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Automatic Control, IEEE Transactions on

Issue 5 • Date October 1976

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Displaying Results 1 - 25 of 53
  • [Front cover and table of contents]

    Publication Year: 1976 , Page(s): 0
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    Freely Available from IEEE
  • Comments on "Cooperative games and vector-valued criteria problems"

    Publication Year: 1976 , Page(s): 806 - 807
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (187 KB)  

    A theorem in the above paper,[1] giving sufficient conditions for the local Pareto optimality, is shown to be incorrect by a counter-example and a revision of its proof. Moreover, an alternative formulation of this theorem is suggested. View full abstract»

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  • Author's reply

    Publication Year: 1976 , Page(s): 807 - 808
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (191 KB)  

    First Page of the Article
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  • [Back cover]

    Publication Year: 1976 , Page(s): 0
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    Freely Available from IEEE
  • Stability criterion of oscillations in nonlinear autonomous systems

    Publication Year: 1976 , Page(s): 778 - 779
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (216 KB)  

    Necessary and sufficient conditions for the stability of oscillations in nonlinear autonomous systems are derived. A second-order transfer function for the linear element is supposed. View full abstract»

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  • Generalized Chandrasekhar algorithms: Time-varying models

    Publication Year: 1976 , Page(s): 728 - 732
    Cited by:  Papers (8)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (520 KB)  

    The Riccati equation (RE) plays a fundamental role in optimal control theory, linear estimation, radiative transfer, neutron transport theory, etc. Its effective, numerical solution constitutes the integral prerequisite to the solution of important problems in the above and related fields. A computationally advantageous approach to the solution of matrix Re's is the so-called View full abstract»

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  • Stability of linear time-varying systems with state dependent noise

    Publication Year: 1976 , Page(s): 775 - 776
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (192 KB)  

    The mean-square stability of linear time-varying systems with state dependent noise is considered. The stability conditions concerning the magnitude of the state dependent noise are presented. View full abstract»

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  • Bode compensator design

    Publication Year: 1976 , Page(s): 771 - 773
    Cited by:  Papers (19)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (272 KB)  

    Since cascade compensation of feedback control systems has been first presented, the determination of the lead or lag-lead network has been taught as a trial and error procedure. This correspondence presents a method, based upon the solution of a quadratic equation or a set of parametric curves, which will eliminate this trial and error. Examples for each case are given. View full abstract»

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  • General procedure for multivariable polynomial positivity test with control applications

    Publication Year: 1976 , Page(s): 696 - 701
    Cited by:  Papers (18)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (640 KB)  

    A procedure is given to determine whether or not a polynomial in several real variables is globally positive. Emphasis is placed on the resolution of singularities of various types that occur during the implementation of the algorithm. A nontrivial example encountered in application of Lyapunov direct method to stability investigation of nonlinear control systems is given to illustrate the details... View full abstract»

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  • A class of controllable nonlinear systems

    Publication Year: 1976 , Page(s): 787 - 789
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (296 KB)  

    Sufficient conditions for global and local controllability of the nonlinear system frac{d}{dt}x(t) = A(t,x(t), u(t))x(t) + B(t)u(t) + f(t,x(t), u(t)) and its perturbed system are given. These conditions extend some previous results through the removal of certain boundedness conditions involving the functions ( A,f ) and ... View full abstract»

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  • Stochastic linear differential game with a square integrable martingale as noise

    Publication Year: 1976 , Page(s): 764 - 766
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (304 KB)  

    The problem of a stochastic linear differential game with any square integrable Martingale as the noise is solved. The solution is obtained by converting the problem to an optimization problem in a Hilbert space. View full abstract»

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  • Min-max quadratic cost control of systems described by approximate models

    Publication Year: 1976 , Page(s): 651 - 659
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (792 KB)  

    This paper considers the design of output regulators with the use of approximate models. The measure of the approximation between process and model outputs is represented by a bound in norm of the output error signals and it requires the computation of two numbers. The design is achieved with a rain-max approach where control and error signals are the two antagonists. The min-max solution is obtai... View full abstract»

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  • An alternative formulation of a distributed-parameter optimal cotrol problem applied to nuclear shielding

    Publication Year: 1976 , Page(s): 668 - 676
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (688 KB)  

    An alternative formalism for optimal control of distributed parameter systems is proposed. Necessary conditions for optimality and transversality conditions are developed for a class of distributed-parameter systems. It is shown that when the distributed system becomes a lumped-parameter one, the results obtained become identical to known results of optimal control of lumped systems. The formalism... View full abstract»

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  • A model-referenced controller for stabilizing large transient swings in power systems

    Publication Year: 1976 , Page(s): 746 - 750
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (528 KB)  

    This short paper deals with a control strategy which is considered reasonable for on-line stabilization of the large transient swings that occur in power systems following a major system disturbance. The strategy is compared to other similar strategies both in terms of philosophy and physical application. The example shows the benefit of on-line coordinated application of a dynamic brake and netwo... View full abstract»

