IRE Transactions on Automatic Control

Includes the top 50 most frequently accessed documents for this publication according to the usage statistics for the month of

  • On the general theory of control systems

    Publication Year: 1959, Page(s): 110
    Cited by:  Papers (148)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (30 KB)

    This paper deals with further advances of the author's recent work on optimal design of control systems and Wiener filters. Specifically, we consider the problem of designing a system to control a plant when (1) not all state variables are measurable, (2) the measured state variables are contaminated with noise, and (3) there are random disturbances. An explicit design procedure (well adapted to d... View full abstract»

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  • Complex-curve fitting

    Publication Year: 1959, Page(s):37 - 43
    Cited by:  Papers (224)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4872 KB)

    The mathematical analysis of linear dynamic systems, based on experimental test results, often requires that the frequency response of the system be fitted by an algebraic expression. The form in which this expression is usually desired is that of a ratio of two frequency-dependent polynomials. In this paper, a method of evaluation of the polynomial coefficients is presented. It is based on the mi... View full abstract»

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  • Synthesis of an optimal set of radar track-while-scan smoothing equations

    Publication Year: 1962, Page(s):27 - 32
    Cited by:  Papers (118)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (415 KB)

    Performance measures are described which realistically reflect both noise-reduction and maneuver-following capability of a radar track-while-scan (TWS) system. Illustrations are given which compare various smoothing equations on the basis of this performance measure. Finally, a set of position-and-velocity tracking equations is synthesized by a calculus-of-variations technique. The synthesized set... View full abstract»

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  • Control system analysis and design via the second method of lyapunov: (I) continuous-time systems (II) discrete time systems

    Publication Year: 1959, Page(s): 112
    Cited by:  Papers (108)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (46 KB)

    I - Continuous-Time Systems - The "second method of Lyapunov is the most general approach currently in the theory of stability of dynamic systems. After a rigorous exposition of the fundamental concepts of this theory, applications are made to (a) stability of linear stationary, linear nonstationary, and nonlinear systems; (b) estimation of transient behavior; (c) control-system optimization; (d) ... View full abstract»

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  • Reaction wheel attitude control for space vehicles

    Publication Year: 1959, Page(s):139 - 149
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB)

    An attitude control system consisting of motor-driven inertial wheels in conjunction with an over-riding mass ejection system is proposed for use in space vehicles. Control by mass ejection is usedto compensate for initial distrubances during separation from the booster, and for removal of unwanted momentum stored in the wheels. The use of reaction wheels permits fine, damped attitude control. A l... View full abstract»

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  • A general performance index for analytical design of control systems

    Publication Year: 1961, Page(s):217 - 222
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    A generally applicable performance index for linear feedback systems is proposed. This performance index enables one to specify a desired (ideal) response towards which the system is optimized. The response of any unity-numerator system can be chosen as the ideal response. The coefficients of the performance index are determined from the specified ideal response, and the procedure of optimization ... View full abstract»

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  • A survey of adaptive control systems

    Publication Year: 1958, Page(s):102 - 108
    Cited by:  Papers (53)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    The various criteria upon which self-optimizing systems have been based are reviewed, and the operation of each type of system is discussed. A new system which is self-optimizing with respect to a measure of impulse response is described, and experimental results are presented. View full abstract»

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  • Input-output analysis of multirate feedback systems

    Publication Year: 1957, Page(s):21 - 28
    Cited by:  Papers (204)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    A general analytical technique described in this paper permits the extension ofZ-transform methods to sampled-data systems containing synchronized switches which do not operate with the same sampling rate. Sampling periods of each switch are first expressed in the formT/p_{1} ... T/p_{n}(wherep_{1} ... p_{n}are integers not equal to zero) and then it is shown that ... View full abstract»

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  • On adaptive control processes

    Publication Year: 1958, Page(s):1 - 9
    Cited by:  Papers (60)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    One of the most challenging areas in the field of automatic control is the design of automatic control devices that 'learn' to improve their performamce based upon experience, i.e., that can adapt themselves to circumstances as they find them. The military and commercial implications of such devices are impressive, and interest in the two main areas of research in the field of control, the USA and... View full abstract»

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  • A parameter-perturbation adaptive control system

    Publication Year: 1961, Page(s):154 - 162
    Cited by:  Papers (18)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (800 KB)

