# IEEE Transactions on Automatic Control

## Filter Results

Displaying Results 1 - 25 of 31

Publication Year: 2008, Page(s):C1 - C4
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• ### IEEE Transactions on Automatic Control publication information

Publication Year: 2008, Page(s): C2
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• ### Scanning the issue

Publication Year: 2008, Page(s):1093 - 1095
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• ### An Eigenvalue Method for Testing Positive Definiteness of a Multivariate Form

Publication Year: 2008, Page(s):1096 - 1107
Cited by:  Papers (49)
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In this paper, we present an eigenvalue method for testing positive definiteness of a multivariate form. This problem plays an important role in the stability study of nonlinear autonomous systems via Lyapunov's direct method in automatic control. At first we apply the D'Andrea-Dickenstein version of the classical Macaulay formulas of the resultant to compute the symmetric hyperdeterminant of an e... View full abstract»

• ### A Convex Optimization Approach to ARMA Modeling

Publication Year: 2008, Page(s):1108 - 1119
Cited by:  Papers (18)
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We formulate a convex optimization problem for approximating any given spectral density with a rational one having a prescribed number of poles and zeros (n poles and m zeros inside the unit disc and their conjugates). The approximation utilizes the Kullback-Leibler divergence as a distance measure. The stationarity condition for optimality requires that the approximant matches n<... View full abstract»

• ### Global Asymptotic Stabilization for Nonminimum Phase Nonlinear Systems Admitting a Strict Normal Form

Publication Year: 2008, Page(s):1120 - 1132
Cited by:  Papers (19)
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In this paper, we address the problem of global asymptotic stabilization by output feedback for nonminimum phase nonlinear systems which admit a strict normal form. We assume the knowledge of an observer and, depending on its properties, we propose various approaches to design the control law. Each of these approaches needs a different stabilizability assumption on the inverse dynamics. In this wa... View full abstract»

• ### A Framework for Robust Stability of Systems Over Finite Alphabets

Publication Year: 2008, Page(s):1133 - 1146
Cited by:  Papers (40)
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Systems over finite alphabets are discrete-time systems whose input and output signals take their values in finite sets. Three notions of input/output stability (gain stability, incremental stability and external stability) that are particularly applicable to this class of systems are proposed and motivated through examples. New formulations for generalized small gain and incremental small gain th... View full abstract»

• ### On Time-Varying Bit-Allocation Maintaining Stability and Performance: A Convex Parameterization

Publication Year: 2008, Page(s):1147 - 1159
Cited by:  Papers (1)
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In this paper, we analyze and derive conditions for stability of a feedback system in which the plant and feedback controller are separated by a noiseless finite-rate communication channel. We allow for two deterministic classes of reference inputs to excite the system, and derive sufficient conditions for input-output (IO) stability as a function of the encoding strategy and control... View full abstract»

• ### Input–Output Stability of Networked Control Systems With Stochastic Protocols and Channels

Publication Year: 2008, Page(s):1160 - 1175
Cited by:  Papers (67)
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This paper introduces a new definition of stochastic protocols for networked control systems (NCS) and the stochastic analog of the notion of uniform persistency of excitation of protocols first presented in the Proceedings of the 44th IEEE Conference on Decision and Control. Our framework applies directly to common wireless and wireline NCS, including those built on carrier-sense multiple access ... View full abstract»

• ### A New Mechanism for the Free-Rider Problem

Publication Year: 2008, Page(s):1176 - 1183
Cited by:  Papers (3)
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The free-rider problem arises in the provisioning of public resources, when users of the resource have to contribute towards the cost of production. Selfish users may have a tendency to misrepresent preferences-so as to reduce individual contributions-leading to inefficient levels of production of the resource. Groves and Loeb formulated a classic model capturing this problem, and proposed (what l... View full abstract»

• ### Uniform Practical Nonlinear Output Regulation

Publication Year: 2008, Page(s):1184 - 1202
Cited by:  Papers (57)
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In this paper, we present a solution to the problem of asymptotic and practical semiglobal regulation by output feedback for nonlinear systems. A key feature of the proposed approach is that practical regulation is achieved uniformly with respect to the dimension of the internal model and to the gain of the stabilizer near the zero error manifold. This property renders the approach interesting for... View full abstract»

• ### Nonlinear Complementary Filters on the Special Orthogonal Group

Publication Year: 2008, Page(s):1203 - 1218
Cited by:  Papers (510)  |  Patents (7)
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This paper considers the problem of obtaining good attitude estimates from measurements obtained from typical low cost inertial measurement units. The outputs of such systems are characterized by high noise levels and time varying additive biases. We formulate the filtering problem as deterministic observer kinematics posed directly on the special orthogonal group SO (3) driven by reconstructed at... View full abstract»

• ### Robust Stability of Quasi-Polynomials: Frequency-Sweeping Conditions and Vertex Tests

Publication Year: 2008, Page(s):1219 - 1234
Cited by:  Papers (19)
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In this paper, we study the robust stability of uncertain time-delay systems. We consider uncertain quasi-polynomials whose coefficients may vary in a certain prescribed range. Our goal is to derive necessary and sufficient conditions for such uncertain quasi-polynomials to maintain stability independent of delay parameters. Our primary contributions are frequency-sweeping conditions for interval,... View full abstract»

• ### Uniform Asymptotic Stability of Nonlinear Switched Systems With an Application to Mobile Robots

