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.
  • Knowledge-based control

    Publication Year: 1992, Page(s):138 - 147
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    Knowledge-based control is defined here as the management of dynamic systems whose states admit qualitative modeling. Contributions from several disparate disciplines, such as artificial intelligence, the decision sciences, and fuzzy control, are examined. An aeronautical application is used to illuminate the concepts examined. Two levels of architecture are presented for implementing qualitative ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Efficient data storage handling in MATLAB

    Publication Year: 1992, Page(s):9 - 14
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    A method is presented to save simulation data directly to disk. During a simulation run a large amount of data will be generated. In MATLAB the only way to archive the results is to extend a matrix by appending new data to this matrix. Due to the internal mechanism of MATLAB this is far from efficient. Here a method is demonstrated to save and retrieve data very fast and with almost no memory cons... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Linearization algorithms and heuristics for computer-aided control engineering

    Publication Year: 1992, Page(s):156 - 164
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    Algorithms and heuristic logic for the accurate and robust linearization of nonlinear dynamic system models are presented. This research is robust linearization methods has yielded new conventional methods and algorithms for linearization, as well as a new expert system to aid the controls engineer in determining linearized models for nonlinear systems. The focus here is on conventional methods an... 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.
  • Designing databases in real-time embedded systems

    Publication Year: 1992, Page(s):285 - 292
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (596 KB)

    The issues involved in implementing databases in hard real-time systems are investigated. The requirements of real-time databases are examined, and two new correctness measures, external consistency and temporal consistency, are proposed. An approach to defining transaction periods so that databases can guarantee the desired real-time performance is studied 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.
  • 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.
  • 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.
  • Computer-aided modeling, analysis, and design of discrete event systems using Petri nets

    Publication Year: 1992, Page(s):255 - 260
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    The use of Petri nets for computer-aided design and analysis of discrete-event systems (DES) on the discrete event control level is described. Several CAD packages devoted to different aspects of DES in different environments are described. They include a powerful and user-friendly Petri net graphic editor, a behavior analyzer based on reachability-graph generation or reduction, a performance eval... 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.
  • 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.
  • 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.
  • Hybrid control

    Publication Year: 1992
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (104 KB)

    An effort to investigate an environment for the design, implementation and evaluation of hierarchical, distributed, intelligent hybrid control is summarized. Hybrid control here means an integrated approach to continuous physical devices (mechanical, electrical, hydraulic, etc.) being controlled by discrete computational units (digital CPUs). Nonlinear dynamical systems theory is being used to sup... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Domain-specific software architectures for intelligent guidance, navigation and control

    Publication Year: 1992, Page(s):110 - 116
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    The development of a domain-specific software architecture for intelligent (adaptive) guidance, navigation and control for aerospace applications is discussed. Some distinguishing aspects of the domain are a need to adapt to a variety of specialized target hardware systems, requirements for high reliability and system certification, and increasing demands for functional integration and high perfor... 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.
  • 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.
  • Closed-loop convex analysis of performance limits for linear control systems

    Publication Year: 1992
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    Closed-loop convex analysis and design, in which the linear controller design problem is reformulated as a convex optimization problem that may be more easily solved than the problems resulting from conventional formulations, are discussed. This reformulation synthesizes control laws that have high degree, but nevertheless can be implemented using digital signal processors. The solution is rarely ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • AnDeCS: a concurrent control engineering project

    Publication Year: 1992, Page(s):37 - 46
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (900 KB)

    AnDeCS (for analysis and design of controlled systems) is a project for developing a coherent computer-aided technology for concurrent control engineering, i.e., multidisciplinary dynamics design integration with emphasis on controlled systems. The technological requirements (concepts, methods, and software tools) for supporting end-user aims, a common view on method-experiments and model-experime... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Interactive loop-shaping design of MIMO controllers

    Publication Year: 1992, Page(s):76 - 81
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    It is shown that many classical and singular value loop shaping problems are closed-loop convex. Consequently, loop shaping problems can be solved by efficient numerical methods. In particular, it can be determined whether or not a compensator exists that satisfies a given set of loop shaping specifications. Loop shaping design problems that are formulated as classical optimization problems, e.g.,... 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-command and control

    Publication Year: 1992, Page(s):129 - 136
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    The command and control aspect of the domain-specific software architectures program is discussed. The objective is to develop and demonstrate an architecture-driven, component-based capability for the automated generation of command and control applications. An overview is given of the approach being taken. The automated generation of application components in the message-handling subdomain is th... 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.