    Theoretical and simulation studies of a parameter-perturbation self-adaptive system are discussed. A number of system block diagrams are included, showing diverse applications of parameter-perturbation adaptive techniques. A particular study has been made using error signals based on an ideal model, and the concept of high-frequency perturbation of the model has been introduced. A linearized mathe... View full abstract»

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  • Short-time stability

    Publication Year: 1961, Page(s): 86
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (399 KB)

    The concept of stability plays a dominant role in control svsterns, However, the classical definitions-ior example, A linear varying-parameter system is defined to be stable if and only if every bounded input produces a bounded output v-r-suffer from some important shortcomings. One of them is that knowing that an output will be bounded is generally not sufficient. The exact value of the bound mus... View full abstract»

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  • Adaptive servo tracking

    Publication Year: 1961, Page(s):167 - 172
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    This paper describes a self-adaptive sampled-data radar tracking loop. The adaptive tracking loop may be considered to be a low-pass filter with a variable bandwidth. The loop is designed to adapt rapidly to changes in the input signal by monitoring both the apparent error and the loop output. Results show a mean tracking accuracy 25 to 34 per cent higher than that of a comparable linear system at... View full abstract»

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  • Fundamental equations for the application of statistical techniques to feedback-control systems

    Publication Year: 1957, Page(s):56 - 78
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1248 KB)

    The basic equations necessary for applying statistical techniques to the design of feedback-control systems are presented. The autocorrelation function of the output is computed by a transient technique which treats the input autocorrelation function as a transient input to the system. By transforming this procedure equations are developed for relating the spectral densities of the input and outpu... View full abstract»

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  • On a property of optimal controllers with boundedness constraints

    Publication Year: 1961, Page(s):98 - 110
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1000 KB)

    This paper deals with a theory for optimal control systems designed to operate a plant of known characteristics. It is assumed that error-free measurement of the system input and the system behavior is permitted, but only limited changes in the system characteristics can be effected by the control variables at the designer's disposal. It is shown that within this limitation for a wide class of inp... View full abstract»

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  • Stability and convergence properties of model-reference adaptive control systems

    Publication Year: 1962, Page(s):30 - 41
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1096 KB)

    An approach to adaptive control system design which does not involve a direct measurement or identification of the variable process parameters is investigated. Convergence-time relationships and sufficient conditions for system stability are developed when the process is characterized by a variable gain or variable time-constant, and fixed dynamics of any order. The adaptive capability is achieved... View full abstract»

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  • Analysis and synthesis of dynamic performance of industrial organizations--The application of feedback control techniques to organizational systems

    Publication Year: 1962, Page(s):55 - 67
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1072 KB)

    In this paper a method is described for evaluating the dynamic performance of the operation of an organization. It is shown that the performance response of past efforts can be expressed mathematically by means of performance operators leading to the development of a mathematical model of the process of industrial operations. This paper considers the operation of an engineering organization as a d... View full abstract»

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  • Integral transforms for a class of time-varying linear systems

    Publication Year: 1961, Page(s):311 - 318
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    This paper presents an extension of the transform method to systems having parameters which vary with time. By using the general λ domain approach suggested by Zadeh for the analysis and synthesis of linear time-varying systems, a system functionH(lambda)independent of time may be defined for the linear system. Such a system function has many of the advantages of that obtained for ... View full abstract»

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  • s-plane design of compensators for feedback systems

    Publication Year: 1961, Page(s):333 - 340
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (593 KB)

    The poles and zeros of a compensator affect thes-plane gain and phase of the open-loop system at every point in thes-plane. These effects are studied for open-loop poles and zeros on the negative real axis, and a family of curves summarizes the results. A design technique is developed which permits compensation design to satisfy simultaneous specifications of root location an... View full abstract»

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  • The analysis of sampled-data control systems with a periodically time-varying sampling rate

    Publication Year: 1959, Page(s):15 - 21
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6201 KB)

    The z-transform is used to solve sampled-data systems which have a periodically time-varying sampling rate, i.e., systems which have a repetitive sampling pattern in which the time duration between the individual samples is not constant. Such systems are described by linear difference equations with periodic coefficients; however, the difference equation which describes the system at sampling inst... View full abstract»

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  • Stability of servomechanisms with friction and stiction in the output element

    Publication Year: 1961, Page(s):222 - 227
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (454 KB)

    Servomechanisms with friction in the output element are often observed to oscillate, even though the Bode diagram indicates stability. This paper investigates the conditions for this instability and the type of oscillation that can occur. It finds that an overdamped system with a lag equalizer is stable ifL<2 C/C-1, whereLis the lag ratio andC=static friction... View full abstract»

