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IEEE Transactions on Automatic Control

Issue 3 • Date June 1976

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Displaying Results 1 - 25 of 48
  • [Front cover and table of contents]

    Publication Year: 1976, Page(s): 0
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    Freely Available from IEEE
  • [Back cover]

    Publication Year: 1976, Page(s): 0
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    Freely Available from IEEE
  • Decoupling by restricted state feedback

    Publication Year: 1976, Page(s):413 - 415
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    A necessary and sufficient condition for integrator decoupling of p -input m -output multivariable control systems by the restricted state feedback control law, u = GFx + G\upsilon , is established. View full abstract»

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  • A note on the single-input optimal regulator problem

    Publication Year: 1976, Page(s):430 - 431
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

    A simple method for obtaining the optimal control law for single-input systems without solving the Riccati equation is presented. View full abstract»

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  • Decentralized feedback controls for the brakeless operation of multilocomotive powered trains

    Publication Year: 1976, Page(s):358 - 363
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    This short paper presents an application of linear regulator theory to the control of multilocomotive powered unit trains. Locomotives are taken to be situated at the front, middle, and end of the train. Their feedback controls are linear functions of the deviations in locomotive schedule velocity and the coupler forces around the locomotive. The controls are designed by assuming that various loco... View full abstract»

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  • Continuous time smoothing for systems with interrupted observations

    Publication Year: 1976, Page(s):428 - 430
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    General continuous time smoothing results for state estimation with interrupted observations are derived. The interruption mechanism is characterized by a jump Markov process taking values 0 or 1. The approach followed for deriving the smoothing estimator is similar to the one used in [1] for the case of filtering where interruption process initial value and the jump instants are treated as the un... View full abstract»

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  • On error bounds for successive approximation methods

    Publication Year: 1976, Page(s):394 - 396
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    This note considers a class of contraction mappings and the successive approximation method for obtaining the associated fixed points. Some error bounds are provided which generalize and strengthen those given by McQueen [1] and Denardo [2] for dynamic programming algorithms. View full abstract»

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  • Canonical form of reduced nonfixed parameters

    Publication Year: 1976, Page(s):412 - 413
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    The aim of this correspondence is to show that one of the Luenberger canonical forms can be represented uniquely by a reduced number of nonfixed parameters, and to develop an algorithm not involving any matrix inverse so that these parameters can be obtained very easily. View full abstract»

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  • Our third decade

    Publication Year: 1976, Page(s): 305
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (96 KB)

    First Page of the Article
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  • A useful transformation in the synthesis of adaptive observers

    Publication Year: 1976, Page(s):417 - 419
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    This correspondence points out the advantages of a transformation which allows a unified approach to the design of adaptive observers for unknown linear single input-single output plants with guaranteed global stability and implementable adaptive laws. A new structure of an adaptive observer is also given. View full abstract»

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  • Feature selection for nonlinear stochastic system classification

    Publication Year: 1976, Page(s):375 - 378
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A decision-theoretic formulation is given for the problem of classifying an unknown nonlinear stochastic system into one of M classes when only input-output measurements are available. This leads directly to a pattern recognition solution for the problem, and Bayes-Risk theory yields the likelihood-ratio test for class determinations. Parameterizations which yield an implicit description for unkno... View full abstract»

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  • On the decoupling of linear time-varying control systems

    Publication Year: 1976, Page(s):410 - 412
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    Some recent results concerning the input-output decoupling problem of time-invariaut systems, for which the decoupling matrix B* is not invertible, are extended to time-varying systems. It is shown that the maximum number of input-output pairs which can be decoupled by linear state feedback is equal to rank B*(t) = r , w... View full abstract»

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  • Suboptimality bounds and stability in the control of nonlinear dynamic systems

    Publication Year: 1976, Page(s):396 - 399
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    Certain results paralleling those of Bailey and Ramapriyan [1] for linear dynamic systems are presented for nonlinear systems. For "weakly perturbed" systems certain suboptimal controls are shown to be stabilizing and upper and lower bounds on the suboptimality are investigated. View full abstract»

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  • Optimization for unspecified terminal time

    Publication Year: 1976, Page(s):404 - 405
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    This note discusses a continuous optimal control problem in which the terminal time is unspecified and where an integral cost functional is determined by averaging over the process interval. Sufficient conditions are given for the case where optimization is effected on an instantaneous rather than an integral basis. View full abstract»

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  • On continued fraction inversion by Routh's algorithm

