# IEEE Transactions on Automatic Control

## Filter Results

Displaying Results 1 - 25 of 30

Publication Year: 2008, Page(s):C1 - C2
| PDF (38 KB)
• ### IEEE Transactions on Automatic Control publication information

Publication Year: 2008, Page(s): C2
| PDF (36 KB)
• ### Scanning the issue

Publication Year: 2008, Page(s):445 - 446
| PDF (37 KB) | HTML
• ### Modular Control of Discrete-Event Systems With Coalgebra

Publication Year: 2008, Page(s):447 - 460
Cited by:  Papers (10)
| | PDF (287 KB) | HTML

Modular supervisory control of discrete-event systems, where the overall system is a synchronous (parallel) product of subsystems, is considered. The main results of this paper are formulations of sufficient conditions for the compatibility between the synchronous product and various operations stemming from supervisory control as supervised product and supremal controllable sublanguages. These re... View full abstract»

• ### Adaptive Control and Robustness in the Gap Metric

Publication Year: 2008, Page(s):461 - 478
Cited by:  Papers (27)
| | PDF (349 KB) | HTML

We consider the construction of adaptive controllers for minimum phase linear systems that achieve nonzero robustness margins in the sense of the gap metric. The gap perturbation margin may be more constrained for larger disturbances and for larger parametric uncertainties. Working in both and settings, and within the framework of the nonlinear gap metric, universal adaptive controllers are first ... View full abstract»

• ### Optimal Strategies for Multiclass Job Scheduling on a Single Machine With Controllable Processing Times

Publication Year: 2008, Page(s):479 - 495
Cited by:  Papers (9)
| | PDF (434 KB) | HTML

A particular scheduling problem over a single machine is considered. Jobs belong to different classes, and two jobs belonging to the same class are considered as completely equivalent. A sequence of due dates is specified for each class of jobs, and the serviced jobs, for each class, are assigned to the due dates according to the EDD rule. The service time of any job of a given class has to be sel... View full abstract»

• ### The $n$th-Order Bias Optimality for Multichain Markov Decision Processes

Publication Year: 2008, Page(s):496 - 508
Cited by:  Papers (15)
| | PDF (232 KB) | HTML

In this paper, we propose a new approach to the theory of finite multichain Markov decision processes (MDPs) with different performance optimization criteria. We first propose the concept of nth-order bias; then, using the average reward and bias difference formulas derived in this paper, we develop an optimization theory for finite MDPs that covers a complete spectrum from average optimality, bia... View full abstract»

• ### Numerical Solutions for Stochastic Differential Games With Regime Switching

Publication Year: 2008, Page(s):509 - 521
Cited by:  Papers (11)
| | PDF (327 KB) | HTML

This paper is concerned with numerical methods for stochastic differential games of regime-switching diffusions. Numerical methods using Markov chain approximation techniques are developed. A new proof of the existence of a saddle point for the stochastic differential game is provided. This new proof enables us to treat certain systems with nonseparable (in controls) structure. Convergence of the ... View full abstract»

• ### Synthesis of Inference-Based Decentralized Control for Discrete Event Systems

Publication Year: 2008, Page(s):522 - 534
Cited by:  Papers (6)
| | PDF (275 KB) | HTML

In our past work, we presented a framework for the decentralized control of discrete event systems involving inferencing over ambiguities, about the system state, of various local decision makers. Using the knowledge of the self-ambiguity and those of the others, each local control decision is tagged with a certain ambiguity level (level zero being the minimum and representing no ambiguity). A glo... View full abstract»

• ### Decentralized Diagnosis of Stochastic Discrete Event Systems

Publication Year: 2008, Page(s):535 - 546
Cited by:  Papers (32)
| | PDF (271 KB) | HTML

We investigate the decentralized diagnosis of stochastic discrete event systems (SDESs) by using multiple local stochastic diagnosers, each possessing its own sensors to deal with different information. We formalize the notions of decentralized diagnosis for SDESs by defining the concept of codiagnosability for stochastic automata, in which any communication among the local stochastic diagnosers o... View full abstract»

• ### Decentralized Supervisory Control of Discrete-Event Systems Over Communication Networks

