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IEEE Transactions on Automatic Control

Issue 5 • Date May 1983

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Displaying Results 1 - 23 of 23
  • [Front cover and table of contents]

    Publication Year: 1983, Page(s): 0
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  • Editorial: With best regards

    Publication Year: 1983, Page(s): 545
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    Freely Available from IEEE
  • Announcement: The end and beginning of an editorship period

    Publication Year: 1983, Page(s): 546
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  • Comments on "Viability of methods for generating stable reduced order models"

    Publication Year: 1983, Page(s):630 - 631
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    In the above paper the author uses an example to compare various reduction methods, which are stated to lead to erroneous approximations, with the standard Pade approximation. In this comment the example chosen is shown to be trivial, and even then the Pade approximation is shown to have limitations. View full abstract»

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  • Comments on "Realization and reduction of Markovian models from nonstationary data"

    Publication Year: 1983, Page(s):631 - 633
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (254 KB)

    In the above paper, Baram determines a basis in which to construct realizations from measurement data and for model reduction of these realizations. The basis selected by Baram is similar to the "cost-decoupled" basis introduced earlier [1], [2], with one exception. Both have diagonal state covariances, but the second matrix diagonalized is different. Of course, this makes the two algorithms diffe... View full abstract»

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  • Author's reply

    Publication Year: 1983, Page(s): 633
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (75 KB)

    First Page of the Article
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  • [Back cover]

    Publication Year: 1983, Page(s): 0
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    Freely Available from IEEE
  • On the sensitivity of a time-optimal positional control

    Publication Year: 1983, Page(s):618 - 621
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    A second-order differential equation with a discontinuous and nonlinear right-hand side has been taken as the model for positional mechanisms. This model covers a large class of motion resistances, particularly all types of friction. Sensitivity of time-optimal positional control to motion resistances and switching function variations has been investigated. This correspondence also contains some s... View full abstract»

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  • Descriptor systems: Expanded descriptor equation and Markov parameters

    Publication Year: 1983, Page(s):623 - 627
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    Generalized concepts of solvability and conditionability are presented for descriptor systems, and tests are given for these generalized properties. An expression is derived for descriptor system Markov parameters. The notion of "expanded descriptor equation" is presented. View full abstract»

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  • A quantitative condition for the well-posedness of interconnected dynamical systems

    Publication Year: 1983, Page(s):569 - 577
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    A sufficient condition for the well-posedness of interconnected dynamical systems is reported. The condition is stated in terms of the uniform instantaneous gains of subsystems and interconnections, and includes Vidyasagar's condition [8] as a special case. The result is useful for testing the validity of the dynamical model of a large-scale system which is obtained by combining the models of subs... View full abstract»

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  • Descriptor variable systems and optimal state regulation

    Publication Year: 1983, Page(s):601 - 611
    Cited by:  Papers (80)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    Linear systems of the form E\dot{x} = Ax + Bu with E singular are treated. It is desired to find a control which drives the system asymptotically to the origin, minimizing a quadratic cost functional. No restrictions are placed on initial conditions. The cost associated with the impulsive behavior of the system is examined... View full abstract»

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  • The disturbance decoupling problem for nonlinear control systems

    Publication Year: 1983, Page(s):621 - 623
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Necessary and sufficient conditions are derived for the solution of the disturbance decoupling problem for general nonlinear control systems. Some conceptual algorithms needed are discussed. View full abstract»

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  • Author's reply

    Publication Year: 1983, Page(s): 631
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (144 KB)

    The comments on my paper do not address the issues raised in the paper, but rather make a comparison of the Pade approximation method to the pole/zero cancellation method of reduction. View full abstract»

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  • Structure of stationary finite observation records of discrete-time stochastic linear systems

    Publication Year: 1983, Page(s):577 - 584
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    We discuss the structural features of finite observation records from discrete-time stationary Gaussian stochastic processes with rational power spectra. The processes may be viewed as arising from discrete-time linear systems excited by white noise or as autoregressive-moving average processes. The latter parametrization is chosen for convenience, and the existence of nontrivial sufficient statis... View full abstract»

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  • Asymptotic unbounded root loci--Formulas and computation

    Publication Year: 1983, Page(s):557 - 568
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1000 KB)

    We study the asymptotic behavior of the dosed loop eigenvalues (root loci) of a strictly proper linear time-invariant control system as loop gain goes to \infty . The formulas are stated in terms of the eigenvalues of nested restricted linear maps of the form A(mod S_{2})|_{S_{1}} where S1and S2are s... View full abstract»

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  • Feedback, minimax sensitivity, and optimal robustness

    Publication Year: 1983, Page(s):585 - 601
    Cited by:  Papers (200)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1656 KB)

    In this paper, we look for feedbacks that minimize the sensitivity function of a linear single-variable feedback system represented by its frequency responses. Sensitivity to disturbances and robustness under plant perturbations are measured in a weighted H^{\infty } norm. In an earlier paper, Zames proposed an approach to feedback design involving the measur... View full abstract»

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  • Reduced models and control of distillation columns with sharp temperature profiles

    Publication Year: 1983, Page(s):628 - 630
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Distillation columns with sharp temperature profiles exhibit a characteristic dynamic behavior which is used in this correspondence to deduce a considerably simplified low-order dynamic model. Based on this model, linear state-space methods are employed in the design of the control of an extractive distillation column with a vapor side stream. View full abstract»

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  • Extended MKY lemma--What shall it be?

    Publication Year: 1983, Page(s):627 - 628
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB)

    The difficiencies of a previously reported extension of the MKY lemma are pointed out. View full abstract»

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  • On stabilization by state feedback for neutral differential difference equations

    Publication Year: 1983, Page(s):615 - 618
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    In this paper we consider a class of feedback operators for a linear differential difference equation of the neutral type. We show that if a system has unstable neutral root chains, any stabilizing feedback operator in this class must contain a derivative of the delayed state component. Under the assumption of exact controllability, we construct a stabilizing feedback operator. View full abstract»

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  • Intelligent robotic control

    Publication Year: 1983, Page(s):547 - 557
    Cited by:  Papers (108)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (928 KB)

    A theoretical approach is developed to deal with man-machine interactive systems requiring advanced decision making in unpredictable environments. The hierarchical method consists of a three-layer control of "increasing intelligence and decreasing precision." The lowest level consists of several controllers designed for effective control with existing hardware using an approximation theory of opti... View full abstract»

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  • Convergence of partitioned adaptive filters for systems with unknown biases

    Publication Year: 1983, Page(s):614 - 615
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    A convergence theorem on performance bounds for partitioned adaptive estimation is extended to include biases among the unknown parameters. The importance and implications of this rarely considered case are briefly discussed. View full abstract»

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  • Parameter estimation: Principles and problems

    Publication Year: 1983, Page(s):634 - 635
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    First Page of the Article
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  • On the location of filtering in a linear terminal control system

    Publication Year: 1983, Page(s):611 - 614
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    This paper deals with a linear system with terminal control which has application to the homing guidance loop. The characteristic considered here is the effect of filtering on the error position measurement when the filter is located before the time varying gain. It is shown that such filtering profoundly modifies the behavior of the loop with possible desta-bilization of the adjoint system. 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

Full Aims & Scope

Meet Our Editors

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