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IEEE Transactions on Automatic Control

Issue 5 • Date October 1967

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Displaying Results 1 - 25 of 57
  • [Front cover and table of contents]

    Publication Year: 1967, Page(s): 0
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    Freely Available from IEEE
  • On packages and things

    Publication Year: 1967, Page(s): 481
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    Freely Available from IEEE
  • Issue in brief

    Publication Year: 1967, Page(s):482 - 483
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    Freely Available from IEEE
  • Dynamic control of high-performance two-phase servomotors

    Publication Year: 1967, Page(s):484 - 490
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (569 KB)

    A method for eliminating the electrical transients in high-performance sleeve induction motors is shown whereby response times of one millisecond can be achieved. Improved dynamic performance and a fivefold reduction in the standby power normally required are gained by using phase-modulated, variable amplitude inputs to both the control and reference windings. The reduction in the input power and ... View full abstract»

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  • Characterization of nonlinearity for transient processes: Its evaluation and application

    Publication Year: 1967, Page(s):491 - 501
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (815 KB)

    A brief outline of the method of transient analysis which employs half-period transient-gain (HPTG) characterizing functions to linearize the nonlinearity in control systems is first given. Two theorems concerning these functions are then presented. The first theorem shows that the HPTG of a nonlinearity, which is formed by adding N other characteristics, is the sum of the HPTG functions of the N ... View full abstract»

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  • Real-time optimal guidance

    Publication Year: 1967, Page(s):501 - 506
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (633 KB)

    This paper describes an algorithm for repetitive in-flight calculation of optimal rocket steering laws for orbital injection and rendezvous missions. The algorithm is based on a general "indirect" method of solving the optimal-trajectory problem as a boundary-value problem in ordinary differential equations, and it avoids assuming artificial physical simplifications or specialized mission definiti... View full abstract»

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  • Control of nonlinear multivariable systems

    Publication Year: 1967, Page(s):506 - 515
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (826 KB)

    A method of controlling nonlinear nonautonomous multivariable systems is presented in which the control variables are subject to magnitude constraints. The system is designed to track a non-linear model within some region of the state space, the size of this region being a function of certain model parameters. To illustrate the method, the technique is applied to the control of an exothermic chemi... View full abstract»

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  • Optimum terminal control of continuous systems via successive approximation to the reachable set

    Publication Year: 1967, Page(s):515 - 521
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (577 KB)

    Linear systems with quadratic terminal cost function and inputs with bounded amplitudes are considered. The optimal control and optimal terminal state are associated with the minimum value of the cost function. An iteration procedure is developed whereby a sequence of subsets of the reachable set are generated such that the sequence converges to a subset containing the optimal terminal state. The ... View full abstract»

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  • An improved algorithm for the solution of discrete regulation problems

    Publication Year: 1967, Page(s):522 - 528
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (518 KB)

    This paper describes an improved algorithm for obtaining the steady-state feedback-gain matrix from the discrete matrix Riccati equation. This is of importance in the steady-state optimization of discrete linear systems with quadratic performance criteria. The solution of the Riccati equation by the natural iteration technique suggested by its dynamic programming derivation requires, in general, <... View full abstract»

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  • Optimal control of measurement subsystems

    Publication Year: 1967, Page(s):528 - 536
    Cited by:  Papers (123)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (711 KB)

    This paper considers an important class of problems known as measurement adaptive problems, in which control is available over not only the plant (i.e., the state equation contains a control variable) but also the measurement subsystem (i.e., the measurement equation contains a control variable). In the general situation the problem is shown to be a generalization of the combined optimization prob... View full abstract»

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  • Optimum filtering and control of randomly sampled systems

    Publication Year: 1967, Page(s):537 - 546
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (801 KB)

    Kalman's concept of optimum filtering is interpreted in such a way that it can be applied to both nonlinear and linear systems with Gaussian or non-Gaussian statistics. The essential idea is to synthesize a generalized Kalman filter in two stages, a) propagation and b) measurement and correction. The analysis of each stage is independent of the other, and the generalized results are quite simple. ... View full abstract»

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  • Approximations to optimal nonlinear filters

    Publication Year: 1967, Page(s):546 - 556
    Cited by:  Papers (127)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1038 KB)

    Let the signal and noise processes be given as solutions to nonlinear stochastic differential equations. The optimal filter for the problem, derived elsewhere, is usually infinite dimensional. Several methods of obtaining possibly useful finite dimensional approximations are considered here, and some of the special problems of simulation are discussed. The numerical results indicate a number of us... View full abstract»

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  • On the error behavior in linear minimum variance estimation problems

    Publication Year: 1967, Page(s):557 - 562
    Cited by:  Papers (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    For linear systems the error covariance matrix for the unbiased, minimum variance estimate of the state does not depend upon any specific realization of the measurement sequence. Thus it can be examined to determine the expected behavior of the error in the estimate before actually using the filter in practice. In this paper, the general linear system that contains both plant and measurement noise... View full abstract»

