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IEEE Transactions on Automatic Control

Issue 1 • February 1970

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Displaying Results 1 - 25 of 61
  • [Front cover and table of contents]

    Publication Year: 1970, Page(s): 0
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  • Issue in brief

    Publication Year: 1970, Page(s):1 - 2
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  • A new method of recursive estimation in discrete linear systems

    Publication Year: 1970, Page(s):18 - 24
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (897 KB)

    Let the measurementz(i)at instantibe of formz(i) = y(i) + eta(i)whereeta(i)is the noise andy(i)is the signal obeying a system of coupled linear difference equations. A method is given for computing the gains of the predictor and filter for the signaly(i)and the corresponding statex(i). The gains are computed recursively f... View full abstract»

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  • Pole placement using dynamic compensators

    Publication Year: 1970, Page(s):34 - 43
    Cited by:  Papers (249)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1113 KB)

    The problem of designing a compensator to obtain arbitrary pole placement in the system consisting of the plant and compensator in cascade is considered. The design uses only those state variables which can be measured. It is shown that for a controllable observable plant a compensator of orderbeta = min(nu_{c} - 1, nu_{o} - 1)is sufficient to achieve this result. Herenu_{c}(nu_{o}... View full abstract»

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  • On the determination of the optimal constant output feedback gains for linear multivariable systems

    Publication Year: 1970, Page(s):44 - 48
    Cited by:  Papers (543)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    The optimal control of linear time-invariant systems with respect to a quadratic performance criterion is discussed. The problem is posed with the additional constraint that the control vectoru(t)is a linear time-invariant function of the output vectory(t) (u(t) = -Fy(t))rather than of the state vectorx(t). The performance criterion is then averaged, and algebraic ... View full abstract»

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  • Computation of optimal singular controls

    Publication Year: 1970, Page(s):67 - 73
    Cited by:  Papers (70)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (960 KB)

    A class of singular control problems is made nonsingular by the addition of an integral quadratic functional of the control to the cost functional; a parameterepsilon > 0multiplies this added functional. The resulting nonsingular problem is solved for a monotonically decreasing sequence{epsilon; epsilon_{1} > epsilon_{2} > ... > epsilon_{k} > 0}. Ask right... View full abstract»

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  • On the solution of time-optimal control problems in the presence of quadratic constraints

    Publication Year: 1970, Page(s):114 - 115
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    It is shown that the minimization ofparallel k parallel_{2}with respect to λ results in a set ofmequations which are linear in (m - 1) lambdas and nonlinear in the minimum time. These equations can also be obtained by satisfying the terminal conditions subject to the condition,lambda cdot e_{d} = 1. View full abstract»

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  • A note on switching times for time-optimal control systems

    Publication Year: 1970, Page(s):118 - 119
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (263 KB)

    The transformed state equation is used to determine switching times fornth-order optimal control problems, provided that the control is bang-bang with a maximum ofn - 1switches. View full abstract»

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  • Irreducibility of dynamical equation realizations of sets of differential equations

    Publication Year: 1970, Page(s): 131
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (168 KB)

    The irreducibilities of dynamical equation realizations of sets of linear time-invariant differential equationsD(p)y(t) = N(p)u(t)are studied. It is demonstrated that a realization ofD(p)y(t) = N(p)u(t)can be irreducible only if the degree of the determinant ofD(s)is equal to the degree of the rational matrixD^{-1}(s)N(s). View full abstract»

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  • On necessary conditions for decoupling multivariable control systems

    Publication Year: 1970, Page(s):131 - 133
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (413 KB)

    Two necessary conditions for decoupling of anm- inputm-output multivariable control system via state variable feedback are that the control and output matrices must be of rankm. View full abstract»

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  • An alternate approach to expandingPA+A'P=-Q

    Publication Year: 1970, Page(s):135 - 137
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    The problem of expanding the matrix equationPA + A'P = - Qinto a system of algebraic equations is considered. Starting from the previously published results, it suggests an alternate approach which is rather simple and very effective in computer applications. This approach is particularly useful when the given equation has to be solved iteratively which is the case in solution of the al... View full abstract»

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  • On the stability of saturating nonlinear feedback systems

    Publication Year: 1970, Page(s): 140
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB)

