IEEE Transactions on Automatic Control

Volume 21 Issue 2 • April 1976

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Displaying Results 1 - 25 of 42
  • [Front cover and table of contents]

    Publication Year: 1976, Page(s): 0
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  • Editorial reviews and reviewers

    Publication Year: 1976, Page(s):145 - 147
    Cited by:  Papers (2)
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  • Best transactions paper award

    Publication Year: 1976, Page(s): 148
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  • An algorithm for optimization problems with functional inequality constraints

    Publication Year: 1976, Page(s):184 - 193
    Cited by:  Papers (74)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (811 KB)

    This paper presents an algorithm for minimizing an objective function subject to conventional inequality constraints as well as to inequality constraints of the functional type:max_{omega in Omega} phi(z,omega) leq 0, where Ω is a closed interval inR, andz in R^{n}is the parameter vector to be optimized. The algorithm is motivated by a standard earthquake engi... View full abstract»

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  • Comments and corrections to "Conditions for feedback transfer function matrix to be proper"

    Publication Year: 1976, Page(s): 288
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (97 KB)

    The purpose of this note is to point out the errors in the above correspondence, to restate a lemma, and to modify accordingly the proof of its main result. View full abstract»

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  • Function space null controllability by augmented delay feedback control

    Publication Year: 1976, Page(s):298 - 299
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (159 KB)

    The linear finite-dimensional systemdot{x}(t)=Ax(t) + u(t)cannot, by linear delay feedback controls of the formu(t)= sum min{i = 1}max{m}[B_{i}x(tih) + C_{i}dot{x}(t-ih)], be controlled such thatx(t) equiv 0fortlarge enough. A simple and presumably practical way is proposed of circumventing this limitation of standard delay feedback design. This method c... View full abstract»

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  • [Back cover]

    Publication Year: 1976, Page(s): 0
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  • A guaranteed prediction model for complex linear systems

    Publication Year: 1976, Page(s):259 - 263
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    The method of approximation in the norm is used to design a linear predictor for the output of a complex linear system at a given future time. It is shown that the computed output is an optimal linear transformation of some variables denoted the "most important" states of the system. The proposed method allows to obtain the system output prediction as a signal belonging to a guaranteed uncertainty... View full abstract»

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  • On vector Lyapunov functions for stochastic dynamical systems

    Publication Year: 1976, Page(s):250 - 254
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    Vector Lyapunov functions are used in the stability analysis of large-scale stochastic systems described by Itô differential equations (with stochastic disturbances in the subsystems and in the interconnecting structure). Sufficient conditions for asymptotic stability and exponential stability with probability 1 and in probability are established, in all cases the objective is the same: to an... View full abstract»

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  • Structural controllability of multiinput linear systems

    Publication Year: 1976, Page(s):203 - 212
    Cited by:  Papers (180)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (832 KB)

    This paper extends the results of Lin on structural controllability of single-input linear systems to multiinput linear systems. An interesting byproduct of this extension is an application of generic analysis to the determination of the rank of a structured matrix. The algorithm for computing generic rank is applicable to various problems other than the controllability problem studied here. View full abstract»

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  • Optimal dispatch of electric power with ambient air quality constraints

    Publication Year: 1976, Page(s):227 - 233
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    A method is given for allocating power loads for a system of electric generating units in a way which meets the time-dependent demand and minimizes the sum of the fuel cost and a penalty function for pollution. The method takes into account explicitly the dynamic nature of ambient air pollution which depends on the topography of a region and on the past performance of the system. With suitable and... View full abstract»

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  • Design of servo for gyro test table using linear optimum control theory

    Publication Year: 1976, Page(s):293 - 296
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    A control system is designed and implemented for a test table the motion of which is to track the output of a gyroscope. The process to be controlled is governed by a third-order differential equation with an important nonlinearity due to static friction. Representing the friction as an independent random walk yields a dynamic process amenable to design by methods of linear control theory. An exis... View full abstract»

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  • Fixed-interval smoothing of linear discrete systems with multiple time delays

    Publication Year: 1976, Page(s):273 - 275
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    In this correspondence, the problem of fixed-interval smoothing of linear discrete systems with multiple time delays is considered. An algorithm is developed which in certain cases is computationally more efficient than the one obtained through the state augmentation method. View full abstract»

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  • Delta sum state estimation for discrete-time dynamical models

