By Topic

IEEE Symposium on Computer-Aided Control System Design

17-19 March 1992

Filter Results

Displaying Results 1 - 25 of 44
  • 1992 IEEE Symposium on Computer-Aided Control System Design (CACSD) (Cat. No.92TH0443-2)

    Publication Year: 1992
    Request permission for commercial reuse | PDF file iconPDF (1347 KB)
    Freely Available from IEEE
  • A matrix and expert system development aid language

    Publication Year: 1992, Page(s):148 - 155
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (607 KB)

    An effort has been made to extend the matrix-oriented MATLAB syntax so that a generic expert system development environment can be incorporated into the control environment. Knowledge constructs such as rules and facts could then be handled by the language parser. The aim is to provide an integrated environment for coupling numeric and symbolic processing. A control system design package that can ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A new technique for solving high-index differential-algebraic equations using dummy derivatives

    Publication Year: 1992, Page(s):218 - 224
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    A technique for solving high-index problems by combining symbolic and numerical methods is presented. The technique is a variant of index reduction. In the usual manner, parts of the differential-algebraic equation (DAE) are differentiated analytically and appended to the original system. For each additional equation, a derivative is selected to be replaced by a new algebraic variable called a dum... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Discrete event modelling and simulation in Omola

    Publication Year: 1992, Page(s):262 - 268
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    The author describes how discrete event and combined discrete event and continuous-time models are represented in Omola, an object-oriented, equation-based language for representing structured dynamic models. Discrete event behavior is represented by events with state conditions. Events can also be scheduled. The main formalism for representing discrete behavior is difference equations, which are ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Object-oriented chemical process modeling in Omola

    Publication Year: 1992, Page(s):165 - 172
    Cited by:  Papers (3)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    An object-oriented approach to modeling chemical processes with control systems in the modeling language Omola is discussed. The basic elements in this modeling methodology are modularization, model encapsulation, hierarchical decomposition, parameterization and inheritance. Models have an internal structure of model components, like terminals, parameters and behavior descriptions. The model behav... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Blockm-a block diagram modelling interface and its applications

    Publication Year: 1992, Page(s):242 - 249
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    A MATLAB-based menu-driven multi-input multi-output linear system block diagram modeling program called BLOCKM is presented. This program can be used very easily to enter complicated models described in block diagram form. The state-space representation of the system can then easily be found and processed in the MATLAB environment. The F-14 benchmark problem is used as an example to show the block... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The evolution of CACSD tools-a software engineering perspective

    Publication Year: 1992, Page(s):225 - 231
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB)

    The earlier evolution of computer-aided control system design (CACSD) tools is discussed from a software engineering perspective. A model of the design process is presented as the basis for principles and requirements of future CACSD tools. Combinability, interfacing in memory, and an open workspace are seen as important concepts in CACSD. Some points are made about the problem of buy or make when... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • MaTX: a high-performance programming language (interpreter and compiler) for scientific and engineering computation

    Publication Year: 1992, Page(s):15 - 22
    Cited by:  Papers (8)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    A description is given of MaTX, a high-performance programming language for scientific and engineering computation that provides not only command-line interpreter matx whose interfaces are similar to the use of Matlab but also compiler matc which accepts the same syntax as that of matx and outputs portable C language code. The users can extend the functionality of a program by realizing algorithms... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Integrated design environment for process control

    Publication Year: 1992, Page(s):90 - 93
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    An integration strategy for designing an interactive computer-aided control system design environment for chemical processes, in which several independently developed subprograms are coordinated by a metasystem, is presented. In this approach, each subprogram can be easily modified without affecting other subprograms. It also allows other subprograms to be added to the system easily. Individual su... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A model for visual observation under uncertainty

    Publication Year: 1992, Page(s):269 - 274
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    The problem of observing a moving agent is addressed. A modeling approach for the visual system and its observer is advocated in which a discrete-event dynamic system (DEDS) framework is developed and events are defined as ranges on parameter subsets. In particular, a system for observing a process in which a robot hand manipulates an object is proposed. A stabilizing observer is constructed, and ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Learning and adaptation in control systems with interactive computer graphics

    Publication Year: 1992, Page(s):180 - 187
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    A neural-based computer-aided control system design tool is described. For control purposes, a learning and adaptive neural controller, called the inverse-dynamics neural controller, is proposed for unknown linear dynamical plants. The mathematical relationship describing the dynamics of the plant under control does not need to be known a priori, and no teaching signal is required to guide the lea... View full abstract»

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

    Publication Year: 1992, Page(s):23 - 29
    Cited by:  Papers (14)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    The main ideas behind the new universal, equation-based, and object-oriented modeling language Omola are discussed. Omola is designed to support model development and facilitate reuse so a model can be used to solve various problems and so model components can be easily modified to model similar systems. To implement this, Omola supports modern concepts for model structuring. Models can be hierarc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Netlib library for the systems and controls community