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  • Transfer-function tracking and adaptive control systems

    Publication Year: 1961, Page(s):162 - 166
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (375 KB)

    This paper describes a system for determining the parameters of a transfer function of the form: a constant divided by a polynomial in the Laplacian variables. The system is described in detail for a polynomial of second order, but may be extended to polynomials of any order. The system may be realized in terms of ordinary analog computer components. It presents the information in a for... View full abstract»

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  • Feedback system testing

    Publication Year: 1958, Page(s):79 - 88
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (888 KB)

    An analog method of servo system performance testing applicable to experimental analysis and system development and to go-no-go production and maintenance tesfiug has been devised. For a servo system with a forward transfer function Geoand a feedback transfer function Gouthe loop actuating signal equals the loop input signal divided by1+G_{eo}G_{ou}. The loop actua... View full abstract»

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  • Fundamental theory of automatic linear feedback control systems

    Publication Year: 1959, Page(s):5 - 19
    Cited by:  Papers (42)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (912 KB)

    The reasons for using feedback are reviewed. The beneficial aspects of feedback are quantitatively expressed in sensitivity functions and noise transmission functions. The physical constraints on the controlled process (or plant) determine the maximum number of independent functions realizable. Any configuration with the same number of degrees of freedom may be used. With this approach the study o... View full abstract»

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  • On the analysis of bi-stable control systems

    Publication Year: 1959, Page(s):46 - 58
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    The basic theory of bi-stable oscillating loop control is first sumaarized using standard describing function concepts. The effective transfer characteristic of the hi-stable switch is defined in terms of the ratio of both amplitude and frequency of the control error signal to amplitude and frequency of the loop oscillation signal. The effect of variation in loop oscillation amplitude with low fre... View full abstract»

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  • Root locus properties and sensitivity relations in control systems

    Publication Year: 1960, Page(s):57 - 65
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7263 KB)

    The differential properties of root loci including pole sensitivity, angle of slope, and curvature at ordinary and irregular points are investigated in a unified manner. A relation between the sensitivity function and pole sensitivity is established. The sensitivity is shown to determine variations in the transfer function due to large (not only infinitesimal) variations in K. Additional propertie... View full abstract»

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  • Self-optimization of a control system by means of a logic circuit

    Publication Year: 1961, Page(s):260 - 266
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    The self-optimization of a control system has been tried by means of a logic circuit. The device makes successive trials by giving values of a parameter to the system and, on the basis of the resulting successive observations of the mean-square error, finally finds the value of the parameter giving the minimum error. The device is also able to follow the change of the system conditions to keep the... View full abstract»

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  • Time-optimal control of higher-order systems

    Publication Year: 1961, Page(s):16 - 21
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4725 KB)

    Practical extension of time-optimal control to systems of higher order than three has been limited primarily by difficulties in physically representing surfaces in a phase space of these higher dimensions. A method is presented here for obtaining the forcing function as a function of the state variables without requiring use of the phase space concept. On line solution of a set of transcendental e... View full abstract»

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  • Guidance theory and extremal fields

    Publication Year: 1962, Page(s):75 - 82
    Cited by:  Papers (66)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    A guidance concept employing properties of optimal flight paths is developed on the basis of Jacobi's accessory minimum problem for the second variation. The analysis is equivalent to construction of a field of extremals in the neighborhood of a predetermined extremal serving as a "nominal" trajectory. In the absence of inequality constraints on the control variables, a linear terminal control sch... View full abstract»

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  • Theory and design of high-order bang-bang control systems

    Publication Year: 1961, Page(s):125 - 134
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (766 KB)

    In this paper the nonlinear equations which describe the switching hypersurface of anNth-order linear time-invariant system, with real negative distinct poles, are developed when the input to the system is restricted in amplitude, either intentionally through the use of a relay or due to saturation of the power element. Based on the equations of the switching hypersurfaces, a design pro... View full abstract»

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  • A modified Lyapunov method for nonlinear stability analysis

    Publication Year: 1961, Page(s):199 - 210
    Cited by:  Papers (33)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (984 KB)

    A modification of the original Lyapunov stability criterion is given, which includes intermediate conditions of stability, as well as "stability in the small" and "stability in the large." A means is developed for applydng it to practical control problems that eliminates much of the guesswork usually required with Lyapunov methods of investigation. The process is based upon an integration of matri... View full abstract»