    Publication Year: 1976, Page(s): 394
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (94 KB)

    This note points out that the generalized algorithm proposed recently by Chao et al. for Cauer second form can be applied for inverting a continued fraction in the Cauer first form by merely writing the transfer function as a ratio of two polynomials arranged in the descending powers of " S ." View full abstract»

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  • Conditions for the absence of limit cycles

    Publication Year: 1976, Page(s):339 - 345
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    Sufficient conditions are derived for the nonoccurrence of limit cycles in a class of nonlinear multivariable feedback systems, where the nonlinearities are single-valued, time-invariant, and slope-restricted. The conditions involve the transfer function matrix of the linear part of the system, and can be interpreted graphically in terms of Nyquist diagrams. View full abstract»

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  • Extension of validity of GRG method in optimal control calculation

    Publication Year: 1976, Page(s):420 - 422
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Abadie's hypothesis H places severe limitations on the class of problem for which the generalized reduced gradient method may be used to calculate optimal control trajectories in the presence of state and control inequality, constraints. This correspondence indicates that calculation of the reduced state target tube enables the validity of hypothesis View full abstract»

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  • On the steering of automated vehicles: Theory and experiment

    Publication Year: 1976, Page(s):306 - 315
    Cited by:  Papers (56)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (928 KB)

    Several facets of the automatic lateral control of individual ground vehicles are considered in detail. First, a path-dependent coordinate system for describing vehicle motion is defined, and the availability of motion quantities for control purposes is specified. Second, the lateral dynamics of a typical U.S. passenger sedan are empirically obtained and validated with data from full-scale studies... View full abstract»

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  • A spline-theoretic approach to minimum-energy control

    Publication Year: 1976, Page(s):391 - 393
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The problem of minimum-energy control of linear systems with linear functional constraints on the output is considered from a spline-theoretic viewpoint. It is shown that constrained minimum-energy control and spline interpolation are dual projection problems: if the given system is driven by the minimum-energy control, the system output will be the spline that interpolates the output constraints.... View full abstract»

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  • A simple method for finding a basis for the null-space of a matrix

    Publication Year: 1976, Page(s):402 - 403
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB)

    An elementary, but not sufficiently well-known algorithm for finding a basis for the null-space of a matrix is given. Its use is illustrated for the computation of generalized eigenvectors and the matrix pseudoinverse. View full abstract»

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  • Modern Wiener-Hopf design of optimal controllers--Part II: The multivariable case

    Publication Year: 1976, Page(s):319 - 338
    Cited by:  Papers (386)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1544 KB)

    In many modern-day control problems encountered in the fluid, petroleum, power, gas and paper industries, cross coupling (interaction) between controlled and manipulated variables can be so severe that any attempt to employ single-loop controllers results in unacceptable performance. In all these situations, any workable control strategy most take into account the true multivariable nature of the ... View full abstract»

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  • More A_{1}E+EA_{2}=-D and \dot{X}=A_{1}X+XA_{2}+D,X(0)=C

    Publication Year: 1976, Page(s):405 - 406
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB)

    The solution of the real matrix equation A_{1}E + EA_{2} = - D is given in terms of the eigenvalues and eigenvectors of A_{1} \in R^{{n}_{1} \times n_{1}}, A_{2} \in R^{n_{2} \times n_{2}} , and the elements of D . The solution is valid if the Aiare symmetric or if they do ... View full abstract»

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  • On the design of multivariable control systems

    Publication Year: 1976, Page(s):403 - 404
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    A general approach for computing the stationary feedback gain of a linear system with specified response characteristic is outlined. The proposed approach can be applied with advantage to the design of multivariable systems as an alternative to the existing methods for design of such systems with specified pole locations. View full abstract»

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  • Singular perturbation methods for variational problems in aircraft flight

    Publication Year: 1976, Page(s):345 - 353
    Cited by:  Papers (42)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    The solution of variational problems by singular perturbation methods is discussed. In addition to the benefits of order reduction, these methods also can serve as practical devices for treating the singularities arising in problems where the control appears linearly and/or in state-constrained control problems. Furthermore, approximate feedback solutions can be derived for problem formulations th... View full abstract»

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  • Necessary conditions for a class of smooth second-order distributed systems

    Publication Year: 1976, Page(s):424 - 426
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    Necessary conditions are derived for the optimum control of a class of smooth second-order distributed systems subject to general boundary conditions of the Neumann type. 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