# IEEE Transactions on Automatic Control

## Filter Results

Displaying Results 1 - 25 of 33
• ### Table of contents

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):2221 - 2222
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• ### Active Estimation for Jump Markov Linear Systems

Publication Year: 2008, Page(s):2223 - 2236
Cited by:  Papers (38)
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Jump Markov Linear Systems are convenient models for systems that exhibit both continuous dynamics and discrete mode changes. Estimating the hybrid discrete-continuous state of these systems is important for control and fault detection. Existing solutions for hybrid estimation approximate the belief state by maintaining a subset of the possible discrete mode sequences. This approximation can cause... View full abstract»

• ### Missing Point Estimation in Models Described by Proper Orthogonal Decomposition

Publication Year: 2008, Page(s):2237 - 2251
Cited by:  Papers (116)
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This paper presents a new method of missing point estimation (MPE) to derive efficient reduced-order models for large-scale parameter-varying systems. Such systems often result from the discretization of nonlinear partial differential equations. A projection-based model reduction framework is used where projection spaces are inferred from proper orthogonal decompositions of data-dependent correlat... View full abstract»

• ### Nonblocking Hierarchical Control of Decentralized Discrete Event Systems

Publication Year: 2008, Page(s):2252 - 2265
Cited by:  Papers (59)
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This contribution investigates the hierarchical control of decentralized discrete event systems (DES) that are synchronized by shared events. A hierarchical control architecture providing hierarchical consistency is introduced. Moreover, it allows for composition of decentralized subsystems on the high-level of the hierarchy and hence reduces the computational complexity of supervisory control syn... View full abstract»

• ### Frequency Analysis and Norms of Distributed Spatially Periodic Systems

Publication Year: 2008, Page(s):2266 - 2279
Cited by:  Papers (16)
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We investigate several fundamental aspects of the theory of linear distributed systems with spatially periodic coefficients. We develop a spatial-frequency domain representation analogous to the lifted or frequency response operator representation for linear time periodic systems. Using this representation, we introduce the notion of the H2 norm for this class of systems and provide alg... View full abstract»

• ### Computing the Positive Stabilizing Solution to Algebraic Riccati Equations With an Indefinite Quadratic Term via a Recursive Method

Publication Year: 2008, Page(s):2280 - 2291
Cited by:  Papers (36)
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An iterative algorithm to solve algebraic riccati equations with an indefinite quadratic term is proposed. The global convergence and local quadratic rate of convergence of the algorithm are guaranteed and a proof is given. Numerical examples are also provided to demonstrate the superior effectiveness of the proposed algorithm when compared with methods based on finding stable invariant subspaces ... View full abstract»

• ### Queue Length Stability in Trees Under Slowly Convergent Traffic Using Sequential Maximal Scheduling

Publication Year: 2008, Page(s):2292 - 2306
Cited by:  Papers (5)
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In this paper, we consider queue-length stability in wireless networks under a general class of arrival processes that only requires that the empirical average converges to the actual average polynomially fast. We present a scheduling policy, sequential maximal scheduling, and use novel proof techniques to show that it attains 2/3 of the maximum stability region in tree-graphs under primary interf... View full abstract»

• ### Arbitrary Throughput Versus Complexity Tradeoffs in Wireless Networks Using Graph Partitioning

Publication Year: 2008, Page(s):2307 - 2323
Cited by:  Papers (33)
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Several policies have recently been proposed for attaining the maximum throughput region, or a guaranteed fraction thereof, through dynamic link scheduling. Among these policies, the ones that attain the maximum throughput region require a computation time which is linear in the network size, and the ones that require constant or logarithmic computation time attain only certain fractions of the ma... View full abstract»

• ### Performance Recovery of Feedback-Linearization-Based Designs

Publication Year: 2008, Page(s):2324 - 2334
Cited by:  Papers (125)
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We consider a tracking problem for a partially feedback linearizable nonlinear system with stable zero dynamics. The system is uncertain and only the output is measured. We use an extended high-gain observer of dimension n+1, where n is the relative degree. The observer estimates n derivatives of the tracking error, of which the first (n-1) derivatives are states of the... View full abstract»

• ### Analytical Approximation Methods for the Stabilizing Solution of the Hamilton–Jacobi Equation

Publication Year: 2008, Page(s):2335 - 2350
Cited by:  Papers (54)
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In this paper, two methods for approximating the stabilizing solution of the Hamilton-Jacobi equation are proposed using symplectic geometry and a Hamiltonian perturbation technique as well as stable manifold theory. The first method uses the fact that the Hamiltonian lifted system of an integrable system is also integrable and regards the corresponding Hamiltonian system of the Hamilton-Jacobi eq... View full abstract»

• ### Asynchronous Consensus Protocols Using Nonlinear Paracontractions Theory

Publication Year: 2008, Page(s):2351 - 2355
Cited by:  Papers (44)
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Several consensus protocols have been proposed in the literature and their convergence properties studied via a variety of methods. In all these methods, the communication topologies play a key role in the convergence of consensus processes. In this note, based on asynchronous iteration methods for nonlinear paracontractions, we establish a new result which shows that consensus is reachable under ... View full abstract»

• ### Local and Global Stability of Delayed Congestion Control Systems

Publication Year: 2008, Page(s):2356 - 2360
Cited by:  Papers (2)
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Stability proofs of nonlinear congestion control systems under heterogeneous feedback delays are usually difficult and involve a fair amount of effort. In this paper, we show that there exist a class of congestion control methods that admit very simple proofs of asymptotic stability and allow control equations to be delay-independent. This is in contrast to most previous work, which require... View full abstract»

