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IEEE Transactions on Automatic Control

Issue 6 • December 1980

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Displaying Results 1 - 25 of 54
  • [Front cover and table of contents]

    Publication Year: 1980, Page(s): 0
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  • Editorial: Short papers: A denouement

    Publication Year: 1980, Page(s):1025 - 1026
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  • Announcement: Student paper competition

    Publication Year: 1980, Page(s): 1026
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  • Parameter space design of robust control systems

    Publication Year: 1980, Page(s):1058 - 1072
    Cited by:  Papers (173)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1266 KB)

    Find a state or output feedback with fixed gains such that nice stability (defined by a region in the eigenvalue plane) is robust with respect to large plant parameter variations, sensor failures, and quantization effects in the controller. Keep the required magnitude of control inputs small in this design. A tool for tackling such problems by design in the controller parameter spaceKis... View full abstract»

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  • Control of constrained systems of controllability index two

    Publication Year: 1980, Page(s):1102 - 1111
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (671 KB)

    Many natural and man-made systems satisfy a strong controllability hypothesis which results from a natural partition of the state space into "position" and "velocity" coordinates. In particular, plane linkage systems used as biped locomotion models satisfy these conditions. Systems satisfying this hypothesis admit linear state-variable feedback, which can be used to position not only the poles of ... View full abstract»

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  • Compensator synthesis using (C,A,B)-pairs

    Publication Year: 1980, Page(s):1133 - 1138
    Cited by:  Papers (126)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (671 KB)

    This paper gives a general framework (in the geometric style) for the design of compensators for linear multivariable systems. Basic is the notion of a "(C,A,B)-pair of subspaces." This concept is newly defined here, and we give its simplest application (to the problem of disturbance decoupling by observation feedback). We then formulate a general compensator synthesis principle and sho... View full abstract»

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  • A time-stepping procedure for Ẋ=A1X+XA2+D, X(0)=C

    Publication Year: 1980, Page(s):1138 - 1141
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (446 KB)

    We develop an expression for the exact solution of the matrix differential problemdot{X} = A_{1} X + XA_{2} + D, X(0) = Cbased on variation of parameters and use this to devise the time-stepping relationX(t+h)=e^{A_{1}h}{X(t)+intliminf{0}limsup{h}e^{-A_{1}s}De^{-A_{2}s}ds}e^{A_{2}h}. We modify a procedure of Van Loan to effect efficient computation of all the terms necessary ... View full abstract»

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  • An adaptive d-step ahead predictor based on least squares

    Publication Year: 1980, Page(s):1161 - 1165
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    This paper examines the asymptotic properties of a least squares algorithm for adaptively calculating ad-step ahead prediction of a time series. It is shown that, with probability one, the sample mean-square difference between time recursive prediction and the optimal linear prediction converges to zero. Relatively weak assumptions are required regarding the underlying model of the time... View full abstract»

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  • Asymptotic holdability

    Publication Year: 1980, Page(s):1196 - 1198
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    Given an autonomous linear control system and a linear subspaceS subset R^{n}, we say that an initial state is asymptotically holdable inSif the trajectory can be held arbitrarily nearSon any specified compact initial interval, subject to an L1bound on input energy which depends on the initial state and the interval. It is shown that asymptotic holdabili... View full abstract»

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  • On the dimensions of the supremal (A,B)-invariant and controllability subspaces

    Publication Year: 1980, Page(s):1223 - 1225
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    The dimensions of the supremal output-nulling (A,B)- invariant and controllability subspaces of a system are explicitly determined. The role of the input and output decoupling zeros is also discussed. View full abstract»

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  • Null controllability of a nonlinear system with variable time delay

    Publication Year: 1980, Page(s):1234 - 1236
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (257 KB)

    For the nonlinear control system View full abstract»

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  • Asymptotic pole locations and nonlinear controllers

    Publication Year: 1980, Page(s):1240 - 1241
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    This note generalizes a recently introduced method which produces nonlinear controllers by assigning suitable state dependence to a scalar parameter in an existing stable controller. The form of state dependence is guided by properties of the original controller. For example, variations inTof the modified receding horizon controller are guided by the fact, proved here, that the poles as... View full abstract»

