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Date 15-17 June 1988

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Displaying Results 1 - 25 of 475
  • Proceedings of the 1988 American Control Conference

    Publication Year: 1988 , Page(s): 1
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    Freely Available from IEEE
  • Foreword

    Publication Year: 1988 , Page(s): 2
    Request Permissions | PDF file iconPDF (73 KB)  
    Freely Available from IEEE
  • Dedication: Professor Henry J. Kelley

    Publication Year: 1988
    PDF file iconPDF (82 KB)  
    Freely Available from IEEE
  • AACC Awards

    Publication Year: 1988 , Page(s): 4 - 6
    PDF file iconPDF (249 KB)  
    Freely Available from IEEE
  • Operating Committee

    Publication Year: 1988 , Page(s): 7
    PDF file iconPDF (58 KB)  
    Freely Available from IEEE
  • Program Committee

    Publication Year: 1988 , Page(s): 7
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    Freely Available from IEEE
  • Program

    Publication Year: 1988 , Page(s): 8 - 33
    PDF file iconPDF (1636 KB)  
    Freely Available from IEEE
  • Hierarchical Expert System for Process Control

    Publication Year: 1988 , Page(s): 1 - 6
    Cited by:  Patents (1)
    Click to expandAbstract | PDF file iconPDF (338 KB)  

    The paper presents the design and implementation of a hierarchical structure embedding a complex family of experts for process control. Each member of the expert system solves one of the control problems: from operator assistance to control algorithms synthesis. At the first level the structure of the system integrates four classes of experts. In each class a pyramidal organization of experts esta... View full abstract»

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  • Advantages of the Modern Approach to the Simulation of Linear Dynamic Systems

    Publication Year: 1988 , Page(s): 7 - 9
    Click to expandAbstract | PDF file iconPDF (220 KB)  

    Digital synthesis of continuous systems via classical Z-transformation method is compared with its modern state space based counterpart, which is an equivalent sample data discrete system. View full abstract»

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  • New Concept for a Flexible Simulation System

    Publication Year: 1988 , Page(s): 10 - 15
    Click to expandAbstract | PDF file iconPDF (338 KB)  

    First Page of the Article
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  • Optimal q-Markov Cover for Finite Precision Implementation

    Publication Year: 1988 , Page(s): 16 - 21
    Cited by:  Papers (2)
    Click to expandAbstract | PDF file iconPDF (445 KB)  

    The existing q-Markov COVER realization theory does not take into account the problems of arithmetic errors due to both the quantization of states and coefficients of the reduced order model. All q-Markov COVERs allow some freedom in the choice of parameters. In this paper we exploit this freedom in the existing theory to optimize the models with respect to these finite wordlength effects. View full abstract»

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  • A Fast Algorithm for Computing Interval Rational Functions

    Publication Year: 1988 , Page(s): 22 - 23
    Cited by:  Papers (4)
    Click to expandAbstract | PDF file iconPDF (159 KB)  

    An algorithm for fast computation of interval rational functions is described. View full abstract»

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  • On the Robustness of MEOP Design versus Asymptotic LQG Synthesis

    Publication Year: 1988 , Page(s): 24 - 29
    Click to expandAbstract | PDF file iconPDF (464 KB)  

    Recently, various LQG design schemes have evolved to improve the robustness of an uncertain plant. In this paper, a SISO example system is used to compare parameter robustification capabilities of the Maximum Entropy robustified compensator design with 1) the Linear Quadratic Gaussian with Loop Transfer Recovery design technique, and 2) the Parameter Robust Linear Quadratic Gaussian synthesis meth... View full abstract»

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  • The Design of Gain-Constrained Linear Feedback Controllers

    Publication Year: 1988 , Page(s): 30 - 35
    Click to expandAbstract | PDF file iconPDF (356 KB)  

    A linear observer-controller is developed to implement regulation of a linear system where a priori constraints are specified on the controller and observer gain matrices. The compensator's gain matrices are generated through the solution of matrix differential equations. Conditions are developed to examine whether or not a regulation accuracy specification can be met with a class of constant gain... View full abstract»

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  • Mathematical Theory of Optimal Processes for Singular Systems

    Publication Year: 1988 , Page(s): 36 - 40
    Cited by:  Papers (2)
    Click to expandAbstract | PDF file iconPDF (351 KB)  

    Singular systems of the form E¿ = f(x, u, t) are considered tractability is defined, a sufficient condition for tractability is derived, the maximum principle for optimal control problem is obtained, the properties of the Hamilton function and the forms of the functional are discussed, and two examples are given. View full abstract»

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  • On the Controllability and Observability of Hybrid Systems

    Publication Year: 1988 , Page(s): 41 - 46
    Cited by:  Papers (5)
    Click to expandAbstract | PDF file iconPDF (418 KB)  