• ### Controllability and Observability for a Class of Controlled Switching Impulsive Systems

Publication Year: 2008, Page(s):2360 - 2366
Cited by:  Papers (27)
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In this note, we study the controllability and observability problem for a class of controlled switching impulsive systems. By proposing several formula of variation of parameters for this type of time-varying systems and employing the characteristic polynomial theory of matrix, we establish necessary and sufficient conditions for controllability and controlled observability with respect to a give... View full abstract»

• ### Dynamic Output Feedback for Discrete-Time Systems Under Amplitude and Rate Actuator Constraints

Publication Year: 2008, Page(s):2367 - 2372
Cited by:  Papers (18)  |  Patents (1)
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This work proposes a technique for the design of stabilizing dynamic output feedback controllers for discrete-time linear systems with rate and amplitude saturating actuators. The nonlinear effects introduced by the saturations in the closed-loop system are taken into account by using a generalized sector condition, which leads to theoretical conditions for solving the problem directly in the form... View full abstract»

• ### Output Feedback Stabilization for a Discrete-Time System With a Time-Varying Delay

Publication Year: 2008, Page(s):2372 - 2377
Cited by:  Papers (193)
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This study employs the free-weighting matrix approach to investigate the output feedback control of a linear discrete-time system with an interval time-varying delay. First, the delay-dependent stability is analyzed using a new method of estimating the upper bound on the difference of a Lyapunov function without ignoring any terms; and based on the results, a design criterion for a static output f... View full abstract»

• ### Decentralized Backstepping Adaptive Output Tracking of Interconnected Nonlinear Systems

Publication Year: 2008, Page(s):2378 - 2384
Cited by:  Papers (69)
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In this paper, we propose a new totally decentralized adaptive output tracking scheme for a class of nonlinear interconnected systems by using a backstepping approach. In the design, a smooth function is introduced to compensate for the effects of interactions from other subsystems. It is shown that the designed local adaptive controllers can ensure all the signals in the closed loop system are bo... View full abstract»

• ### On the Stability of Spatially Distributed Systems

Publication Year: 2008, Page(s):2385 - 2391
Cited by:  Papers (12)
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In this note, a sufficient condition is derived for the stability of a spatially invariant distributed dynamical system, based on the geometrical structure of the null space of a matrix polynomial. This condition is less conservative than the available computationally feasible criteria. Moreover, using the idea of parameter dependent linear matrix inequalities, a necessary and sufficient condition... View full abstract»

• ### Stability of Systems With Controller Failure and Time-Varying Delay

Publication Year: 2008, Page(s):2391 - 2396
Cited by:  Papers (108)
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This paper studies the stability for a class of systems with time-varying delay subject to controller failure. It explores under what conditions of controller failure the system is still exponentially stable. The concept of controller failure frequency is introduced. First, the delay system with failed controller is modelled as a class of switched delay systems. Next, based on two lemmas developed... View full abstract»

• ### Disturbance Decoupled Observers for Systems With Unknown Inputs

Publication Year: 2008, Page(s):2397 - 2402
Cited by:  Papers (29)
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This note deals with the design of reduced-order disturbance decoupled scalar functional observers for linear systems with unknown inputs. Based on a parametric approach, existence conditions are derived and a design procedure for finding reduced-order scalar functional observers is given. The derived existence conditions are relaxed and the procedure can find first-order disturbance decoupled sca... View full abstract»

• ### Spatial Periodic Adaptive Control for Rotary Machine Systems

Publication Year: 2008, Page(s):2402 - 2408
Cited by:  Papers (10)
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A spatial periodic adaptive control (SPAC) approach is developed to deal with rotary machine systems performing speed tracking tasks. Since the angular displacement is periodic when rotating by 2pi radians, most rotary machine systems present certain cyclic behaviors with a fixed periodicity which is either a fraction or multiple of 2pi . As a consequence, unknown system parameters and disturbance... View full abstract»

• ### Distributed Trace Estimation Under Timing Mismatch and Channel Distortion

Publication Year: 2008, Page(s):2409 - 2414
Cited by:  Papers (1)
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In conservative (or complete) trace-based distributed fault diagnosis it is common to compute, for each component, a preliminary local estimate consisting of all possible traces that can generate the same local symptom (i.e., a collection of sequences of observable events) as the one being received from that component up to a specific time instant. Then communication among local trace estimators c... View full abstract»

• ### Robust Output-Feedback Model Reference Adaptive Control of SISO Plants With Multiple Uncertain, Time-Varying State Delays

Publication Year: 2008, Page(s):2414 - 2419
Cited by:  Papers (15)
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Within the model reference adaptive control framework, a simple adaptive output-feedback control scheme is developed for a class of linear single-input single-output dynamic systems with multiple state delays which is robust with respect to multiple unknown time-varying plant delays and to an external disturbance with unknown bounds. A special form of the Lyapunov-Krasovskii functional with ldquov... View full abstract»

• ### A Parameter-Dependent Approach to Robust $H_{infty }$ Filtering for Time-Delay Systems

Publication Year: 2008, Page(s):2420 - 2425
Cited by:  Papers (70)
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This paper is concerned with the problem of robust H infin filtering for linear continuous-time systems with polytopic parameter uncertainties and time-varying delay in the state. We utilize the polynomially parameter-dependent idea to solve the robust H infin filtering problem, with new linear matrix inequality conditions obtained for the existence of admissibl... 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