By Topic

Automatic Control, IRE Transactions on

Issue 1 • Date Feb. 1961

Filter Results

Displaying Results 1 - 23 of 23
  • Table of contents

    Publication Year: 1961 , Page(s): 1 - 2
    Save to Project icon | Request Permissions | PDF file iconPDF (895 KB)  
    Freely Available from IEEE
  • Message from Moscow

    Publication Year: 1961 , Page(s): 1 - 2
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1595 KB)  

    In mid-summer of 1960, from June 27 to July 7, the first International Congress of Automatic Control was held in Moscow at the Moscow State University. There were about 1100 delegates from all over the world, and they came to hear 285 papers concerning control theory, applications, and components as well as to visit various industries and institutes and to meet the Russian scientists and the Russi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • PGAG Chairman's message

    Publication Year: 1961 , Page(s): 3
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (277 KB)  

    The Professional Group on Automatic Control is coming into its own. The ardent work of many an individual both in the national and chapter organizations has borne gratifying, if not remarkable, fruit over the past six years. We have come a long way over a rather short time, as many important achievements can testify. View full abstract»

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

    Publication Year: 1961 , Page(s): 4
    Save to Project icon | Request Permissions | PDF file iconPDF (304 KB)  
    Freely Available from IEEE
  • An optimal strategy for a saturating sampled-data system

    Publication Year: 1961 , Page(s): 5 - 15
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (8934 KB)  

    Consider the usual sampled-data control system in which the sampler is followed by a zero-order hold and the transfer function is G(s) = 1/s(s+a). Saturation is represented by the fact that the forcing function applied to G(s) may not be larger than 1 in absolute value. The problem is to determine a saturating zero-order hold forcing function which forces the system from an arbitrary... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Time-optimal control of higher-order systems

    Publication Year: 1961 , Page(s): 16 - 21
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Control system performance measures: Past, present, and future

    Publication Year: 1961 , Page(s): 22 - 35
    Cited by:  Papers (15)
    Save to Project icon | Request Permissions | PDF file iconPDF (14333 KB)  
    Freely Available from IEEE
  • A simulator study of a two-parameter adaptive system

    Publication Year: 1961 , Page(s): 35 - 42
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (7661 KB)  

    The use of sinusoidal parameter perturbation applied to a feedback control system to obtain an adaptive scheme which optimizes the system for changes in inputs and/or system parameters is discussed. It is shown that if a parameter perturbation signal is cross-correlated with the system error squared, the correlator output can be used to adjust the parameter to minimize the mean-square error. Other... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimum prediction with a mean weighted square error criterion

    Publication Year: 1961 , Page(s): 43 - 48
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4852 KB)  

    The linear prediction theory is examined using a mean weighted square error criterion. A specific nondeterministic weighting function is used. The problem is reduced to that of solving integral equations which are written in terms of correlation functions which can be calculated by averaging over the ensemble. A complete solution is given for the problem using Gaussian statistics with no correlati... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Control systems with minimum spectral bandwidth of plant input

    Publication Year: 1961 , Page(s): 49 - 53
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3243 KB)  

    A design method for control systems that minimizes the spectral bandwidth of the plant input signal is discussed. The plant input signal is minimized subject to the constraint that the integral square error for deterministic inputs or the mean square error for random inputs be limited to a known desired value. The control system transfer function that satisfies these requirements is derived, and t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A network theory for carrier-suppressed modulated systems

    Publication Year: 1961 , Page(s): 54 - 66
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (11445 KB)  

    The performance of linear networks in the presence of carrier-suppressed modulation is re-examined in the light of the latest advances in theory. Both analysis and synthesis methods are presented. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design aspects of attitude control systems

    Publication Year: 1961 , Page(s): 67 - 73
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (6810 KB)  

    Figures of merit, besides those of performance, are discussed relative to the attitude control system of a vehicle capable of leaving and returning to the atmosphere. In addition to extreme changes in flight condition, these applications are subject to variations in configuration and performance requirements. Traditionally, control optimization has been concerned with minimizing or maximizing a va... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis and design of feedback systems with gain and time constant variations

    Publication Year: 1961 , Page(s): 73 - 79
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (5078 KB)  

    The design of a feedback control system containing an element with proportional variation of gain and time constant is a common problem encountered by control engineers in practice. The problem includes the stabilization of a system, which is open-loop unstable when both the gain and the time constant of the element are negative. This paper presents a method for analyzing the transient response of... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Evaluation of transient response coefficients

    Publication Year: 1961 , Page(s): 80 - 83
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1999 KB)  

    A method is presented for evaluating the transient response coefficients of response functions having poles of any multiplicity. The calculations are effected by use of a recursion-type formula with data obtained from distance and angle measurements on the root-locus plot of the system being analyzed. View full abstract»

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

    Publication Year: 1961 , Page(s): 83
    Save to Project icon | Request Permissions | PDF file iconPDF (305 KB)  
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Discussion of “on adaptive control systems”

    Publication Year: 1961 , Page(s): 84 - 85
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1603 KB)  

    The system described by Braun1 is similar in philosophy to the system described by Mishkin and Haddad.2 In the latter, an attempt was made to drive the error and its derivatives approximately to zero by the end of each control interval. In the system of Braun, it appears the error and its derivatives are to go instantly to zero at the start of each control interval and to rem... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Two digital computer programs for use with multirate sampled-data system analysis

    Publication Year: 1961 , Page(s): 85 - 86
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1846 KB)  

    Two digital computer programs were written last year at North American Aviation, Inc., in connection with the analysis of multirate sampled-data systems, which might be of interest to people engaged in similar analysis work. The systems under consideration were more or less like the block diagram of Fig. 1. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Short-time stability

    Publication Year: 1961 , Page(s): 86
    Save to Project icon | Request Permissions | 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Sampling schemes in sampled-data control systems

    Publication Year: 1961 , Page(s): 86 - 88
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2641 KB)  

    In the early development of the sampled-data field, it was assumed that the sampling pattern is periodic with fixed period T, that the pulse width is of negligible duration, and that these short pulses are represented by impulses. Based on this representation, several analysis methods were developed, among them the s-transform method [1]–[3], the difference equation [4]–[6], and the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Notes on the stability criterion for linear discrete systems

    Publication Year: 1961 , Page(s): 88 - 90
    Save to Project icon | Request Permissions | 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Information on translations of russian technical journals

    Publication Year: 1961 , Page(s): 91
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (326 KB)  

    During a discussion of the IFAC Moscow Congress at the JACC meeting in Boston, it was mentioned that the Russians knew more about control work in the Cnited States than Americans know about similar work in the CSSR because they have excellent translation facilities which are not available to engineers in America. However, Nathan Cohn, representing the Instrument Society of America (ISA) announced ... View full abstract»

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

    Publication Year: 1961 , Page(s): 92
    Save to Project icon | Request Permissions | PDF file iconPDF (241 KB)  
    Freely Available from IEEE
  • Contributors

    Publication Year: 1961 , Page(s): 93 - 94
    Save to Project icon | Request Permissions | PDF file iconPDF (1682 KB)  
    Freely Available from IEEE

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