Publication Year: 2008, Page(s):547 - 559
Cited by:  Papers (19)
| | PDF (369 KB) | HTML

In this paper, we investigate the problem of designing embedded decentralized discrete-event controllers over communication networks. It is assumed that there is a path between every pair of processes in the network. The control objective is specified by a prefix-closed language that is controllable and observable, but not coobservable. The paper is focused on communication among processes necessa... View full abstract»

• ### On Evaluating SFM-Based Infinitesimal Perturbation Analysis Estimates From Discrete Event System Data

Publication Year: 2008, Page(s):560 - 565
Cited by:  Papers (3)
| | PDF (491 KB) | HTML

This paper investigates the evaluation of infinitesimal perturbation analysis (IPA) estimates that have been derived based on a stochastic fluid model (SFM) using data observed from the sample path of a discrete event system (DES). First, we show that a straightforward implementation of the SFM-based IPA estimates may yield biased estimates when the data are obtained from the actual DES. Then, in ... View full abstract»

• ### Stability Region Analysis Using Polynomial and Composite Polynomial Lyapunov Functions and Sum-of-Squares Programming

Publication Year: 2008, Page(s):565 - 571
Cited by:  Papers (106)
| | PDF (662 KB) | HTML

We propose using (bilinear) sum-of-squares programming for obtaining inner bounds of RoAs for dynamical systems with polynomial vector fields. We search for polynomial as well as composite Lyapunov functions comprised of pointwise maximums of polynomial functions. Results for several examples from the literature are presented using the proposed methods and the PENBMI solver. View full abstract»

• ### Realizations of Nonlinear Control Systems on Time Scales

Publication Year: 2008, Page(s):571 - 575
Cited by:  Papers (26)
| | PDF (141 KB) | HTML

Nonlinear partially defined systems on an arbitrary unbounded time scale are studied. They include continuous-time and discrete-time systems. The main problem is to find necessary and sufficient conditions for an abstract input/output map to have a realization as a nonlinear system of a specific class on the time scale. The obtained results extend criteria of realizability of continuous-time polyn... View full abstract»

• ### A Discrete-Time Periodic Adaptive Control Approach for Time-Varying Parameters With Known Periodicity

Publication Year: 2008, Page(s):575 - 581
Cited by:  Papers (23)
| | PDF (341 KB) | HTML

A periodic adaptive control approach is proposed for a class of nonlinear discrete-time systems with time-varying parametric uncertainties that are periodic, and the only prior knowledge is the periodicity. The new adaptive controller updates the parameters and the control signal periodically in a point-wise manner over one entire period, and in the sequel, achieves the asymptotic tracking converg... View full abstract»

• ### Monotonic Convergence of Iterative Learning Control for Uncertain Systems Using a Time-Varying Filter

Publication Year: 2008, Page(s):582 - 585
Cited by:  Papers (42)
| | PDF (130 KB) | HTML

Iterative learning control (ILC) is a learning technique used to improve the performance of systems that execute the same task multiple times. Learning transient behavior has emerged as an important topic in the design and analysis of ILC systems. In practice, the learning control is often low-pass filtered with a ldquoQ-filterrdquo to prevent transient growth, at the cost of performance. In this ... View full abstract»

• ### Design and Analysis of a Novel ${cal L}_1$ Adaptive Control Architecture With Guaranteed Transient Performance

Publication Year: 2008, Page(s):586 - 591
Cited by:  Papers (168)  |  Patents (1)
| | PDF (382 KB) | HTML

This paper presents a novel adaptive control architecture that adapts fast and ensures uniformly bounded transient response for system's both signals, input and output, simultaneously. This new architecture has a low-pass filter in the feedback loop and relies on the small-gain theorem for the proof of asymptotic stability. The tools from this paper can be used to develop a theoretically justified... View full abstract»

• ### Robust Feedback Control for a Class of Uncertain MIMO Nonlinear Systems

Publication Year: 2008, Page(s):591 - 596
Cited by:  Papers (33)
| | PDF (803 KB) | HTML