    This paper considers a special class of hybrid systems, whose state space is a cross-product space of an Euclidean space and a finite-state space. Such models may be used to represent systems subject to known abrupt parameter variations, such as commutated networks. They may also be used to approximate some types of time-varying systems. The paper investigates controllability, observability, and s... View full abstract»

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  • A Unification of System Transformations

    Publication Year: 1988 , Page(s): 47 - 48
    Cited by:  Papers (1)
    Click to expandAbstract | PDF file iconPDF (195 KB)  

    Strong system equivalence, proposed by Anderson, Coppel and Cullen [5], [6], and full system equivalence, proposed by Hayton, Walker and Pugh [7], [8], are transformations of general polynomial system matrices which preserve the finite and infinite poles and zeros and the transfer functions of the systems they relate. This paper shows that they are different characterisations of the same relations... View full abstract»

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  • Linear Periodic Systems : Time-Invariant Equivalents

    Publication Year: 1988 , Page(s): 49 - 50
    Click to expandAbstract | PDF file iconPDF (150 KB)  

    In this paper, the possible time invariant system equivalents to periodic ones, either in continuous-time or discretized form are considered. First, the well known Floquet-Lyapunov theorem and his application is summarized. The relation between continuos-time and discretized models allow us to propose an algorithm for the computation of time-invariant equivalents to any linear continuous time peri... View full abstract»

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  • Stability and State Feedback Control of Differential Unit Memory Linear Multipass Processes

    Publication Year: 1988 , Page(s): 51 - 52
    Click to expandAbstract | PDF file iconPDF (130 KB)  

    A state feedback control law for a class of linear dynamic systems termed differential unit memory linear multipass processes is defined. Further, the design of this law for closed-loop stability is considered. In particular, a recently developed computationally feasible stability test is used to present some preliminary work on this problem. View full abstract»

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  • Application of the Inverse LQ Design Method to the Nonzero Set Point Regulator Design

    Publication Year: 1988 , Page(s): 53 - 54
    Click to expandAbstract | PDF file iconPDF (153 KB)  

    A new LQ design method developed recently by the author, called "the Inverse LQ design method" is applied to the design of an LQ regulator with a constant set point. A very simple way of choosing the design parameters so as to achieve a desired transient response of the regulator is proproposed, and an explicit expression of the resulting optimal state feedback gain is given in terms of the select... View full abstract»

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  • Boresight Disturbance Modeling of a Space-Based Electromagnetic Rail Gun

    Publication Year: 1988 , Page(s): 55 - 60
    Click to expandAbstract | PDF file iconPDF (367 KB)  

    Boresight disturbances during the operation of an electromagnetic rail gun considered herein arise from the coupling of the structural dynamics of the conducting rails with the electrodynamics of the plasma and rail currents. A simplified model of a rail gun is used here to size these effects on pointing accuracy, for purposes of fire control. View full abstract»

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  • The Jitter Beam: An Experiment Demonstrating Pointing Control on a Flexible Structure

    Publication Year: 1988 , Page(s): 61 - 68
    Click to expandAbstract | PDF file iconPDF (601 KB)  

    The problem of control/structural interaction arises in ground and space systems where flexibility limits performance. In this paper, an experiment called the "jitter beam" simulates the interaction of a pointing control system and a flexible structure. Noncolocation of a sensor and an actuator makes control difficult. A Linear Quadratic Gaussian (LQG) design overcomes the noncolocation problem by... View full abstract»

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  • Payload Adaptation of A Flexible One-link Manipulator

    Publication Year: 1988 , Page(s): 69 - 73
    Click to expandAbstract | PDF file iconPDF (428 KB)  

    The payload adaptability of a light-weight flexible manipulator is studied. Using the FEM (Finite-Element Method) model of a flexible manipulator, a lower order compensator can be accomplished. The simulation results have shown that the proposed payload-adaptation synthesizer, which synthesizes a payload identifier and a nominal regulator/estimator interpolator to obtain a near-optimal compensator... View full abstract»

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  • Near-Minimum-Time Control of a Flexible One-Link Robot

    Publication Year: 1988 , Page(s): 74 - 82
    Click to expandAbstract | PDF file iconPDF (492 KB)  

    In this paper, a digital algorithm is developed to obtain a feedforward function which not only yields near-minimum-time trajectory but also damps out vibration in the controlled modes of a flexible one-link robot. The results from numerical simulations are presented for links with two different sets of parameters. It is found that the `move-time' for this algorithm is close to that for the time-o... View full abstract»

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  • Unconstrained and Constrained Mode Expansions for a Flexible Slewing Link

    Publication Year: 1988 , Page(s): 83 - 88
    Click to expandAbstract | PDF file iconPDF (414 KB)  

    The linear equations of motion of a uniform flexible slewing link which were derived via Hamilton's Extended Principle are considered. These equations account for the coupling between bending and rigid modes. Unconstrained and constrained mode expansions are investigated and a quantitative comparison is made between the frequency equations and associated mode shapes. A finite dimensional model is ... View full abstract»

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