    A saturating nonlinearity contained in a stable feedback system can be considered to lie within the sector [varepsilon,k]. Thus all the well-known Popov-type stability criteria are applicable for the saturating nonlinear feedback system. View full abstract»

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  • Performance cost functions for a reaction-jet controlled system during an on-off-on limit cycle

    Publication Year: 1970, Page(s):152 - 153
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (273 KB)

    Some earlier results [1] are extended to a mode of control for the systemddot{theta}(t) - M_{alpha}theta(t) = ddot{theta}_{T} u(t)when the command is zero, that is, the on-off-on limit-cycle mode which is quite popular with missile control designers. Measures which describe the performance of this system during the on-off-on mode are tabulated as functions of the limit-cycle's switching... View full abstract»

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  • Comment on "An innovations approach to least-squares estimation, part I: Linear filtering in additive white noise"

    Publication Year: 1970, Page(s):158 - 159
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (250 KB)

    First Page of the Article
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  • Correction to "Differential dynamic programming methods for solving bang-bang control problems"

    Publication Year: 1970, Page(s): 159
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (82 KB)

    First Page of the Article
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  • Review of "Optimization by vector space methods"

    Publication Year: 1970, Page(s):160 - 161
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    Freely Available from IEEE
  • Review of "State increment dynamic programming"

    Publication Year: 1970, Page(s): 162
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    Freely Available from IEEE
  • [Back cover]

    Publication Year: 1970, Page(s): 0
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    Freely Available from IEEE
  • Application of Popov's criterion to signal stabilization in discrete systems

    Publication Year: 1970, Page(s):142 - 143
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    In a previous paper [1], a new method called the dual input discrete describing function (DIDDF) was presented, which enables one to determine the minimum amplitude of sinusoidal dither to be applied, to stabilize a relay type sampled-data control system. In this correspondence Popov's method is used to find the minimum amplitude of the dither to be applied to quench the limit cycles occurring in ... View full abstract»

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  • Identification of Green's function for distributed parameter systems

    Publication Year: 1970, Page(s):155 - 157
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    The problem of identifying Green's function of a linear time-invariant distributed parameter system is considered. A discrete lumped version of the distributed system is developed for which a pointwise approximation of Green's function is the state transition matrix. A stochastic approximation algorithm is presented for the identification of the pointwise approximation of Green's function in the p... View full abstract»

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  • On the convergence of a discrete Volterra series

    Publication Year: 1970, Page(s):140 - 142
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    This correspondence deals with a method for generating a discrete Volterra type series expansion for certain non-linear difference equations describing a class of nonlinear discrete-data systems. The method permits the formulation of a criterion for the convergence of the series via the contraction mapping principle. View full abstract»

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  • On the identification of time-invariant discrete processes

    Publication Year: 1970, Page(s):153 - 155
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    An identification procedure for determination of coefficients of pulse transfer function is proposed. This procedure is applicable for the case when measurement noises of input and output are independent of input to a process and the variances of the noises are known only in the form of the ratio. The noises can be colored. The criterion used for identification is given by extending the mean-squar... View full abstract»

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  • Second-order state-space formulation of systems

    Publication Year: 1970, Page(s):126 - 128
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    A method of describing systems by sets of second-order differential equations is suggested. In this second-order state-space formulation the states are defined in a manner slightly different from the conventional one. It is shown that this modified procedure reduces the order of matrices, renders easier the evaluation of the characteristic equation and the system solution, and provides some additi... View full abstract»

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  • Measurement of Wiener kernels with binary random signals

    Publication Year: 1970, Page(s):123 - 125
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A class of random binary signals have statistical properties which can be considered a first approximation to the Gaussian ones. These binary signals are suggested to be used for the identification of nonlinear systems. For that a design of a cross correlator is proposed which takes advantage of the simplicity in handling these signals. View full abstract»

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  • On a deterministic theory of estimation and control

    Publication Year: 1970, Page(s):125 - 126
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    In a recent paper Johnson [1] outlined certain qualitative equivalences between linear deterministic control systems and linear stochastic optimal control systems. This note analyzes the equivalence properties in more detail and establishes a theorem on the inverse stochastic optimal control problem. This theorem is equivalent to Kalman's circle criterion [2] for the restricted stationary case. 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