IEEE Transactions on Automatic Control

Issue 6 • June 1995

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Displaying Results 1 - 25 of 28
  • Comments on "Parameterization of linear observers and its application to observer design"

    Publication Year: 1995
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (100 KB)

    The original paper (X. Ding, L. Guo and P.M. Frank, IEEE Trans. Automat. Contr., vol. 39, no. 8, p. 1648-52, 1994) uses a factorization approach to parameterize all stable observers. The authors state that the results are interesting, but draw attention to their own parallel results (Syst. Contr. Lett., vol. 13, p. 161-3, 1989, and Digital and Control and Estimation, Englewood Cliffs, NJ: Prentice... View full abstract»

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  • Robust H output feedback control for nonlinear systems

    Publication Year: 1995, Page(s):1007 - 1017
    Cited by:  Papers (75)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (920 KB)

    In this paper we present a new approach to the solution of the output feedback robust H∞ control problem. We employ the recently developed concept of information state for output feedback dynamic games and obtain necessary and sufficient conditions for the solution to the robust control problem expressed in terms of the information state. The resulting controller is an information... View full abstract»

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  • Moving horizon observers and observer-based control

    Publication Year: 1995, Page(s):995 - 1006
    Cited by:  Papers (193)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (980 KB)

    In this paper two topics are explored. A new approach to the problem of obtaining an estimate of the state of a nonlinear system is proposed. The moving horizon observer produces an estimate of the state of the nonlinear system at time t either by minimizing, or approximately minimizing, a cost function over the preceding interval (horizon) [t-T,t]; as t advances, so does the horizon. Convergence ... View full abstract»

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  • Asymptotic tracking and disturbance rejection in uncertain nonlinear systems

    Publication Year: 1995, Page(s):1118 - 1122
    Cited by:  Papers (89)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (392 KB)

    A state feedback dynamic controller is constructed to achieve asymptotic tracking and disturbance rejection for a class of nonlinear systems regardless of certain plant uncertainties. This controller is based on a kth-order robust control law, and features what is called the internal model principle in the linear literature. The result extends the robust linear servomechanism theory to th... View full abstract»

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  • A multirate model-based predictive controller

    Publication Year: 1995, Page(s):1093 - 1097
    Cited by:  Papers (37)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (396 KB)

    Model-based predictive control (MBPC) is an emerging design tool in process control, thanks to its capability to incorporate several attributes fundamental in practical applications. On the other hand, multirate control systems are able to describe various practical situations where technological constraints require that sensor measurements and control calculations are performed at different times... View full abstract»

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  • Eigenvalue perturbation models for robust control

    Publication Year: 1995, Page(s):1063 - 1066
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (364 KB)

    This paper presents a nonconservative description of the regions containing the eigenvalues of a diagonal matrix, perturbed by the set of all unknown, Euclidean norm bounded matrices. This is extended to real valued block diagonal matrices where each two-by-two block reveals a complex conjugate pair of eigenvalues. A weighting matrix allows one to specify the exact size of the perturbation to each... View full abstract»

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  • An integral-invariance principle for nonlinear systems

    Publication Year: 1995, Page(s):983 - 994
    Cited by:  Papers (49)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (832 KB)

    In this paper we present an integral-invariance principle generalizing LaSalle's invariance principle for nonlinear systems. The principal new ingredients are the use of observation functions and certain integrability conditions, which are particularly well suited for dynamical systems involving control and observations. The integral-invariance principle leads to the development of a series of res... View full abstract»

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  • Persistent disturbance rejection via static-state feedback

    Publication Year: 1995, Page(s):1127 - 1131
    Cited by:  Papers (46)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (504 KB)

    In contrast with ℋ∞ and ℋ2 control theories, the problem of persistent disturbance rejection (l1 optimal control) leads to dynamic controllers, even when the states of the plant are available for feedback. Using viability theory, Shamma showed (1993), in a nonconstructive way, that in the state-feedback case the same performance achieved by any dyna... View full abstract»