    Publication Year: 1992, Page(s):211 - 214
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    A sublibrary of Netlib, a network-accessible software library, developed for the systems and controls community, is described. It is sponsored by the Computer-Aided Control Systems Design working group of the IEEE Control Systems Society and can be accessed by anyone who can exchange mail with US Internet hosts. Contributions of software which have been placed in the public domain by the authors a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hypermedia in CACSD education for distributed parameter systems

    Publication Year: 1992, Page(s):250 - 253
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    Hypermedia in computer-aided control system design (CACSD) education is discussed. Experiences with using the TDP simulator for distributed parameter systems are presented. Individual tools for modeling, designing, and simulating distributed parameter systems in the TDP simulator are discussed. Special attention is paid to interfaces between these tools View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Caesy: a computer-aided engineering system

    Publication Year: 1992, Page(s):232 - 237
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    A new software tool, Caesy (for computer aided engineering system), is described. This tool provides a strong programming environment for research in the development of algorithms and software for computer-aided control system design. An analysis of requirements is presented along with a brief description of the user language and the design of the prototype software implementation View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • DSSA case study: navigation, guidance, and flight director design and development

    Publication Year: 1992, Page(s):102 - 109
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    The effort to create a workstation-based environment to support the development, maintenance and upgrade of avionics systems with an order-of-magnitude improvement in quality and productivity over current approaches through the reuse of large portions of well-designed and documented software is discussed. The challenges of capturing and representing knowledge for avionics navigation, guidance, and... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • AP _LIN-a tool box for approximate linearization of nonlinear systems

    Publication Year: 1992, Page(s):94 - 101
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    A toolbox for nonlinear control system design is presented. This package contains modules to approximate systems as polynomial systems of arbitrary order and then render them input-output linear or input-state linear with arbitrary-order error terms. Possibilities for real-time control are discussed View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • How well can data temporal consistency be maintained?

    Publication Year: 1992, Page(s):275 - 284
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (804 KB)

    A model of hard real-time systems where tasks access shared data is presented, and temporal consistency is defined in terms of the age and dispersion of data. Based on this model, two variants of a multiversion lock-based concurrency control algorithm and two priority-driven preemptive scheduling algorithms, rate-monotone and earliest-deadline-first, are evaluated. Simulation results indicate how ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • PID autotuner design using machine learning

    Publication Year: 1992, Page(s):173 - 179
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    A method using machine learning to automatically produce controller tuning algorithms is described. The method constitutes a decision tree which selects from a set of tuning rules the rule which is best able to improve controller characteristics. The decision tree is constructed using a training set of example systems. Evaluations of the resulting tuning algorithm are performed using a large indep... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Phase-space control system design

    Publication Year: 1992, Page(s):68 - 75
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (740 KB)

    A computational environment that has been developed to aid control system design for a particular class of nonlinear applications is described. The analysis and design tools that comprise this environment are based on knowledge about phase-space dynamics of nonlinear and chaotic systems. Two implemented, complementary programs that exploit the special properties of such systems to automatically sy... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Frequency response computation via rational interpolation

    Publication Year: 1992, Page(s):188 - 195
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    A simple rational interpolation method is given for estimating a frequency response matrix. The method is based on a generalization of the resolvent identity that avoids the potential inaccuracies introduced by the subtraction of nearly equal values in the calculation of the difference terms. When coupled with a pole cancellation method, the resulting interpolation algorithm is accurate and effici... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Domain-specific software architectures: distributed intelligent control and management

    Publication Year: 1992, Page(s):117 - 128
    Cited by:  Papers (6)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1304 KB)

    The development of a generic control architecture suitable for use as a single intelligent agent or as multiple cooperating agents is described. The generic architecture combines a task-oriented domain controller with a metacontroller that schedules activities within the domain controller. The domain controller provides functions for model-based situation assessment and planning, and intercontroll... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Automatic scheduling challenges in guidance, navigation and control

    Publication Year: 1992, Page(s):293 - 300
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    A perspective on the problems associated with automating the real-time process scheduling for sophisticated guidance, navigation, and control (GN&C) systems is provided. Some of the real-time scheduling issues that arise in the domain of GN&C are described. Several potentially relevant scheduling theories are described, and their relative advantages are discussed. Some of the technical pro... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Modelling of power systems in Omola for transient stability studies

    Publication Year: 1992, Page(s):30 - 36
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    It is illustrated how the universal, equation-based, and object-oriented modeling language Omola facilitates modeling and simulation. The application is modeling of power systems for transient stability studies. However, the intention is not to develop a full-fledged power system mode, but to illustrate general ideas with concrete examples. The focus is on structural issues of model decomposition,... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An iteration scheme for dominant singular values

    Publication Year: 1992, Page(s):215 - 217
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (148 KB)

    An iteration method is presented for determining the largest singular value (2-norm) of a matrix, and its corresponding singular vectors. Connections with the power method and Bernoulli's method are presented. A formula is derived which describes the relationship between a matrix perturbation and the perturbation of its singular values View full abstract»

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