time Systems

    Publication Year: 2007 , Page(s): 1951 - 1958
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (305 KB) |  | HTML iconHTML  

    We are concerned with the output norm-constrained infinite-horizon linear quadratic regulation problem, where the underlying state-control constraints are specified by curved, rather than polyhedral, surfaces. Each suboptimal problem admits an exact convex synthesis condition expressed by an increasing union of linear matrix inequalities and results in an eventually time-invariant controller satis... View full abstract»

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  • Fixed-Order Robust H Controller Design With Regional Pole Assignment

    Publication Year: 2007 , Page(s): 1959 - 1963
    Cited by:  Papers (23)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (230 KB) |  | HTML iconHTML  

    In this technical note, the problem of designing fixed-order robust Hinfin controllers is considered for linear systems affected by polytopic uncertainty. A polynomial method is employed to design a fixed-order controller that guarantees that all the closed-loop poles reside within a given region of the complex plane. In order to utilize the freedom of the controller design, an H... View full abstract»

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  • An Algorithm for Stabilization of Fractional-Order Time Delay Systems Using Fractional-Order PID Controllers

    Publication Year: 2007 , Page(s): 1964 - 1969
    Cited by:  Papers (48)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1577 KB) |  | HTML iconHTML  

    This technical note presents a solution to the problem of stabilizing a given fractional-order system with time delay using fractional-order PllambdaDmu controllers. It is based on determining a set of global stability regions in the (kp, Ki, Kd)-space corresponding to the fractional orders lambda and mu in the range of (0, 2) and then choosin... View full abstract»

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  • Optimal Signaling Policies for Decentralized Multicontroller Stabilizability Over Communication Channels

    Publication Year: 2007 , Page(s): 1969 - 1974
    Cited by:  Papers (22)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (262 KB) |  | HTML iconHTML  

    In this note, we study the problem of distributed control over communication channels, where a number of distributed stations collaborate to stabilize a linear system. We quantify the rate requirements and obtain optimal signaling, coding and control schemes for decentralized stabilizability in such multicontroller systems. We show that in the absence of a centralized decoder at the plant, there i... 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

Full Aims & Scope

Meet Our Editors

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