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  • Generalized state-space realizations from matrix fraction descriptions

    Publication Year: 1995, Page(s):1134 - 1137
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (312 KB)

    The problem of the realization of a matrix fraction description (MFD) of a nonproper transfer function is considered. An algorithm for the realization is developed, and it is shown that it is a natural generalization of Wolovich's method (1973) for the case of proper systems. The resulting generalized state-space system is shown to be reachable, and the conditions for its minimality, in terms of t... View full abstract»

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  • The asymptotic stability of linear autonomous systems with commensurate time delays

    Publication Year: 1995, Page(s):1114 - 1117
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (344 KB)

    The asymptotic stability of linear systems with commensurate time delays is studied. Algorithms are given to check if a given system is asymptotically stable independent of delay or to determine the largest delay time the system can tolerate to preserve its asymptotic stability. These algorithms are simple to apply since they require only to find the eigenvalues of two specially constructed matric... View full abstract»

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  • On computing the maximal delay intervals for stability of linear delay systems

    Publication Year: 1995, Page(s):1087 - 1093
    Cited by:  Papers (66)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (552 KB)

    This note is concerned with stability properties of linear time-invariant delay systems. The authors consider delay systems of both retarded and neutral types expressed in state-space forms. The author's main goal is to provide a computation-oriented method for computing the maximal delay intervals over which the systems under consideration maintain stability. The author's results show that this c... View full abstract»

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  • The analysis of eigenvalue assignment robustness

    Publication Year: 1995, Page(s):1108 - 1109
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (156 KB)

    The author shows that the results obtained recently in Wang and Lin (1992) are conservative. A new generalization which can overcome such conservatism is presented View full abstract»

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  • Multiobjective H2/H control

    Publication Year: 1995, Page(s):1054 - 1062
    Cited by:  Papers (117)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (768 KB)

    For a linear time-invariant system with several disturbance inputs and controlled outputs, we show how to minimize the nominal H2-norm performance in one channel while keeping bounds on the H2-norm or H∞-norm performance (implying robust stability) in the other channels. This multiobjective H2 /H∞-problem in an infinite dimensional... View full abstract»

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  • Recursive state estimation for uncertain systems with an integral quadratic constraint

    Publication Year: 1995, Page(s):1080 - 1083
    Cited by:  Papers (91)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (364 KB)

    This paper considers a robust state estimation problem for a class of uncertain systems where the noise and uncertainty are modeled deterministically via an integral quadratic constraint. The robust state estimation problem involves constructing the set of all possible states at the current time consistent with given output measurements and the integral quadratic constraint View full abstract»

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  • Dynamics and design of a class of parameterized manufacturing flow controllers

    Publication Year: 1995, Page(s):1018 - 1028
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1016 KB)

    The optimal production control of failure prone flexible manufacturing systems has received considerable attention. Analytically intractable optimality conditions render near optimal controller design the only available option for realistic size systems. This paper deals with a class of suboptimal feedback control policies that are parameterized over a finite set. In-depth analysis of the dynamics... View full abstract»

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  • Indirect robust totally decentralized adaptive control of continuous-time interconnected systems

    Publication Year: 1995, Page(s):1122 - 1126
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (392 KB)

    This paper presents a global stability result on continuous-time indirect totally decentralized adaptive control systems. The algorithms employed in the design of local adaptive controllers are earlier basic conventional adaptive control algorithms subject to parameter projection operation. For the first time, it is shown that without any restriction on signals such as persistence of excitation, g... View full abstract»

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  • Robust production and maintenance planning in stochastic manufacturing systems

    Publication Year: 1995, Page(s):1098 - 1102
    Cited by:  Papers (64)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (436 KB)

    In this paper the authors consider a preventive maintenance and production model of a flexible manufacturing system with machines that are subject to breakdown and repair. The preventive maintenance can be used to reduce the machine failure rates and improve the productivity of the system. The control variables are the rate of maintenance and the rate of production; the objective is to choose a co... View full abstract»