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  • Dynamic programming and adaptive processes: Mathematical foundation

    Publication Year: 1960, Page(s):5 - 10
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6173 KB)

    In many engineering, economic, biological, and statistical control processes, a decision-making device is called upon to perform tinder various conditions of uncertainty regarding underlying physical processes. These conditions range from complete knowledge to total ignorance. As the process unfolds, additional information may become available to the controlling element, which then has the possibi... View full abstract»

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  • Stability and graphical analysis of first-order pulse-width-modulated sampled-data regulator systems

    Publication Year: 1961, Page(s):276 - 282
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    Pulse-width-modulated sampled-data systems are described by nonlinear difference equations which do not lend themselves to an exact analytic treatment. This paper presents a graphical technique for the analysis of PWM sampled-data systems with first-order plants. This technique provides a sufficient condition for asymptotic stability in the large, a method for examining the damping properties of t... View full abstract»

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  • Dynamic programming approach to a final-value control system with a random variable having an unknown distribution function

    Publication Year: 1960, Page(s):270 - 283
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1160 KB)

    As described in the introduction of this paper, the state vector xn, representing the present state of a sampling control system, is assumed to satisfy a difference equationx_{n+1} = T(x_{n}, r_{n}, upsilon_{n}), whereupsilon_{n}is the control vector of the system subject to random disturbances rn. The random variables rnare assumed to be inde... View full abstract»

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  • Stability and control of nuclear rocket propulsion

    Publication Year: 1962, Page(s):86 - 96
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    A systems treatment of the dynamic behavior of nuclear rocket propulsion systems is presented. This simplified analysis does represent the basic ideas of more detailed computer studies. Nuclear reactor systems for space propulsion are much faster than conventional reactor systems which complicates the controls problem. (The dynamics of chemical systems have been simpler in nature due to their spee... View full abstract»

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  • Russian contributions to control theory

    Publication Year: 1961, Page(s): 349
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (152 KB)

    First Page of the Article
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  • General approach to control theory based on the methods of Lyapunov

    Publication Year: 1959, Page(s): 20
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (25 KB)

    This discussion is an introduction to the second method of Lyapunov in determining the stability of linear and nonlinear control systems. Although almost universally referred to in Russia and although it is becoming an increasingly important concept, this method has not been used in English-speaking countries because of the lack of suitable translations. This introduction to the method will not be... View full abstract»

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  • A parameter tracking servo for adaptive control systems

    Publication Year: 1959, Page(s):100 - 111
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    This paper describes one very general approach to the design of adaptive control systems. The particular systems considered are process adaptive. The dynamic characteristics of the physical process are determined by the parameter tracking servo. The parameters thus determined are used to program the process' controller. The parameter tracking servo is a closed loop self-adjusting system. It consis... View full abstract»

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  • Adaptive sampling frequency for sampled-data control systems

    Publication Year: 1962, Page(s):38 - 47
    Cited by:  Papers (53)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (888 KB)

    Sampled-data control systems generally have fixed sampling frequencies which must be set high enough to give satisfactory performance for all anticipated conditions. A study is made here of an adaptive system which varies the sampling frequency by measuring a system parameter. It is shown that a sampler followed by a zero-order hold whose sampling period is controlled by the absolute value of the ... View full abstract»

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  • Signal stabilization of self-oscillating systems

    Publication Year: 1961, Page(s):319 - 325
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    The hunt (self-oscillations) of a physical system may often be removed by the introduction of an appropriate stabilizing signal which changes the open loop gain in a nonlinear manner. More generally, the performance of nonlinear systems in many cases may be improved by the introduction of extra signals. The theory of signal stabilization developed here extends the earlier work by Oldenburger and L... View full abstract»

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  • Notes on the stability criterion for linear discrete systems

    Publication Year: 1961, Page(s):88 - 90
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2432 KB)

    It is known that linear time-invariant discrete systems can be described by constant coefficient linear difference equations. One of the problems in the analysis of such systems is the test for stability. These tests involve both graphical procedures such as Nyquist locus, Bode diagrams and the root-locus, and analytical methods such as Schur-Cohn1 or Routh-Hurwitz criteria. Because of ... View full abstract»

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  • Terminal control system applications

    Publication Year: 1961, Page(s):142 - 153
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (904 KB)