Publication Year: 2008, Page(s):1235 - 1252
Cited by:  Papers (72)
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This paper is concerned with the study of, both local and global, uniform asymptotic stability for general nonlinear and time-varying switched systems. Two concepts of Lyapunov functions are introduced and used to establish uniform Lyapunov stability and uniform global stability. With the help of output functions, an almost bounded output energy condition and an output persistent excitation condit... View full abstract»

• ### Reduced-Order Proper $H_infty$ Controllers for Descriptor Systems: Existence Conditions and LMI-Based Design Algorithms

Publication Year: 2008, Page(s):1253 - 1258
Cited by:  Papers (11)
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In this note, we present a new approach to investigate the existence and design of reduced-order proper Hinfin controllers that provide the same level of performance as that of full-order controllers. By revealing some special features of the LMI-based solvability conditions for the Hinfin control problem for descriptor systems, we obtain a refined bound on the order of H View full abstract»

• ### A Note on Spectral Conditions for Positive Realness of Transfer Function Matrices

Publication Year: 2008, Page(s):1258 - 1261
Cited by:  Papers (23)
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Necessary and sufficient conditions for positive realness of general transfer function matrices are derived. The conditions are expressed in terms of eigenvalues of matrix functions of the state matrices representation of the LTI system. Illustrative numerical examples are provided. View full abstract»

• ### Analysis and Synthesis of Nonlinear Systems With Uncertain Initial Conditions

Publication Year: 2008, Page(s):1262 - 1267
Cited by:  Papers (9)
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This technical note considers the problem of computing extremal values of the trajectories over a given set of initial conditions as well as finding output controllers minimizing these extremal values under time-domain constraints for nonlinear systems. It is shown that upper bounds of the sought extremal values as well as candidates of the sought controllers can be computed by solving a one-param... View full abstract»

• ### Some New Results on Strong $gamma_k$ -$gamma_{cl} H_{infty}$ Stabilization

Publication Year: 2008, Page(s):1268 - 1273
Cited by:  Papers (2)
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The strong gammak-gammacl Hinfin stabilization problem is addressed in this paper. Based on the bounded real lemma, an improved sufficient condition on strong Hinfin stabilization as well as its dual form is derived, which extends the ARE constraint in the former results into an inequality constraint. Two path-following algorithms are proposed to solve t... View full abstract»

• ### Feedforward Control Design for Finite-Time Transition Problems of Nonlinear Systems With Input and Output Constraints

Publication Year: 2008, Page(s):1273 - 1278
Cited by:  Papers (11)
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The article extends a recently presented approach to feedforward control design for nonlinear systems to additionally account for input and output constraints. The inversion-based design treats a finite-time transition problem as a two-point boundary value problem (BVP) in the coordinates of the input-output normal form. To account for constraints on the output and its time derivatives, the input-... View full abstract»

• ### Structural Invariant Subspaces of Singular Hamiltonian Systems and Nonrecursive Solutions of Finite-Horizon Optimal Control Problems

Publication Year: 2008, Page(s):1279 - 1284
Cited by:  Papers (10)
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This note introduces an analytic, nonrecursive approach to the solution of finite-horizon optimal control problems formulated for discrete- time stabilizable systems. The procedure, which adapts to handle both the case where the final state is weighted by a generic quadratic function and the case where the final state is an admissible, sharply assigned one, provides the optimal control sequences, ... View full abstract»

• ### Short-Period Communication and the Role of Zero-Order Holding in Networked Control Systems

Publication Year: 2008, Page(s):1285 - 1290
Cited by:  Papers (41)
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We discuss controller design for a networked control system (NCS) in which a stochastic linear time invariant (LTI) plant communicates with a controller over a shared medium. The medium supports a limited number of simultaneous connections between the controller and the plant's sensors and actuators, possibly subject to transmission delays. We restrict communication to periodic medium access seque... View full abstract»

• ### Safe Diagnosability of Stochastic Discrete Event Systems

Publication Year: 2008, Page(s):1291 - 1296
Cited by:  Papers (20)
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Recently, safe diagnosability of discrete event systems (DESs) was investigated by Paoli and Lafortune, which was viewed as the first necessary step of fault-tolerant supervision. In this paper, we consider the problem of safe diagnosability in the framework of stochastic discrete event systems (SDESs). We define the notion of safe diagnosability for stochastic automata, in which fault detection o... View full abstract»

• ### Mechanical Control Systems and Kinematic Systems

Publication Year: 2008, Page(s):1297 - 1302
Cited by:  Papers (2)
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The aim of this technical note is to analyze the equivalence between the second-order equations describing the dynamics of mechanical systems, and the associated kinematic system when dealing with nonholonomic systems with controls. If the system is fully actuated, both systems are equivalent. However, if it is underactuated an extra condition must be imposed to ensure that a weak equivalence hold... View full abstract»

• ### General Transformation for Block Diagonalization of Multitime-Scale Singularly Perturbed Linear Systems

Publication Year: 2008, Page(s):1303 - 1305
Cited by:  Papers (8)
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In this technical note, a general transformation for block-diagonalization (decoupling) of multitime-scale singularly perturbed linear systems composed of N subsystems is presented. The resulting decoupling corresponds to subsystem time-scales and produces N completely independent subsystems operating in different time scales. View full abstract»

• ### Computational Performance Bounds for Markov Chains With Applications

Publication Year: 2008, Page(s):1306 - 1311
Cited by:  Papers (8)
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For Markov chains exhibiting translation invariance of their transition probabilities on polyhedra covering the state space, we develop computational performance bounds for key measures of system performance. Duality allows us to obtain linear programming performance bounds. The Markov chains considered can be used to model multiclass queueing networks operating under affine index policies, a clas... 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