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  • Stability margin optimization via interpolation and conformal mappings

    Publication Year: 1995, Page(s):1066 - 1070
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (436 KB)

    Many interesting problems of robust stabilization can be solved using the complex function theoretic approach of Khargonekar and Tannenbaum (1985). This method is based on the construction of a conformal mapping which reduces the original robust stabilization problem to a Nevanlinna-Pick interpolation problem. The main difficulty of this approach lies in the construction the conformal mapping. The... View full abstract»

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  • A new Farkas lemma for positive semidefinite matrices

    Publication Year: 1995, Page(s):1131 - 1133
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (268 KB)

    We consider a general linear system over the cone of positive semidefinite matrices. To check consistency, one may not invoke the standard Farkas lemma because the cone of positive semidefinite matrices is not polyhedral, and thus an additional closedness assumption is required. In this note, we provide a modified Farkas lemma with no closedness assumption View full abstract»

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  • A discrete-time learning control algorithm for a class of linear time-invariant systems

    Publication Year: 1995, Page(s):1138 - 1142
    Cited by:  Papers (94)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (264 KB)

    A discretized version of the D-type learning control algorithm is presented for a MIMO linear discrete-time system. A necessary and sufficient condition for uniform convergence of the proposed learning algorithm is presented. Then, we prove that the same condition is sufficient for the global robustness of the proposed learning algorithm to state disturbances, measurement noise at the output, and ... View full abstract»

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  • Stability and performance of a simple distributed tracking policy for production control of manufacturing systems

    Publication Year: 1995, Page(s):1109 - 1113
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (432 KB)

    The objective of distributed tracking is to operate a production system as closely as possible to an idealized regime obtained by a continuous-flow relaxation of the actual (discrete) production control problem. The stability and performance of a large class of distributed tracking policies called “nonidling-nonexceeding (NINE)” were investigated in an earlier paper (1994). In this wor... View full abstract»

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  • Continuous-time adaptive control of systems with unknown backlash

    Publication Year: 1995, Page(s):1083 - 1087
    Cited by:  Papers (97)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (420 KB)

    This paper addresses one of the nondifferentiable nonlinearities which appear very often in industrial control applications: backlash. The authors first present a right inverse of backlash and then give one of its possible implementations. Characteristics like backlash are seldom known, so an adaptive version of the authors' backlash inverse is more suitable for applications. The authors develop a... View full abstract»

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  • Robust semiglobal stabilization of minimum-phase input-output linearizable systems via partial state and output feedback

    Publication Year: 1995, Page(s):1029 - 1041
    Cited by:  Papers (66)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1080 KB)

    In this paper we consider the problem of robust semiglobal stabilization and/or semiglobal practical stabilization of minimum-phase input-output linearizable systems. The results of this paper significantly extend the recent work of Teel and Praly (1993) on SISO (single-input/single-output) minimum-phase systems in several directions. Among these directions are the development of MIMO (multi-input... View full abstract»

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  • W-stability and local input-output stability results

    Publication Year: 1995, Page(s):1102 - 1108
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (680 KB)

    A new type of input-output stability is defined, based on the use of a Sobolev space W; W is well suited, like the Lebesgue space L2 , to obtain stability characterizations in the time and frequency domains. Moreover, if compared with L2, W has additional properties which enable one to establish “local” stability results. A local version of the small gain theorem ... View full abstract»

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  • Event-averaged maximum likelihood estimation and mean-field theory in multitarget tracking

    Publication Year: 1995, Page(s):1070 - 1074
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (504 KB)

    This paper presents a novel type of Kalman filter for track maintenance in multitarget tracking using thresholded sensor data at high target/clutter densities and low detection levels. The filter is robust against tracking errors induced by crossing tracks, clutter, and missed detections, and the computational complexity of the filter scales well with problem size. There are two key features that ... View full abstract»

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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