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IEEE Transactions on Automatic Control

Issue 1 • January 1983

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Displaying Results 1 - 25 of 29
  • [Front cover and table of contents]

    Publication Year: 1983, Page(s): 0
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    Freely Available from IEEE
  • Authors' reply to "Comments on model reduction by minimizing the equation error"

    Publication Year: 1983, Page(s):124 - 125
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (175 KB)

    First Page of the Article
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  • Comments on "Design of optimal dead-beat controllers"

    Publication Year: 1983, Page(s):125 - 127
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (194 KB)

    It is shown that the system considered in the numerical example of the above paper belongs to a class of systems (with n states and r inputs) for which the set of all minimum-time dead-beat (MTDB) controllers is parameterized by an arbitrary matrix of order [(\lambda + 1)r - n]x[n - \lam...
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  • [Back cover]

    Publication Year: 1983, Page(s): 0
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    Freely Available from IEEE
  • A Stackelberg solution of dynamic games

    Publication Year: 1983, Page(s):85 - 93
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    The paper proposes a formulation of ε-Stackelberg and Stackelberg strategies for a large class of dynamic closed-loop games, discusses the interpretation of the leader's strategy as the formalization of the intuitive notion of incentives or threats, and considers limitations of the Stackelberg solution concept which, within the dynamic context, are applicable only in situations where the real... View full abstract»

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  • Strictly Hurwitz property invariance of quartics under coefficient perturbation

    Publication Year: 1983, Page(s):106 - 107
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    In this note, it is shown how the maximum interval, centered around each of the coefficients of a prescribed fourth-degree strictly Hurwitz polynomial, may be determined so that the strictly Hurwitz property remains invariant when each coefficient might be perturbed to any arbitrary value within its permissible interval. View full abstract»

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  • Second-order convergence analysis of stochastic adaptive linear filtering

    Publication Year: 1983, Page(s):76 - 85
    Cited by:  Papers (97)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB)

    The convergence of an adaptive filtering vector is studied, when it is governed by the mean-square-error gradient algorithm with constant step size. We consider the mean-square deviation between the optimal filter and the actual one during the steady state. This quantity is known to be essentially proportional to the step size of the algorithm. However, previous analyses were either heuristic, or ... View full abstract»

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  • Global transformations of nonlinear systems

    Publication Year: 1983, Page(s):24 - 31
    Cited by:  Papers (338)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    Recent results have established necessary and sufficient conditions for a nonlinear system of the form \dot{x}(t) = f(x(t))-u(t)g(x(t)) . with f(0) = 0 , to be locally equivalent in a neighborhood of the origin in Rnto a controllable linear system. We combine these results with several versions of the global i... View full abstract»

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  • Optimal short-term scheduling of large-scale power systems

    Publication Year: 1983, Page(s):1 - 11
    Cited by:  Papers (104)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1056 KB)

    This paper is concerned with the longstanding problem of optimal unit commitment in an electric power system. We follow the traditional formulation of this problem which gives rise to a large-scale, dynamic, mixed-integer programming problem. We describe a solution methodology based on duality, Lagrangian relaxation, and nondifferentiable optimization that has two unique features. First, computati... View full abstract»

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  • On variance neutrality of systems within general random parameters

    Publication Year: 1983, Page(s):101 - 103
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    A necessary condition for variance neutrality of discrete-time linear systems within general random parameters and with arbitrary observations is established. It is proved that this condition is sufficient as well if the observations are linear. This result is of importance in connection with separability, of optimal control and state estimation. View full abstract»

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  • Smith forms over R[z_{1},z_{2}]

    Publication Year: 1983, Page(s):115 - 118
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    Relationships between a polynomial matrix and its Smith forms are explored. It is shown, for example, that a matrix over R[z_{1}, z_{2}] is equivalent to its Smith form over R[z_{1}, z_{2}] if and only if a certain system of linear polynomial equations has a solution. View full abstract»

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  • Hopf bifurcation via Volterra series

    Publication Year: 1983, Page(s):42 - 53
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1072 KB)

    The Hopf bifurcation theorem gives a method of predicting oscillations which appear in a nonlinear system when a parameter is varied. There are many different ways of proving the theorem and of using its results, but the way which is probably the most useful, to control and system theorists, uses Nyquist loci in much the same way as the describing function method does. The main advantages of this ... View full abstract»

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  • Characterization of "Allowable perturbations" for robust stability

    Publication Year: 1983, Page(s):107 - 109
    Cited by:  Papers (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    The problem of determining stability for a closed-loop linear multivariable process in the presence of ill-defined process perturbations is considered. It is shown that M -matrices may be used to characterize a class of allowable perturbations. View full abstract»

