# IEEE Transactions on Automatic Control

## Filter Results

Displaying Results 1 - 25 of 34

Publication Year: 2010, Page(s):C1 - C4
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• ### IEEE Control Systems Society

Publication Year: 2010, Page(s): C2
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• ### Scanning the issue

Publication Year: 2010, Page(s):1985 - 1986
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• ### Distributed Randomized Algorithms for the PageRank Computation

Publication Year: 2010, Page(s):1987 - 2002
Cited by:  Papers (56)
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In the search engine of Google, the PageRank algorithm plays a crucial role in ranking the search results. The algorithm quantifies the importance of each web page based on the link structure of the web. We first provide an overview of the original problem setup. Then, we propose several distributed randomized schemes for the computation of the PageRank, where the pages can locally update their va... View full abstract»

• ### Real-Time Control of Dense-Time Systems Using Digital-Clocks

Publication Year: 2010, Page(s):2003 - 2013
Cited by:  Papers (1)
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We study the supervisory control of dense-time discrete event systems (DESs) in which the supervisors employ finite-precision digital-clocks to observe the event occurrence times, thereby relaxing the assumption of the prior works that time can be measured precisely. In our paper, the passing of time is measured using the number of ticks generated by a digital-clock and we allow the plant events a... View full abstract»

• ### Model Reference Adaptive Control Using Simultaneous Probing, Estimation, and Control

Publication Year: 2010, Page(s):2014 - 2029
Cited by:  Papers (24)
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Recently the use of a linear periodic controller has been proposed to solve the model reference adaptive control problem. The resulting controller can handle rapid changes in plant parameters, and it can provide nice transient behavior with arbitrarily good steady-state tracking using a control signal which remains modest in size. However, it also has some undesireable features: i) the proposed sa... View full abstract»

• ### To Sample or not to Sample: Self-Triggered Control for Nonlinear Systems

Publication Year: 2010, Page(s):2030 - 2042
Cited by:  Papers (327)
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Feedback control laws have been traditionally implemented in a periodic fashion on digital hardware. Although periodicity simplifies the analysis of the mismatch between the control design and its digital implementation, it also leads to conservative usage of resources such as CPU utilization in the case of embedded control. We present a novel technique that abandons the periodicity assumption by ... View full abstract»

• ### Consensus Conditions of Multi-Agent Systems With Time-Varying Topologies and Stochastic Communication Noises

Publication Year: 2010, Page(s):2043 - 2057
Cited by:  Papers (226)
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This paper investigates the average-consensus problem of first-order discrete-time multi-agent networks in uncertain communication environments. Each agent can only use its own and neighbors' information to design its control input. To attenuate the communication noises, a distributed stochastic approximation type protocol is used. By using probability limit theory and algebraic graph theory, cons... View full abstract»

• ### Kalman Filter Implementation With Improved Numerical Properties

Publication Year: 2010, Page(s):2058 - 2068
Cited by:  Papers (4)
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This paper presents a new form of Kalman filter-the sigmaRho filter-useful for operational implementation in applications where stability and throughput requirements stress traditional implementations. The new mechanization has the benefits of square root filters in both promoting stability and reducing dynamic range of propagated terms. State standard deviations and correlation coefficients are p... View full abstract»

• ### Diffusion Strategies for Distributed Kalman Filtering and Smoothing

Publication Year: 2010, Page(s):2069 - 2084
Cited by:  Papers (232)
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We study the problem of distributed Kalman filtering and smoothing, where a set of nodes is required to estimate the state of a linear dynamic system from in a collaborative manner. Our focus is on diffusion strategies, where nodes communicate with their direct neighbors only, and the information is diffused across the network through a sequence of Kalman iterations and data-aggregation. We study ... View full abstract»

• ### Distributed Design Methods for Linear Quadratic Control and Their Limitations

Publication Year: 2010, Page(s):2085 - 2093
Cited by:  Papers (20)
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We introduce the notion of distributed design methods, which construct controllers by accessing a plant's description in a constrained manner. We propose performance and information metrics for these design methods, and investigate the connection between closed-loop performance of the best controller they can produce and the amount of exchanged information about the plant. For a class of linear di... View full abstract»

• ### Newton-Like Extremum-Seeking for the Control of Thermoacoustic Instability

Publication Year: 2010, Page(s):2094 - 2105
Cited by:  Papers (69)
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In practice, the convergence rate and stability of perturbation based extremum-seeking schemes can be very sensitive to the curvature of the plant map. An example of this can be seen in the use of extremum-seeking to reduce the amplitude of thermoacoustic oscillations in premixed, gas-turbine combustors. This sensitivity to the plant map curvature arises from the use of a gradient descent adaptati... View full abstract»

• ### Delay-Adaptive Predictor Feedback for Systems With Unknown Long Actuator Delay 

Publication Year: 2010, Page(s):2106 - 2112
Cited by:  Papers (68)
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Stabilization of an unstable system with an unknown actuator delay of substantial length is an important problem that has never been attempted. We present a Lyapunov-based adaptive control design, prove its stability and regulation properties for the plant and actuator states, and present a simulation example inspired by the problem of control of pitch and flight path rates in the unstable X-29 ai... View full abstract»

• ### An Optimization Approach to State-Delay Identification 

Publication Year: 2010, Page(s):2113 - 2119
Cited by:  Papers (31)
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We consider a nonlinear delay-differential system with unknown state-delays. Our goal is to identify these state-delays using experimental data. To this end, we formulate a dynamic optimization problem in which the state-delays are decision variables and the cost function measures the discrepancy between predicted and observed system output. We then show that the gradient of this problem's cost fu... View full abstract»

