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IEEE Transactions on Automatic Control

Issue 1 • Date Jan. 2006

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Displaying Results 1 - 25 of 30
  • Table of contents

    Publication Year: 2006, Page(s):c1 - c4
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  • IEEE Transactions on Automatic Control publication information

    Publication Year: 2006, Page(s): c2
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  • Scanning the issue

    Publication Year: 2006, Page(s): 1
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  • Quantized control via locational optimization

    Publication Year: 2006, Page(s):2 - 13
    Cited by:  Papers (38)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB) | HTML iconHTML

    This paper studies state quantization schemes for feedback stabilization of control systems with limited information. The focus is on designing the least destabilizing quantizer subject to a given information constraint. We explore several ways of measuring the destabilizing effect of a quantizer on the closed-loop system, including (but not limited to) the worst-case quantization error. In each c... View full abstract»

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  • Direct nonlinear control design: the virtual reference feedback tuning (VRFT) approach

    Publication Year: 2006, Page(s):14 - 27
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (800 KB) | HTML iconHTML

    This paper introduces the virtual reference feedback tuning (VRFT) approach for controller tuning in a nonlinear setup. VRFT is a data-based method that permits to directly select the controller based on data, with no need for a model of the plant. It is based on a global model reference optimization procedure and, therefore, does not require to access the plant for experiments many times so as to... View full abstract»

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  • Bootstrap control

    Publication Year: 2006, Page(s):28 - 37
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB) | HTML iconHTML

    In this paper, we present a new way to control linear stochastic systems. The method is based on statistical bootstrap techniques. The optimal future control signal is derived in such a way that unknown noise distribution and uncertainties in parameter estimates are taken into account. This is achieved by resampling from existing data when calculating statistical distributions of future process va... View full abstract»

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  • Frequency response estimation for NCFs of an MIMO plant from closed-loop time-domain experimental data

    Publication Year: 2006, Page(s):38 - 51
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB) | HTML iconHTML

    Frequency response estimation from closed-loop time-domain experimental data is investigated in this paper for normalized coprime factors (NCF) of a multiple-input-multiple-output (MIMO) plant. Based on a linear fractional transformation (LFT) representation for all the NCFs of plants internally stabilizable by a known controller, this estimation problem is converted into the open-loop nonparametr... View full abstract»

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  • Stochastic routing in ad-hoc networks

    Publication Year: 2006, Page(s):52 - 70
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB) | HTML iconHTML

    We investigate a network routing problem where a probabilistic local broadcast transmission model is used to determine routing. We discuss this model's key features, and note that the local broadcast transmission model can be viewed as soft handoff for an ad-hoc network. We present results showing that an index policy is optimal for the routing problem. We extend the network model to allow for con... View full abstract»

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  • Nonsmooth H synthesis

    Publication Year: 2006, Page(s):71 - 86
    Cited by:  Papers (114)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB) | HTML iconHTML

    We develop nonsmooth optimization techniques to solve H synthesis problems under additional structural constraints on the controller. Our approach avoids the use of Lyapunov variables and therefore leads to moderate size optimization programs even for very large systems. The proposed framework is versatile and can accommodate a number of challenging design problems including stat... View full abstract»

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  • A less conservative robust stability test for linear uncertain time-delay systems

    Publication Year: 2006, Page(s):87 - 91
    Cited by:  Papers (128)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB) | HTML iconHTML

    This note concerns with the robust stability of linear uncertain systems with state-delay. The uncertainty is assumed to be of polytopic type. A less conservative delay-dependent linear matrix inequality (LMI) method is presented based on a new Lyapunov-Krasovskii functional. The present method incorporates a relaxed parameter-dependent technique combined with a recently proposed idea of introduci... View full abstract»

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  • Optimal control for linear systems with multiple time delays in control input

    Publication Year: 2006, Page(s):91 - 97
    Cited by:  Papers (41)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB) | HTML iconHTML

    This note presents the optimal linear-quadratic (LQ) regulator for a linear system with multiple time delays in the control input. Optimality of the solution is proved in two steps. First, a necessary optimality condition is derived from the maximum principle. Then, the sufficiency of this condition is established by verifying that it satisfies the Hamilton-Jacobi-Bellman equation. Using an illust... View full abstract»

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  • On designing of sliding-mode control for stochastic jump systems

    Publication Year: 2006, Page(s):97 - 103
    Cited by:  Papers (197)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB) | HTML iconHTML

    In this note, we consider the problems of stochastic stability and sliding-mode control for a class of linear continuous-time systems with stochastic jumps, in which the jumping parameters are modeled as a continuous-time, discrete-state homogeneous Markov process with right continuous trajectories taking values in a finite set. By using Linear matrix inequalities (LMIs) approach, sufficient condi... View full abstract»

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  • Noise analysis of an algorithm for uncertain frequency identification

    Publication Year: 2006, Page(s):103 - 110
    Cited by:  Papers (14)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB) | HTML iconHTML

    This note presents a noise analysis for an algorithm to identify the uncertain frequency of periodic signals or disturbances. This algorithm is based on the time-varying states of an internal model principle controller which can be mapped nonlinearly to the frequency and the magnitude or energy of the periodic signal or disturbance. This note provides an analysis of the 'measurement' of this frequ... View full abstract»

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  • Transition-time optimization for switched-mode dynamical systems