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  • Equations for the angles of arrival and departure for multivariable root loci using frequency-domain methods

    Publication Year: 1983, Page(s):118 - 121
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    Frequency-domain methods are used to study the angles of arrival and departure for multivariable root loci. Explicit equations are obtained. For a special class of poles and zeros, some simpler equations that are generalizations of the single-input-single-output equations are presented. View full abstract»

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  • Persistence of excitation in extended least squares

    Publication Year: 1983, Page(s):60 - 68
    Cited by:  Papers (41)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    In least-squares parameter estimation schemes, "persistency of excitation" conditions on the plant states are required for consistent estimation. In the case of extended least squares, the persistency conditions are on the state estimates. Here, these "persistency of excitation" conditions are translated into "sufficiently rich" conditions on the plant noise and inputs. In the case of adaptive min... View full abstract»

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  • Simultaneous identification and adaptive control of unknown systems over finite parameter sets

    Publication Year: 1983, Page(s):68 - 76
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    The problem considered is one of simultaneously identifying an unknown system while adequately controlling it. The system can be any fairly general discrete-time system and the cost criterion can be either of a discounted type or of a long-term average type, the chief restriction being that the unknown parameter lies in a finite parameter set. For a previously introduced scheme of identification a... View full abstract»

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  • On computing output-error estimates

    Publication Year: 1983, Page(s):99 - 101
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    In this note, we consider a system with rational transfer function from input to output where this transfer function has p parameters. It is also supposed that the input has a spectrum consisting of p distinct points (equivalently, we suppose that the design index = p/2 ). As proved i... View full abstract»

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  • Analysis of oscillations in systems with polynomial-type nonlinearities using describing functions

    Publication Year: 1983, Page(s):31 - 41
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    Sufficient conditions for the existence of oscillations are obtained in the case of an autonomous single-loop feedback system when the nonlinear elements belong to a class of polynomials. Both a graphical procedure and an algebraic technique are presented for use with describing function analysis, and a graphical procedure is given for use with multiple input describing functions. Graphing is done... View full abstract»

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  • Simultaneous stabilization with fixed closed-loop characteristic polynomial

    Publication Year: 1983, Page(s):103 - 104
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    A solution is given to the problem of simultaneously stabilizing m single-input-single-output plants by one dynamic compensator with the constraint that each closed-loop system has the same characteristic polynomial. View full abstract»

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  • Design of linear systems with saturating linear control and bounded states

    Publication Year: 1983, Page(s):121 - 124
    Cited by:  Papers (57)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    A theorem is developed, based on the circle criterion, which gives sufficient conditions for the stability of a saturating linear control for a linear system with bounded states. This theorem can be applied to determine a range of gains for the linear control which ensures stability. It is shown by example that this approach results in an increased speed of response over that obtained by previous ... View full abstract»

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  • On output-error methods for system identification

    Publication Year: 1983, Page(s):12 - 23
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (936 KB)

    In this paper are derived consistency and asymptotic normality results for the output-error method of system identification. The output-error estimator has the advantage over the prediction-error estimator of being more easily computable. However, it is shown that the output-error estimator can never be more efficient than the prediction-error estimator. The main result of the paper provides neces... View full abstract»

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  • Efficient computation of the covariance sequence of an autoregressive process

    Publication Year: 1983, Page(s):97 - 99
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    An efficient algorithm is presented for computing the covariance sequence of a multichannel autoregressive process represented by a set of reflection coefficients. The covariance sequence is shown to be the impulse response of a certain lattice filter related to the optimal predictor. View full abstract»

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  • Design of input sequence for linear dynamic system identification

    Publication Year: 1983, Page(s):95 - 97
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    The design of stochastic input sequences for parameter identification of linear dynamic discrete-time system is considered. The determinant of the normalized error covariance matrix is used as a criterion for parameter identification quality which is, as it is shown, dependent on the input autocorrelation function. For a given form of this function, one may derive the optimal values of its paramet... View full abstract»

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  • Convergence in distribution of LMS-type adaptive parameter estimates

    Publication Year: 1983, Page(s):54 - 60
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    We study the asymptotic behavior of parameter estimates generated by LMS (least mean-square)-adaptive estimation algorithms in stationary dependent random situations. We show that, subject to mild, practically reasonable conditions, the estimates converge in distribution. Further, we extend this result to prove a more explicit type of convergence in distribution which explains other observed prope... View full abstract»

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  • A note on eigenvalue bounds in algebraic Riccati equation

    Publication Year: 1983, Page(s):109 - 111
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    In this note, an upper bound on the maximum eigenvalue of the solution matrix K of the algebraic Riccati equation is established. The approach outlined also results in several lower bounds, which are more general than those derived in [1], for some of the largest eigenvalues of K . 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