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  • Further comments on "On the numerical solution of the discrete time algebraic Riccati equation"

    Publication Year: 1980, Page(s):1252 - 1253
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (201 KB)

    First Page of the Article
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  • Comments on "On the selection of the dominant poles of a system to be retained in a low-order model"

    Publication Year: 1980, Page(s): 1253
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (109 KB)

    A limitation of the model order selection criterion as proposed in the above correspondence is pointed out. It is shown that the results obtained from the criterion are not generally unique and acceptable. View full abstract»

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  • Authors' reply

    Publication Year: 1980, Page(s): 1253
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (109 KB)

    First Page of the Article
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  • Stochastic optimal control: The discrete time case [Book reviews]

    Publication Year: 1980, Page(s):1254 - 1255
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  • [Back cover]

    Publication Year: 1980, Page(s): 0
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  • Failure of a parallel adaptive identifier with adaptive error filtering

    Publication Year: 1980, Page(s):1248 - 1250
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    The possible stall of a parallel adaptive identifier using adaptive error filtering is heuristically predicted and then verified by simulalion. View full abstract»

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  • An iterative method for generalized complementarity problems

    Publication Year: 1980, Page(s):1225 - 1227
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    Given a generalized complementarity problem (i.e., complementarity problem over a cone), Habetler and Price introduced an iterative method to solve it under the conditions that the cone is solid and the function is continuous and strongly copositive on the cone. In this paper, we provide an easier iterative method to solve this problem provided that the function is Lipschitz continuous and strongl... View full abstract»

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  • Implications and applications of Kolmogorov's superposition theorem

    Publication Year: 1980, Page(s):1227 - 1231
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    Applications of Kolmogorov's superposition theorem to non-linear circuit and system theory, statistical pattern recognition, and image and multidimensional signal processing are presented and discussed. View full abstract»

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  • Team decision theory for linear continuous-time systems

    Publication Year: 1980, Page(s):1154 - 1161
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    This paper develops a team decision theory for linear-quadratic (LQ) continuous-time systems. First, a counterpart of the well-known result of Radner on quadratic static teams is obtained for two-member continuous-time LQ static team problems when the statistics of the random variables involved are not necessarily Gaussian. An iterative convergent scheme is developed, which in the limit yields the... View full abstract»

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  • Decoupling of invertible nonlinear systems with state feedback and precompensation

    Publication Year: 1980, Page(s):1237 - 1239
    Cited by:  Papers (47)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    For a class of nonlinear invertible systems considered by Hirschorn [1], a decoupling control synthesis using state feedback and precompensation is presented. Two examples which include decoupling of vertical and horizontal path angles of a terrain-following airplane are presented. View full abstract»

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  • Model reduction for linear multivariable systems

    Publication Year: 1980, Page(s):1121 - 1127
    Cited by:  Papers (50)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    A method has been proposed for obtaining reduced-order models for multivariable systems. Termed nonminimal partial realization, this method is shown to encompass the methods of aggregation (or eigenvalue preservation) and moments matching (Padé-type approximation about more than one point). In particular, a promising subclass of reduced models, called aggregated partial realizations, is discu... View full abstract»

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  • Asymptotic convergence properties of the extended Kalman filter using filtered state estimates

    Publication Year: 1980, Page(s):1207 - 1211
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    In a recent paper, Ljung has given a convergence analysis of the extended Kalman filter (EKF) as a parameter estimator for linear systems. The analysis is done for a version of the EKF using predicted values of the state vector. In this note a similar convergence analysis is done for the EKF using filtered values of the state vector. The convergence properties of the two algorithms are similar, bu... View full abstract»

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  • On stability with large parameter variations: Stemming from the direct method of Lyapunov

    Publication Year: 1980, Page(s):1231 - 1234
    Cited by:  Papers (43)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    A new approach with a computer algorithm for determining the "largest" upper bound for parameter variations of a linear constant coefficients system for which the system remains stable is established. This approach then provides the most efficient way of evaluating such "largest" variations of the coefficients of a stable polynomial. 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