IEEE Transactions on Automatic Control

Issue 5 • October 1970

Filter Results

Displaying Results 1 - 25 of 33
  • [Front cover and table of contents]

    Publication Year: 1970, Page(s): 0
    Request permission for commercial reuse | |PDF file iconPDF (132 KB)
    Freely Available from IEEE
  • On a priori error estimates of some identification methods

    Publication Year: 1970, Page(s):541 - 548
    Cited by:  Papers (49)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (998 KB)

    This paper examines in detail the estimation errors of two algorithms proposed by Koopmans [1] and Levin [2] for identifying linear systems described by annth-order scalar difference equation. Necessary and sufficient conditions are established for the strong consistency of the estimates that these algorithms generate. A priori error bounds on estimation error are obtained to provide a ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the input and output reducibility of multivariable linear systems

    Publication Year: 1970, Page(s):563 - 569
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1116 KB)

    By introducing into a constant linear system (F, G, H) with input vectoruand output vectoryan open-loop controlu = Pvand observerz = Qy, a new constant linear system (F, GP, QH) results which has input vectorupsilonand output vectorz. The problem investigated is one of constructing (F, GP, QH) so tha... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On constructing efficient evasion strategies for a game with imperfect information

    Publication Year: 1970, Page(s):576 - 580
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (672 KB)

    In structuring tactics for evading a pursuing vehicleP, it is often the case that the evaderEdoes not know the intercept time.E's policy must by necessity be random, the precise definition being dependent upon the dynamic description of the vehicles and the geometry of the engagement. A method of designing efficient evasion tactics that apportions available maneuve... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance of linear systems disturbed along a stability ray

    Publication Year: 1970, Page(s):593 - 594
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (265 KB)

    A problem of large plant parameter variations in linear optimal control systems is investigated. Attention is focused on parameter variations along a stability ray. A closed form expression is derived relating the occurrence of a disturbance along a stability ray to a change in system performance. Limiting behavior of the performance criterion as the stability ray is traversed toward -infty View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Controllability of linear time-invariant sampled-data systems with nonconstant shaping functions

    Publication Year: 1970, Page(s):594 - 595
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (233 KB)

    This paper is concerned with the controllability of single-input linear time-invariant plants after introduction of sampling in such a way that, for the timekT < t leq (k + 1)T, the input isu_{k}f(t - kT), where ukis a real constant andf(t)is a bounded piecewise continuous shaping-function given in0 < t leq T. Necessary and sufficient co... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An algorithm to solve matrix equationsPH^{T} = GandP= φPφT+ γγT

    Publication Year: 1970, Page(s): 600
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (150 KB)

    An iterative algorithm is presented for the numerical solution of matrix equationsPH^{T} = GandP = PhiPPhi^{T} + GammaGamma^{T}, whereP geq 0andG, H, andPhiare given. These equations arise in various identification, network synthesis, and stability analysis problems. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A novel method of evaluatinge^{At}in closed form

    Publication Year: 1970, Page(s):600 - 601
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (291 KB)

    A new method for evaluating the exponential of a matrix with distinct eigenvalues in closed form is presented. This technique uses the Vandermonde matrix and is in many respects superior to other known methods. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A method for the determination of s-plane realizability regions

    Publication Year: 1970, Page(s):607 - 611
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (617 KB)

    A method for the determination of boundary lines that enclose the root contours of control systems is presented. The boundary lines divide thesplane into realizability regions within which the complex conjugate roots of the system characteristic equation must lie. The method is valid for positive and negative real values of two variable system parameters. Furthermore, the implementation... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A concise expression for the switching coefficients for p-n feedback systems

    Publication Year: 1970, Page(s):612 - 614
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (452 KB)

    The optimum switching condition for p-n feedback control systems is investigated. A simple algebraic formula for calculating the coefficients of the major switching equation fornth-order systems is derived, eliminating the cumbersome calculations required by previous methods. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Comments on "Quantizer-induced digital controller limit cycles"

    Publication Year: 1970, Page(s):614 - 615
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (270 KB)

    The analysis of quantizer-induced limit cycles developed in a recent correspondence item is shown to differ significantly from observed results. In particular, quantization limit cycles can occur in digital loops under much less stringent conditions than those indicated. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Correction to "On the optimization of a certain class of nonlinear systems"

