# IEEE Transactions on Automatic Control

## Filter Results

Displaying Results 1 - 25 of 34

Publication Year: 2008, Page(s):C1 - C2
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• ### IEEE Transactions on Automatic Control publication information

Publication Year: 2008, Page(s): C2
| PDF (38 KB)
• ### Scanning the issue

Publication Year: 2008, Page(s):641 - 642
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• ### Exponential Stabilization of a Rayleigh Beam Using Collocated Control

Publication Year: 2008, Page(s):643 - 654
Cited by:  Papers (11)
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We consider a hinged elastic beam described by the Rayleigh beam equation on the interval [0,pi]. We assume the presence of two sensors: one measures the angular velocity of the beam at a point xi epsiv [0,pi] and the other measures the bending (curvature) of the beam at the same point. (If xi = 0 or xi = pi, then the second output is not needed.) The corresponding operator semigroup is unitary on... View full abstract»

• ### Network-Based ${{cal H}}_{!!!infty }$ Output Tracking Control

Publication Year: 2008, Page(s):655 - 667
Cited by:  Papers (242)
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This paper is concerned with the problem of Hinfin output tracking for network-based control systems. The physical plant and the controller are, respectively, in continuous time and discrete time. By using a sampled-data approach, a new model based on the updating instants of the holder is formulated, and a linear matrix inequality (LMI)-based procedure is proposed for designing state-f... View full abstract»

• ### Optimal Control of Underactuated Nonholonomic Mechanical Systems

Publication Year: 2008, Page(s):668 - 682
Cited by:  Papers (51)
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In this paper, we use an affine connection formulation to study an optimal control problem for a class of nonholonomic, underactuated mechanical systems. In particular, we aim to minimize the norm-squared of the control input to move the system from an initial to a terminal state. We consider systems evolving on general manifolds. The class of nonholonomic systems we study in this paper includes, ... View full abstract»

• ### Stabilization and Destabilization of Nonlinear Differential Equations by Noise

Publication Year: 2008, Page(s):683 - 691
Cited by:  Papers (54)
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This paper considers the stabilization and destabilization by a Brownian noise perturbation that preserves the equilibrium of the ordinary differential equation x'(t) = f(x(t)). In an extension of earlier work, we lift the restriction that f obeys a global linear bound, and show that when f is locally Lipschitz, a function g can always be found so that the noise perturbation g(X(t)) dB(t) either s... View full abstract»

• ### Optimal Multi-Agent Coordination Under Tree Formation Constraints

Publication Year: 2008, Page(s):692 - 705
Cited by:  Papers (11)
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This paper presents a framework for studying the centralized optimal multi-agent coordination problem under tree formation constraints. The geodesic equations characterizing the optimal coordinated motions are derived in a suitably chosen coordinate system for general tree formation constraints. The solutions to these equations, however, may fail to be optimal once extended beyond certain points c... View full abstract»

• ### Stabilization of Planar Collective Motion With Limited Communication

Publication Year: 2008, Page(s):706 - 719
Cited by:  Papers (216)
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This paper proposes a design methodology to stabilize relative equilibria in a model of identical, steered particles moving in the plane at unit speed. Relative equilibria either correspond to parallel motion of all particles with fixed relative spacing or to circular motion of all particles around the same circle. Particles exchange relative information according to a communication graph that can... View full abstract»

• ### Dynamic Output Feedback Control of Switched Linear Systems

Publication Year: 2008, Page(s):720 - 733
Cited by:  Papers (139)
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This paper is devoted to stability analysis and control design of switched linear systems in both continuous and discrete-time domains. A particular class of matrix inequalities, the so-called Lyapunov--Metzler inequalities, provides conditions for open-loop stability analysis and closed-loop switching control using state and output feedback. Switched linear systems are analyzed in a general frame... View full abstract»

• ### Smooth Lyapunov Functions for Hybrid Systems Part II: (Pre)Asymptotically Stable Compact Sets

Publication Year: 2008, Page(s):734 - 748
Cited by:  Papers (98)
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It is shown that (pre)asymptotic stability, which generalizes asymptotic stability, of a compact set for a hybrid system satisfying mild regularity assumptions is equivalent to the existence of a smooth Lyapunov function. This result is achieved with the intermediate result that asymptotic stability of a compact set for a hybrid system is generically robust to small, state-dependent perturbations.... View full abstract»

• ### Effective Capacity and QoS for Wireless Scheduling

Publication Year: 2008, Page(s):749 - 761
Cited by:  Papers (46)
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Multiuser scheduling in a wireless context, where channel state information is exploited at the base station, can result in significant throughput gains to users. However, when QoS constraints are imposed (in the form of overflow probabilities), the benefits of multiuser scheduling are not clear. In this paper, we address this question for independent and identically distributed ON-OFF channel mod... View full abstract»

• ### Algebraic Necessary and Sufficient Conditions for the Controllability of Conewise Linear Systems

Publication Year: 2008, Page(s):762 - 774
Cited by:  Papers (33)
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The problem of checking certain controllability properties of even very simple piecewise linear systems is known to be undecidable. This paper focuses on conewise linear systems, i.e., systems for which the state space is partitioned into conical regions and a linear dynamics is active on each of these regions. For this class of systems, we present algebraic necessary and sufficient conditions for... View full abstract»

• ### Flatness-Based Control of a Single Qubit Gate

Publication Year: 2008, Page(s):775 - 779
Cited by:  Papers (11)
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This work considers the open-loop control problem of steering a two-level quantum system from any initial to any final condition. The model of this system evolves on the state space , having two inputs that correspond to the complex amplitude of a resonant laser field. A symmetry preserving flat output is constructed using a fully geometric construction and quaternion computations. Simulation resu... View full abstract»