    Publication Year: 2006, Page(s):110 - 115
    Cited by:  Papers (103)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB) | HTML iconHTML

    This note considers the problem of determining optimal switching times at which mode transitions should occur in multimodal, hybrid systems. It derives a simple formula for the gradient of the cost functional with respect to the switching times, and uses it in a gradient-descent algorithm. Much of the analysis is carried out in the setting of optimization problems involving fixed switching-mode se... View full abstract»

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  • On maximizing the second smallest eigenvalue of a state-dependent graph Laplacian

    Publication Year: 2006, Page(s):116 - 120
    Cited by:  Papers (164)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB) | HTML iconHTML

    We consider the set G consisting of graphs of fixed order and weighted edges. The vertex set of graphs in G will correspond to point masses and the weight for an edge between two vertices is a functional of the distance between them. We pose the problem of finding the best vertex positional configuration in the presence of an additional proximity constraint, in the sense that, the second smallest ... View full abstract»

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  • A further result on global stabilization of oscillators with bounded delayed input

    Publication Year: 2006, Page(s):121 - 128
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    This note revisits the problem of globally stabilizing an oscillator with a bounded delayed input. It establishes that an oscillator with input saturation can be globally asymptotically stabilized by a linear state feedback even in the presence of an arbitrarily large delay in the input. This result strengthens a recent result in the literature, which shows that such an oscillator can be globally ... View full abstract»

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  • A direct method for the construction of nonlinear discrete-time observer with linearizable error dynamics

    Publication Year: 2006, Page(s):128 - 135
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB) | HTML iconHTML

    We provide a direct method for the design of nonlinear discrete-time observers by a construction of a change of variables. An explicit expression of the change of variables is given. Some simulations for chaotic systems, such as Lozi system and He´non system, are provided to illustrate the proposed method. View full abstract»

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  • A sufficiently smooth projection operator

    Publication Year: 2006, Page(s):135 - 139
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB) | HTML iconHTML

    In this note, we introduce a new parameter projection operator for adaptation laws. The projection operator replaces the common Lipschitz continuity property with the stronger property of arbitrarily many times continuous differentiability. The proposed projection is useful for backstepping-based, robust adaptive controllers which require multiple differentiations of the adaptation law. View full abstract»

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  • Delay robustness of a class of nonlinear systems and applications to communication networks

    Publication Year: 2006, Page(s):139 - 144
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB) | HTML iconHTML

    In this note, we first study a class of nonlinear interconnected systems and derive sufficient conditions for their global asymptotic stability in the presence of time delays. These conditions give estimates for the maximum admissible delays that the nominal delay-free model can tolerate without losing stability. We then study a subclass with a specific interconnection structure that appears, amon... View full abstract»

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  • MPC as a tool for sustainable development integrated policy assessment

    Publication Year: 2006, Page(s):145 - 149
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB) | HTML iconHTML

    A recent stochastic and multiobjective formulation based on static open-loop optimization has laid the foundations of a quantitative approach to sustainable development policy assessment. Here, the connections between such an approach and model predictive control are explored, and a reformulation that introduces dynamics and addresses closed loop performance and stability is proposed. The approach... View full abstract»

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  • Backstepping design for time-delay nonlinear systems

    Publication Year: 2006, Page(s):149 - 154
    Cited by:  Papers (83)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB) | HTML iconHTML

    The backstepping approach is adapted to the problem of globally uniformly asymptotically stabilizing nonlinear systems in feedback form with a delay arbitrarily large in the input. The strategy of design relies on the construction of a Lyapunov-Krasovskii functional. Continuously differentiable control laws are constructed. View full abstract»

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  • Identifiability of a nonlinear delayed-differential aerospace model

    Publication Year: 2006, Page(s):154 - 158
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB) | HTML iconHTML

    This technical note shows the identifiability of a nonlinear delayed-differential model describing aircraft dynamics. This result is obtained by an original combination: An extension of the results of Grewal and Glover to delay systems and an application of linear delayed-differential model identifiability of Orlov et al. . It requires initial conditions corresponding to an equilibrium state, whic... View full abstract»

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  • Enhanced dynamic programming algorithms for series line optimization

    Publication Year: 2006, Page(s):159 - 164
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB) | HTML iconHTML

    Dynamic programming value iteration is made more efficient on a five-machine unreliable series line by characterizing the transient and "insensitive" states. Holding costs are minimized subject to a service level constraint in a make-to-stock system with backordering. State-space truncations are chosen by checking the recurrent class in previous runs. An approximate model is developed that reduces... View full abstract»

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  • Two classes of efficient digital controller structures with stability consideration

    Publication Year: 2006, Page(s):164 - 170
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB) | HTML iconHTML

    In this note, the efficient controller structure problem is investigated subject to minimizing finite word length (FWL) effects. Two classes of sparse controller structures characterized with a set of free parameters are derived. The stability behavior of each class is analyzed with a newly defined stability related measure. The optimal structure problems are studied in terms of maximizing the sta... View full abstract»

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  • Asymptotic stability and boundedness of delay switching diffusions

    Publication Year: 2006, Page(s):171 - 175
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB) | HTML iconHTML

    Multiple Lyapunov functions are used to establish sufficient conditions for locating the limit sets of switching diffusions. The conditions lead to a number of useful results on stochastic asymptotic stability and boundedness for this class of stochastic hybrid systems. 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