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  • Monte Carlo evaluation of methods for pulse transfer function estimation

    Publication Year: 1967, Page(s):568 - 576
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (745 KB)

    This paper describes the results of a Monte Carlo evaluation made of the methods proposed in current literature for the estimation of the pulse transfer function of a linear, time-invariant dynamic system with feedback. Considered are two basic methods for estimating the coefficients of a pulse transfer function, given only the normal operating input and output of the system obscured by noise and ... View full abstract»

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  • A theoretical model for single-phase silicon-controlled rectifier systems

    Publication Year: 1967, Page(s):577 - 579
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    A linear model for use in determining stability, relative stability, and dynamic response of phase-angle modulated SCR systems is presented. The model is based on sampled-data control theory and assumes 1) a system bandwidth that is small relative to sampling frequency, and 2) limited excursion of the SCR triggering angle. These assumptions are justified for practical systems. The theory leads to ... View full abstract»

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  • Discrete compensation of control systems with integrated circuits

    Publication Year: 1967, Page(s):579 - 582
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    This paper combines the compensation of control systems with transient analysis and switching circuit theory to accomplish the discrete compensation of control systems. Several transfer functions are used as examples, and their realizations are discussed in detail. Lead and lag compensation are used, and several general transfer function realizations are presented for clarity. All of the realizati... View full abstract»

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  • Approximation of linear constant systems

    Publication Year: 1967, Page(s):585 - 588
    Cited by:  Papers (105)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    In this paper two problems are considered, the problem of modeling a given constant linear system by a constant linear system of fixed lower order, and the problem of finding a filter of fixed order to estimate a time-invariant random process from a related time-invariant random process. A quadratic criterion is used to select the optimum system in both cases. It is shown that the filtering proble... View full abstract»

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  • An optimum finite sequential procedure for feature selection and pattern classification

    Publication Year: 1967, Page(s):588 - 591
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (458 KB)

    In this paper a quite general formulation of sequential pattern recognition processes is presented. Within the framework of this formulation, a procedure is obtained for the simultaneous optimization of the stopping rule and the stage-by-stage ordering of features as the process proceeds. This optimization procedure is based on dynamic programming and uses as an index of performance the expected c... View full abstract»

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  • Linear estimation in the presence of errors in assumed plant dynamics

    Publication Year: 1967, Page(s):592 - 594
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (301 KB)

    This paper is concerned with certain practical aspects of linear estimation theory. Several questions, which arise during most applications of the theory, are partially answered by considering the following problem: Obtain the linear minimum variance estimate of the system x_{n+1} = (\Phi _{n+1.n} + \delta \Phi _{n+1.n})x_{n} + w_{n} View full abstract»

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  • Maximum likelihood estimation of rational transfer function parameters

    Publication Year: 1967, Page(s):594 - 597
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    The problem of estimating unknown transfer function parameters from finite input-output records which have been disturbed by additive Gaussian noise with unknown correlation is considered. A rational sampled-data model of preselected order is assumed appropriate, and following the work of Klein, Åström and Bohlin, and Mayne, the likelihood function is generated from the data by numerical... View full abstract»

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  • Input selection for parameter identification in discrete systems

    Publication Year: 1967, Page(s):597 - 599
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (325 KB)

    In this paper the problem of selecting an optimal input for identifying an unknown parameter of a known discrete system by observing its output in the presence of Gaussian noise is considered. The system is assumed to be a generalized discrete system in which the inputs and possible parameter values are members of a finite set. The criterion for the optimal input is defined as that which maximizes... View full abstract»

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  • Performance analysis of continuous, sampled, and multirate-sampled systems with random inputs

    Publication Year: 1967, Page(s):599 - 601
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (310 KB)

    The method of adjoint simulation has been widely applied to the analysis of continuous systems, using analog computers. This paper shows how the adjoint technique can be used for discrete, continuous-discrete, and multirate-discrete systems on digital computers. View full abstract»

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  • A general z-transform formula for sampled-data systems

    Publication Year: 1967, Page(s):606 - 608
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (265 KB)

    In this paper a generalized formulation for the convolution z transform is presented. The advent of this formulation could cover most of the sampled-data cases discussed in the literature. This includes nonsynchronized, cyclic rate, multirate, and nonsynchronized multirate sampling. Furthermore, the use of this formula lies in its applications to certain forms ... View full abstract»

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  • Direct and adjoint sensitivity equations for parameter optimization

    Publication Year: 1967, Page(s):609 - 610
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    First Page of the Article
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  • On the effect of incorrect gain in Kalman filter

    Publication Year: 1967, Page(s): 610
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (130 KB)

    First Page of the Article
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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