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  • A sequential failure detection technique and its application

    Publication Year: 1976 , Page(s): 750 - 757
    Cited by:  Papers (19)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (752 KB)  

    An integral element of a highly reliable, fault-tolerant system is an efficient failure detection and isolation (FDI) technique. This short paper presents an FDI system whose design criterion is the minimization of the mean time to detect system failures subject to constraints on false-and miss-alarm error probabilities. The cost of missed failure is measured by system performance degradation, whi... View full abstract»

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  • Efficient computation of gradient and hessian of likelihood function in linear dynamic systems

    Publication Year: 1976 , Page(s): 781 - 783
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (312 KB)  

    This technical note describes a computationally efficient procedure to determine the first and second gradients of the likelihood function for parameter estimation in linear dynamic systems. The results presented here are extensions, of the sensitivity functions reduction procedure of [1]. An operation count shows the value of the new algorithm. View full abstract»

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  • Identification of linear systems with time-delay operating in a closed loop in the presence of noise

    Publication Year: 1976 , Page(s): 711 - 716
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (496 KB)  

    The subject of this short paper is on-line identification of the parameter vector defining a linear dynamical system which operates in a closed loop in the presence of noise, and incorporates a time delay. The method is based on the equation error. Other known subsystems in the closed-loop system increase the dimension of the closed-loop parameter vector which tends to degrade the estimation conve... View full abstract»

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  • Recursive filtering in the presence of biases with irreducible uncertanty

    Publication Year: 1976 , Page(s): 789 - 790
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (184 KB)  

    A simplification of the "separate-bias" algorithm described in [1] is afforded by the assumption that the covariance matrix of the bias cannot be reduced by the operation of the filter. The calculations are illustrated for a biased sensor governed by a first-order differential equation. View full abstract»

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  • On the flexibility offered by state feedback in multivariable systems beyond closed loop eigenvalue assignment

    Publication Year: 1976 , Page(s): 689 - 692
    Cited by:  Papers (152)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (408 KB)  

    A characterization is given for the class of all closed loop eigenvector sets which can be obtained with a given set of distinct closed loop eigenvalues using state feedback. It is shown, furthermore, that the freedom one has in addition to specifying the closed loop eigenvalues is precisely this: to choose one set of closed loop eigenvectors from this class. Included in the proof of this result i... View full abstract»

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  • Dead-beat control and the Riccati equation

    Publication Year: 1976 , Page(s): 791 - 792
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (216 KB)  

    Connections between dead-beat control strategies and optimal control policies for linear, time-invariant, discrete-time systems are established. The performance index of the system is quadratic and only the terminal state of the system is penalized. An explicit solution to the singular Riccati equation, associated with this optimization problem, is given. Properties of the time-variable gain matri... View full abstract»

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  • Partitioned Ricatti solutions and integration-free doubling algorithms

    Publication Year: 1976 , Page(s): 677 - 689
    Cited by:  Papers (13)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1280 KB)  

    Generalized partitioned solutions (GPS) of Riccati equations (RE) are presented in terms of forward and backward time differential equations that are theoretically interesting, possibly computationally advantageous, as well as provide interesting interpretations of these resuits, e.g., in terms of generalized partial observability and controllability matrices. The GPS are the natural framework for... View full abstract»

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  • Random point processes

    Publication Year: 1976 , Page(s): 808 - 809
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (264 KB)  

    First Page of the Article
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  • Minimal dynamic inverses for linear systems with arbitrary initial states

    Publication Year: 1976 , Page(s): 766 - 769
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (368 KB)  

    In this short paper the problem of finding a minimal left inverse of a linear time-invariant system for nonzero initial conditions is considered. It is shown that this problem is equivalent to finding a minimal dynamical cover. As a result of this, the minimal inverse problem can be solved immediately using the previous results on dynamic covers. No restriction other than invertibility is assumed ... View full abstract»

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  • A new input-output canonical form for multivariable systems

    Publication Year: 1976 , Page(s): 692 - 696
    Cited by:  Papers (12)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (528 KB)  

    A new canonical form for input-output difference (differential) descriptions for linear multivariable systems is proposed. A complete algorithm for the transformation of generical input-output descriptions to the canonical form is also described. This algorithm is based on elementary row operations performed on polynomial matrices. View full abstract»

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  • Optimal phase demodulation

    Publication Year: 1976 , Page(s): 732 - 737
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (592 KB)  

    A new realization method for synthesis of the optimal cyclic loss nonlinear filter using a third generation digital computer is proposed. This method consists of carrying a finite set of Fourier coefficients of the conditional density of signal given the observations, and updating these coefficients to determine the Fourier coefficients of the a posteriori density when new observations are obtaine... 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