• ### $H_{infty}$ Controller Design Using an Alternative to Youla Parameterization 

Publication Year: 2010, Page(s):2119 - 2123
Cited by:  Papers (20)
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All H∞ controllers of a SISO LTI system are parameterized thanks to the relation between Bounded Real Lemma and Positive Real Lemma. This new parameterization shares the same features with Youla parameterization, namely on the convexity of H∞ norm constraints for the closed-loop transfer functions. However, it can deal with low-order controllers an... View full abstract»

• ### Adaptive Controller Design and Disturbance Attenuation for Sequentially Interconnected SISO Linear Systems Under Noisy Output Measurements 

Publication Year: 2010, Page(s):2123 - 2129
Cited by:  Papers (4)
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This note presents a robust adaptive controller design for a special class of linear system, consisting of two sequentially interconnected SISO linear subsystems, S1 and S2, under noisy output measurements and with additional feedback. We formulate the robust adaptive control problem as a nonlinear H∞-optimal control problem under imperfect state measurement... View full abstract»

• ### Observer-Based Control of Discrete-Time LPV Systems With Uncertain Parameters 

Publication Year: 2010, Page(s):2130 - 2135
Cited by:  Papers (71)
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In this note, linear matrix inequality-based design conditions are presented for observer-based controllers that stabilize discrete-time linear parameter-varying systems in the situation where the parameters are not exactly known, but are only available with a finite accuracy. The presented framework allows to make tradeoffs between the admissible level of parameter uncertainty on the one hand and... View full abstract»

• ### Adaptive Tracking for Stochastic Nonlinear Systems With Markovian Switching 

Publication Year: 2010, Page(s):2135 - 2141
Cited by:  Papers (102)
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The problem of the adaptive tracking for a class of stochastic nonlinear systems with stationary Markovian switching is considered in this note. An Ito formula is proposed for stochastic integral equations with an integral about martingale measure. An adaptive backstepping controller is designed such that the closed-loop system has a unique solution that is globally bounded in probability and L... View full abstract»

• ### A Bio-Inspired Scheme for Coordinated Online Search 

Publication Year: 2010, Page(s):2142 - 2147
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We present a novel scheme for coordinated search by autonomous agents that is inspired by collective forms of intelligence present in group predators. In the scheme proposed, a group of agents is tasked to find several targets over a search area. The sensing technology is imperfect so there are non-negligible probabilities for false positives and false negatives. Agents maintain two data `trails' ... View full abstract»

• ### Finite Horizon Optimal Control of Singularly Perturbed Systems: A Differential Lyapunov Equation Approach 

Publication Year: 2010, Page(s):2148 - 2152
Cited by:  Papers (7)
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In this note, we study the finite time (horizon) optimal control problem for singularly perturbed systems. The solution is obtained in terms of the corresponding solution of the algebraic Riccati equation and the decomposition of the singularly perturbed differential Lyapunov equation into reduced-order differential Lyapunov/Sylvester equations. An illustrative numerical example is provided to sho... View full abstract»

• ### Stability of Discrete-Time Systems Joined With a Saturation Operator on the State-Space 

Publication Year: 2010, Page(s):2153 - 2155
Cited by:  Papers (20)
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This note studies the stability of discrete-time dynamical systems acted upon by a saturation process in the state-space. A finite procedure is proposed to focus on the asymptotic behavior of systems, which produces linear constraints imposed on Lyapunov-Stein matrix inequalities to be solved. A little linear algebra broadens the scope of stability test from that of the earlier Liu-Michel's criter... View full abstract»

• ### Stabilization of a Class of Sandwich Systems Via State Feedback 

Publication Year: 2010, Page(s):2156 - 2160
Cited by:  Papers (2)
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We consider the problem of state-feedback stabilization for a class of sandwich systems, consisting of two linear systems connected in cascade via a saturation. In particular, we present design methodologies for constructing semiglobally and globally stabilizing controllers for such systems when the input is itself subject to saturation. The design is carried out under a set of assumptions that ar... View full abstract»

• ### Stabilization of Multiple-Input Multiple-Output Linear Systems With Saturated Outputs 

Publication Year: 2010, Page(s):2160 - 2164
Cited by:  Papers (7)
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We consider linear time-invariant multiple-input multiple-output systems that are controllable and observable, where each output component is saturated. We demonstrate by constructive design that such systems can be globally asymptotically stabilized by output feedback without further restrictions. This result is an extension of a previous result by Kreisselmeier for single-input single-output sys... View full abstract»

• ### Box Gaussian Mixture Filter 

Publication Year: 2010, Page(s):2165 - 2169
Cited by:  Papers (5)
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This note presents the box Gaussian mixture filter (BGMF), which is an efficient filter for the systems with mainly linear measurements but enables utilizing highly nonlinear measurements. BGMF contains a new way to approximate the prior distributions with a Gaussian mixture, whose components have small covariances. In this note we present results on the weak convergence of BGMF. In simulations, w... View full abstract»

• ### Numerical Algorithms for Optimal Controls for Nonlinear Stochastic Systems With Delays 

Publication Year: 2010, Page(s):2170 - 2176
Cited by:  Papers (11)
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The Markov chain approximation numerical methods were extended to general controlled nonlinear (and reflected) diffusions with delays in a recent monograph, where many types of ideal algorithms were developed and convergence proved. Any combination of the path, control, and reflection terms can be delayed. If the control and/or reflection terms are delayed, then the memory requirements with naive ... 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

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## Meet Our Editors

Editor-in-Chief
P. J. Antsaklis
Dept. Electrical Engineering
University of Notre Dame