• ### Global Random Optimization by Simultaneous Perturbation Stochastic Approximation

Publication Year: 2008, Page(s):780 - 783
Cited by:  Papers (32)
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We examine the theoretical and numerical global convergence properties of a certain ldquogradient freerdquo stochastic approximation algorithm called the ldquosimultaneous perturbation stochastic approximation (SPSA)rdquo that has performed well in complex optimization problems. We establish two theorems on the global convergence of SPSA, the first involving the well-known method of injected noise... View full abstract»

• ### Markov Chains, Entropy, and Fundamental Limitations in Nonlinear Stabilization

Publication Year: 2008, Page(s):784 - 791
Cited by:  Papers (13)
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In this paper, we propose a novel methodology for establishing fundamental limitations in nonlinear stabilization. To aid the analysis, we express the stabilization problem as control of Markov chains. Using Markov chains, we derive the limitations as certain maximum probability bounds or as positive conditional entropy of the certain signals in the feedback loop. The former is related to the infe... View full abstract»

• ### A Necessary and Sufficient Condition for Consensus Over Random Networks

Publication Year: 2008, Page(s):791 - 795
Cited by:  Papers (236)
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We consider the consensus problem for stochastic discrete-time linear dynamical systems. The underlying graph of such systems at a given time instance is derived from a random graph process, independent of other time instances. For such a framework, we present a necessary and sufficient condition for almost sure asymptotic consensus using simple ergodicity and probabilistic arguments. This easily ... View full abstract»

• ### On Controllability of Switched Linear Systems

Publication Year: 2008, Page(s):796 - 801
Cited by:  Papers (31)
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This paper investigates the number of switchings and design of switching sequences for controllability of switched linear systems. Two related results are established. One is a new constructive approach to designing switching sequences. The controllable state set of each switching sequence designed via the approach coincides with the controllable subspace of switched linear systems. The other is a... View full abstract»

• ### Memoryless State Feedback Controller Design for Time Delay Systems With Matched Uncertain Nonlinearities

Publication Year: 2008, Page(s):801 - 807
Cited by:  Papers (23)
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The robust control problem for a class of uncertain time-delay systems is investigated. The systems include multiple time delays and uncertain nonlinear functions. To our best knowledge, no controller design method for the systems is reported in the literature except for sliding mode control (SMC). However, the sliding mode controller must use the delayed state of the system, so that the precise t... View full abstract»

• ### Finite-Time Parameter Estimation in Adaptive Control of Nonlinear Systems

Publication Year: 2008, Page(s):807 - 811
Cited by:  Papers (47)
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This note presents a parameter estimation routine that allows exact reconstruction of the unknown parameters in finite time provided a given excitation condition is satisfied. The robustness of the routine to an unknown bounded disturbance or modeling error is also shown. The result is independent of the control and identifier structures employed. The true parameter value is obtained without requi... View full abstract»

• ### Solution to Generalized Sylvester Matrix Equations

Publication Year: 2008, Page(s):811 - 815
Cited by:  Papers (20)
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An explicit solution to the generalized Sylvester matrix equation AX+BY= EXF is established. This solution is expressed in terms of the R-controllability matrix of (E, A, B), a generalized symmetric operator matrix and an observability matrix. Moreover, based on this solution, solutions to some other matrix equations are also derived. The results may provide great convenience for the analysis and ... View full abstract»

• ### ${cal L}_1$ Adaptive Output Feedback Controller for Systems of Unknown Dimension

Publication Year: 2008, Page(s):815 - 821
Cited by:  Papers (49)
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This note presents novel adaptive output feedback control methodology for systems of unknown dimension in the presence of unmodeled dynamics and time-varying uncertainties. The adaptive output feedback controller ensures uniformly bounded transient and asymptotic tracking for the system's both signals, input and output, simultaneously. The performance bounds can be systematically improved by incre... View full abstract»

• ### A Dissipation Inequality for the Minimum Phase Property

Publication Year: 2008, Page(s):821 - 826
Cited by:  Papers (4)
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The minimum phase property is an important notion in systems and control theory. In this paper, a characterization of the minimum phase property of nonlinear control systems in terms of a dissipation inequality is derived. It is shown that this dissipation inequality is equivalent to the classical definition of the minimum phase property in the sense of Byrnes and Isidori, if the control system is... View full abstract»

• ### A Note on the Properties of the Supremal Controllable Sublanguage in Pushdown Systems

Publication Year: 2008, Page(s):826 - 829
Cited by:  Papers (8)
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Consider an event alphabet Sigma. The supervisory control theory of Ramadge and Wonham asks the question: given a plant model G with language LM (G) sube Sigma* and another language K sube LM (G), is there a supervisor phi such that LM (phi/G) = K? Ramadge and Wonham showed that a necessary condition for this to be true is the so-called controllability of K with re... View full abstract»

• ### State Feedback Control of Uncertain Networked Control Systems With Random Time Delays

Publication Year: 2008, Page(s):829 - 834
Cited by:  Papers (125)
| | PDF (406 KB) | HTML

This note investigates the stabilization problem for a class of linear uncertain networked control systems with random communication time delays. Both sensor-to-controller and controller-to-actuator random-network-induced delays are considered. Markov processes are used to model these random-network-induced delays. Based on the Lyapunov-Razumikhin method a mode-dependent state feedback controller ... View full abstract»

## 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