    Publication Year: 1970, Page(s): 614
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (146 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • [Back cover]

    Publication Year: 1970, Page(s): 0
    Request permission for commercial reuse | |PDF file iconPDF (109 KB)
    Freely Available from IEEE
  • A matrix inversion identity

    Publication Year: 1970, Page(s): 599
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (144 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A nonrecursive algebraic solution for the discrete Riccati equation

    Publication Year: 1970, Page(s):597 - 599
    Cited by:  Papers (114)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (368 KB)

    Equations for the optimal linear control and filter gains for linear discrete systems with quadratic performance criteria are widely documented. A nonrecursive algebraic solution for the Riccati equation is presented. These relations allow the determination of the steady-state solution of the Riccati equation directly without iteration. The relations also allow the direct determination of the tran... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Uniform performance-adaptive renewal policies for linear systems

    Publication Year: 1970, Page(s):581 - 583
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (488 KB)

    The model for a linear system with renewal capability presented by Ratner and Luenberger [1] is investigated. An algorithm is given for determining a region over which immediate renewal is the optimal policy. The optimal feedback gains are given for system operation with immediate renewal. A scalar example illustrates the utilization of the algorithm. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The analysis and design of pneumatic systems

    Publication Year: 1970, Page(s): 616
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (160 KB)

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Initial condition theorem for linear time-varying systems

    Publication Year: 1970, Page(s):596 - 597
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (248 KB)

    Abstract-A general formula for reducing the initial values of linear time-varying systems to an equivalent forcing function is derived utilizing the block diagram representation of the system. An example is given to show the validity of the theorem. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reduction of the sensitivity of an optimal control system to plant parameter variations

    Publication Year: 1970, Page(s):589 - 590
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (264 KB)

    Comparison between open- and closed-loop implementations have been made by Youla and Dorato [1] and Kriendler [2], etc., but the implementation with two degrees of freedom does not appear to have been considered. An attempt to reveal the potentiality of the implementation with two degrees of freedom in applying the configuration to reduce various sensitivities of an optimal system due to plant par... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis of digital predictive compensation

    Publication Year: 1970, Page(s):604 - 606
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (392 KB)

    The analysis and dynamic behavior of a predictive type learning control system are considered. An output transform is derived for a system containing a digital predictor, and examples are given of the system's dynamic performance. The output transform is then modified to describe a realistic situation in which time delay is required for input identification by means of a template matching techniqu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A new algorithm for reducing a linear differential system to state form

    Publication Year: 1970, Page(s):601 - 603
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (384 KB)

    An algorithm for obtaining a state representation for linear multi-input multi-output systems described by simultaneous differential equations is presented. The method is applicable both for the time-variant and time-invariant cases. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Singular arcs occurring in optimal electric steel refining

    Publication Year: 1970, Page(s):549 - 556
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (984 KB)

    A second-order nonlinear model of steel refining in an electric are furnace is formulated and optimized. Iterative computation using steepest descent shows the existence of an optimal singular arc, which is then found more precisely by directly applying necessary conditions for such an arc. When a soft (penalty-function) constraint on state is replaced by a hard constraint, a state-constrained arc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A note on the nature of optimality in the discrete Kalman filter

    Publication Year: 1970, Page(s):603 - 604
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (248 KB)

    A derivation is presented in which it is shown that the optimal gain sequence of the discrete Kalman filter minimizes not only the trace of the estimation covariance matrix, but any linear combination of the main diagonal elements of that matrix. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A launch vehicle stability analysis using the parameter plane method

    Publication Year: 1970, Page(s):611 - 612
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (328 KB)

    An attitude control system, which uses the acceleration vector attitude as the control variable, has been postulated for control of the first stage of a large space booster. The goal of this system is to minimize lateral drift. A stability analysis of this system based upon the parameter plane method is described. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Temperature control of the inertial-grade floated rate-integrating gyroscope

    Publication Year: 1970, Page(s):521 - 529
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1336 KB)

    The performance of the inertial-grade floated rate-integrating gyroscope is critically dependent on the instrument surface temperature distribution. During operation, the instrument is degraded by distributed surface heat-flux disturbances, and it is desired to control the surface temperature distribution in a closed-loop feedback configuration such that the instrument degradation is minimized. Th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

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