In this paper, a continuous feedback tracking controller is developed for a class of high-order multi-input multi-output (MIMO) nonlinear systems with an input gain matrix that has nonzero leading principal minors but can be nonsymmetric. Under the mild assumption that the signs of the leading minors of the control input gain matrix are known, the controller yields locally uniformly ultimately bou... View full abstract»

• ### Converging Coevolutionary Algorithm for Two-Person Zero-Sum Discounted Markov Games With Perfect Information

Publication Year: 2008, Page(s):596 - 601
Cited by:  Papers (3)
| | PDF (199 KB) | HTML

This note proposes a novel population-based coevolutionary algorithm, called the ldquolocal-equilibrium-based coevolutionary algorithmrdquo (LECA), for solving infinite-horizon-discounted two-person zero-sum Markov games with perfect information. LECA ldquorandomizesrdquo a simplified variant of Raghavan and Syed's algorithm, which adapted Howard's policy improvement algorithm for solving Markov d... View full abstract»

• ### A Sharp Estimate for the Probability of Stability for Polynomials With Multilinear Uncertainty Structure

Publication Year: 2008, Page(s):601 - 606
Cited by:  Papers (3)
| | PDF (206 KB) | HTML

This paper addresses the probability of stability for uncertain polynomials that have multilinear functions of real parameters as coefficients. We obtain an estimate for the probability of stability with respect to a class of admissible distributions. This estimate is ldquosharprdquo in the following sense: one obtains a probability of stability of unity when the bounds on the hypercube uncertaint... View full abstract»

• ### Nonquadratic Stabilization Conditions for a Class of Uncertain Nonlinear Discrete Time TS Fuzzy Models: A New Approach

Publication Year: 2008, Page(s):606 - 611
Cited by:  Papers (223)
| | PDF (192 KB) | HTML

The discrete-time uncertain nonlinear models are considered in a Takagi-Sugeno form and their stabilization is studied through a non- quadratic Lyapunov function. The classical conditions consider a one- sample variation, here, the main results are obtained considering k samples variation, i.e., Deltak V(x(t)) = V(x(t + k)) - V(x(t)). The results are shown to always include the classica... View full abstract»

• ### Density Functions for Navigation-Function-Based Systems

Publication Year: 2008, Page(s):612 - 617
Cited by:  Papers (13)
| | PDF (189 KB) | HTML

In this paper, we present a scheme for constructing density functions for systems that are almost globally asymptotically stable (i.e., systems for which all trajectories converge to an equilibrium except for a set of measure zero) using navigation functions (NFs). Although recently-proven converse theorems guarantee the existence of density functions for such systems, such results are only existe... View full abstract»

• ### Output Feedback Control of Bilinear Systems via a Bilinear LTR Observer

Publication Year: 2008, Page(s):617 - 621
Cited by:  Papers (14)
| | PDF (131 KB) | HTML

In the literature, most observer-based output feedback controls for bilinear systems are only applicable to open-loop (neutrally) stable systems. This paper proposes a new observer-based output feedback control that can be applied to open-loop unstable systems. The key component of the new control is an exponentially stable bilinear loop transfer recovery (LTR) observer that derives from the linea... View full abstract»

• ### On Linear-Quadratic Stackelberg Games With Time Preference Rates

Publication Year: 2008, Page(s):621 - 625
Cited by:  Papers (9)
| | PDF (138 KB) | HTML

This note deals with linear-quadratic Stackelberg differential games including time preference rates with an open-loop information structure. The properties of the characteristic matrix associated with the necessary conditions for a Stackelberg strategy are pointed out. It is shown that such a matrix exhibits a special symmetry property of its eigenvalues. Sufficient conditions to guarantee a pred... View full abstract»

• ### A Note on Marginal Stability of Switched Systems

Publication Year: 2008, Page(s):625 - 631
Cited by:  Papers (19)
| | PDF (265 KB) | HTML

In this note, we present criteria for marginal stability and marginal instability of switched systems. For switched nonlinear systems, we prove that uniform stability is equivalent to the existence of a common weak Lyapunov function (CWLF) that is generally not continuous. For switched linear systems, we present a unified treatment for marginal stability and marginal instability for both continuou... 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