    This paper describes a synthesis procedure for terminal control systems. The synthesis procedure is illustrated by application to the design of an aircraft automatic landing system. A simplified model for the landing aircraft is chosen and justified. The prediction equations for this model are discussed. Using the prediction equations, a two-condition terminal controller, which controls the altitu... View full abstract»

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  • D-decomposition analysis of automatic control systems

    Publication Year: 1959, Page(s):150 - 171
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1224 KB)

    Development of the basic theory of D-decomposition by a general polynomial expression, the characteristic function of a linear lumped parameter automatic control system, is followed by account of: the basic theory of parametric stability; unity-feedback variable-gain analysis, with subsequent generalization to numeric and frequency-dependent feedback; transient response determination; and sampled-... View full abstract»

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  • Analog study of dead-beat posicast control

    Publication Year: 1958, Page(s):14 - 21
    Cited by:  Papers (63)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    A method is presented which eliminates the oscillations and overshoot in a lightly damped servomechanism in a time of considerably less than one cycle of the uncompensated oscillation. The frequency response of a resonant system compensated in this manner can be made flat up through and beyond the resonant frequency of the system. For dead-beat response in one-half period, the frequency response i... View full abstract»

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  • On adaptive control systems

    Publication Year: 1959, Page(s):30 - 42
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    An attempt is made in the subject paper to evolve a basic philosophy for adaptive control systems. A method is described for determining the system impulse response from measurements of instantaneous system input and output. The impulse response is expanded in a Taylor series, to facilitate solution of the convolution integral. From a knowledge of the impulse response and the system error, the nec... View full abstract»

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  • Transportation lag — An annotated bibliography

    Publication Year: 1959, Page(s):56 - 64
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (13975 KB)

    This bibliography is an attempt to survey the writings, in various fields of study, which deal with functions with retarded argument. This problem is characterized by a response to a stimulus which is identical to a normal response except that it is delayed in time. Some situations in which this transportation lag occurs include process control (distance-velocity lag), control of thermal systems (... View full abstract»

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  • A survey of techniques for the analysis of sampled-data control systems

    Publication Year: 1957, Page(s):79 - 90
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    The present use in control systems of pulsed-data links, track-while-scan radar, digital computers, and many other intermittently operative devices has stimulated interest in the analysis of sampled-data control systems. The tremendous effort now being expended to develop the techniques for analyzing such systems has resulted in the proposal of several methods of analysis. This paper presents an u... View full abstract»

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  • The analysis of cross-coupling effects on the stability of two-dimensional, orthogonal, feedback control systems

    Publication Year: 1960, Page(s):314 - 320
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (467 KB)

    The analysis of two-dimensional cross-coupled feedback control systems is studied because many such systems are in existence, and methods for their analysis and criteria for measuring their performance have had only limited attention in the technical literature [1]-[6]. Previous literature has generally been in the area of matrix analysis of multidimensional or multiloop systems, and has not treat... View full abstract»

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  • Optimization based on a square-error criterion with an arbitrary weighting function

    Publication Year: 1960, Page(s):24 - 30
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5256 KB)

    Several important criteria for the performance of communication systems and control systems are reviewed, and a new criterion (the mean-weighted-square-error criterion) is then introtroduced. This is shown to be a special form of a very general criterion proposed earlier, but to have special significance in that it is a generalization of the familiar mean-square-error criterion. The minimization o... View full abstract»

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  • Design of multiple-loop feedback control systems

    Publication Year: 1962, Page(s):47 - 57
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (984 KB)

    A single-loop design is basic for a two-degree-of-freedom plant, and it is theoretically able to achieve any desired insensitivity to plant variations or rejection of disturbances, if the plant is minimum-phase. In exacting feedback problems where the parameter variations or disturbances are large, the resulting single-loop transmission may require a larger gain and bandwidth than that of the plan... View full abstract»

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  • An adaptive artificial hand

    Publication Year: 1962, Page(s):3 - 10
    Cited by:  Papers (56)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (800 KB)

    A review of the basic approaches to the artificial hand design is given. The importance of new ideas in this field using progress in automatic control theory is stressed. The most importemt feature of the new hand is the two level control. The movements of the hand can be controlled by signals produced by man as well as by external stimuli. For this purpose simple pressure sensitive transducers ar... View full abstract»

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Aims & Scope

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The latest title for this publication is IEEE Transactions on Automatic Control.

 

This Transactions ceased publication in 1958. The current retitled publication is IEEE Transactions on Automatic Control.

Full Aims & Scope