    Publication Year: 1976, Page(s):290 - 291
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

    Optimal recursive estimates are derived for a class of non-Gaussian nonlinear systems using a discrete approximation of the probability density function of the measurement noise. View full abstract»

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  • Stochastic control in economic theory and economic systems

    Publication Year: 1976, Page(s):213 - 220
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (992 KB)

    This paper argues, by means of several examples, that system theory and stochastic control theory are useful and even essential to solve some problems in microeconomics and macroeconomics. It also briefly indicates some potential areas of applications of stochastic control theory to problems in economic theory and regulation of economics. View full abstract»

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  • Sampled data updating of continuous-time observers

    Publication Year: 1976, Page(s):272 - 273
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    The theory of continuous-time observers for linear, time-invariant systems driven by sampled data is developed with results which are applicable to the many practical systems which utilize digital data collection. View full abstract»

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  • Step motor control for maximum torque

    Publication Year: 1976, Page(s):224 - 227
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    The relationship between the switching angle and the output torque of a step motor is derived, and the optimal angle, which maximized the output torque, is found. The resulting maximum torque, which varies with the velocity, is an upper limit for the torque that can be generated by the step motor. View full abstract»

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  • Modal characterizations of controllability and observability in time delay systems

    Publication Year: 1976, Page(s):292 - 293
    Cited by:  Papers (67)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    New characterizations of controllability and observability in linear, time-invariant time delay systems are derived. An explicit criterion for stabilizability in terms of system parameters is obtained. Applications of these results are indicated. View full abstract»

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  • New adaptive algorithms in Lyapunov synthesis

    Publication Year: 1976, Page(s):246 - 249
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    The speeds of the adaptive response of Lyapunov-designed adaptive systems are related to some extent to the degree of stability of the system. A generalized quadratic Lyapunov function is constructed to allow several new adaptive algorithms to be synthesized. The new algorithms each improve the degree of stability over previously reported adaptive algorithms. A root-locus analysis substantiates th... View full abstract»

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  • Optimal linear recursive estimation with uncertain system parameters

    Publication Year: 1976, Page(s):263 - 266
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    In an estimation problem the statistics of various random processes involved may not be known exactly. Using linear state space modeling techniques, this lack of information can often be represented by allowing certain system model parameters to assume any of a finite set of possible known values with corresponding a priori known probabilities. In this short paper a recursive minimum variance esti... View full abstract»

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  • Design of near-time-optimum rotation control procedures for a spinning symmetric satellite

    Publication Year: 1976, Page(s):288 - 290
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Near-time-optimum control procedures for the rotational motion of a spinning symmetric spacecraft are obtained with the aid of the Lyapunov stability theory. It is shown in this correspondence that the near-optimum controls are simple to implement and that the performance loss can be limited by a suitable selection of system parameters. Results have been obtained for satellites with constant and v... View full abstract»

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  • Observer steady-state errors induced by errors in realization

    Publication Year: 1976, Page(s):280 - 282
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    An expression is derived for the steady-state error induced in an observer by errors in realization. A numerical example is presented which illustrates the resulting expression and which shows that relatively small errors in realization may cause a disproportionately large steady-state error. View full abstract»

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  • Economic growth in a mixed urban economy: Infrastructure investment and labor migration

    Publication Year: 1976, Page(s):221 - 224
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    The growth path of a mixed, open urban economy is considered, which is linked to the national economy through labor flows in the direction of higher per capita consumption. In the private sector, profit maximizing firms produce output, individually hiring labor but jointly using infrastructure with public good characteristics. The public sector chooses a taxation policy for dividing output into co... View full abstract»

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  • Inversion of matrix continued fraction by matrix Routh array

    Publication Year: 1976, Page(s):283 - 284
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB)

    A simplified algorithm is presented for inverting a matrix continued fraction into a matrix transfer function, in the light of the method proposed by Chao et at [1] for a single-variable system. The proposed procedure is amenable to digital computation. View full abstract»

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  • On a suboptimal control of a hospital inpatient admission system

    Publication Year: 1976, Page(s):233 - 238
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB)

    An open-loop feedback strategy is proposed for the control of the census of a hospital via the inpatient admission system. A semi-Markov population model is used to derive census forecasts. A suboptimal control is obtained by solving at each period a mixed-integer quadratic programming problem. A simulation permits a first evaluation of the proposed strategy as an admission decision rule. 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