Proceedings of Joint Conference on Control Applications Intelligent Control and Computer Aided Control System Design

15-18 Sept. 1998

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  • Proceedings of Joint Conference on Control Applications Intelligent Control and Computer Aided Control System Design

    Publication Year: 1996
    Request permission for commercial reuse | PDF file iconPDF (889 KB)
    Freely Available from IEEE
  • Index of Authors, Chairpersons, and Organizers of the 1996 IEEE CCA/ISIC/CACSD

    Publication Year: 1996, Page(s):555 - 565
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (969 KB)

    Presents an index of the authors whose papers are published in the conference. View full abstract»

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  • Protocol conversion using supervisory control techniques

    Publication Year: 1996, Page(s):32 - 37
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (612 KB)

    A protocol mismatch occurs when heterogeneous networks try to communicate with each other, and a protocol conversion mechanism is needed for proper communication. We present a systematic approach to protocol conversion using the recent theory of supervisory control of discrete event systems. We study the problem of designing a converter for a given mismatched pair of protocols, using their specifi... View full abstract»

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  • Multivariable compensator design using polynomial matrices and interval arithmetic

    Publication Year: 1996, Page(s):194 - 199
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    A design method for H2-compensators is presented for linear multivariable plants. The advantages of a compensator with two degrees of freedom are used and the intuitive method using transfer function and polynomial matrices is pursued. With the introduction of an interval arithmetic the numerical obstacles are avoided and a numerical stable design tool is offered. The tool was then test... View full abstract»

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  • Design of bang-bang controller based on a fuzzy-neuro approach

    Publication Year: 1996, Page(s):1 - 6
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    A fuzzy-neuro approach for the design of bang-bang controller is presented in this paper. The approach has been used with success for the time optimal bang-bang control of a heating system. The improved bang-bang controller suppresses the oscillations often observed at the output of an on-off controller. A fuzzy system is used for the implementation of the on-off control. An extension of the fuzzy... View full abstract»

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  • SCICOS-a dynamic system builder and simulator

    Publication Year: 1996, Page(s):430 - 435
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    Even though it is possible to simulate mixed discrete continuous (hybrid) dynamics systems in scientific environments such as Matlab and Scilab using ordinary differential equation solvers, implementing the discrete recursions and the logic for interfacing the discrete and the continuous parts usually requires a great deal of programming. These programs are often complex, difficult to debug and sl... View full abstract»

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  • The declarative approach to design of robust control systems

    Publication Year: 1996, Page(s):26 - 31
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    We apply recent results concerning closed-form solution of nonlinear systems to previous work on computer-aided control system design (CACSD). We previously discussed an approach for CACSD (Kohn, 1994) which would establish a link from requirements development to implementation and would also support construction of automata which simultaneously comply with discrete and continuous constraints. In ... View full abstract»

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  • A cone complementarity linearization algorithm for static output-feedback and related problems

    Publication Year: 1996, Page(s):246 - 251
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    This paper describes a linear matrix inequality (LMI)-based algorithm for the static and reduced-order output-feedback synthesis problems of n-th order linear time invariant (LTI) systems with nu (resp. ny) independent inputs (resp. outputs). The algorithm is based on a “cone complementarity” formulation of the problem, and is guaranteed to produce a stabilizing ... View full abstract»

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  • Inverse robustness measurement: the analysis of linear pole placement regulators

    Publication Year: 1996, Page(s):188 - 193
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    The paper discusses the measurement of a controller robustness for given uncertainties in plant parameters for an LTI and SISO model. Robustness is calculated according to some regions of z-plane or s-plane where the closed-loop system poles must be delimited. The method employs a geometric representation of the uncertainty space in the system parameters and is based on algebraic relationships cha... View full abstract»

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  • Integrated design process with MESA/MERLAN

    Publication Year: 1996, Page(s):333 - 338
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB)

    In this paper, a methodology for the design of microelectronic systems which include hardware and software for open-loop and closed-loop control will be presented. An integrated approach to specification and design, analysis and simulation of the overall system has been developed. This provides for a systematic, computer aided approach to requirements definition, specification and design as well a... View full abstract»

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  • High-level data structures in CACSD example: programming with graphs in Scilab

    Publication Year: 1996, Page(s):424 - 429
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (708 KB)

    This paper presents high-level data structures required for defining and manipulating graphs and networks: the Metanet Scilab toolbox is described and implementation issues are illustrated through simple examples. This is done using capabilities which are not offered by standard CACSD packages, such as user defined objects and list structures View full abstract»

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  • Embedding objects into Matlab/Simulink for process supervision

    Publication Year: 1996, Page(s):20 - 25
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    This paper introduces how artificial intelligence technologies can be integrated into a known computer aided control system design (CACSD) framework, Matlab/Simulink, using an object oriented approach. The aim is to build a framework to aid supervisory systems analysis, design and implementation. The idea is to take advantage of an existing CACSD framework, Matlab/Simulink, so that engineers can p... View full abstract»

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  • An integrated environment for hidden Markov models-a Scilab toolbox

    Publication Year: 1996, Page(s):446 - 451
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    A hidden Markov model toolbox is presented within the Scilab environment. In this toolbox popular methods for the resolution of HMM problems are incorporated. These methods cover the training and recognition phases. Models may be used with discret and continuous observations. This toolbox includes conventional methods as well as extensions View full abstract»

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  • Design and implementation of a parser/solver for SDPs with matrix structure

    Publication Year: 1996, Page(s):240 - 245
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    A wide variety of analysis and design problems arising in control communication and information theory, statistics, computational geometry and many other fields can be expressed as semidefinite programming problems (SDPs) or determinant maximization problems (maxdet-problems). In engineering applications these problems usually have matrix structure, i.e., the optimization variables are matrices. R... View full abstract»

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  • An algorithm to integrate passive and active control

    Publication Year: 1996, Page(s):536 - 541
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    This article presents an algorithm to integrate the passive and active control for automotive suspension systems. The objective of the algorithm is to simultaneously find: 1) the optimal values of the stiffness and damping ratios for the springs and dampers; and 2) an optimal stabilizing controller such that the active control energy is minimized subject to the prespecified RMS constraints on the ... View full abstract»

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  • A contribution to the design and simulation of discrete-event-driven systems

    Publication Year: 1996, Page(s):363 - 367
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    In this paper, a logical-dynamical system modeling and simulation tool is introduced. This tool combines both the discrete event system and continuous time system. The model of the discrete event system is represented by a Petri net model (specific condition/event net). Using the “composite component model” the continuous time system, called the basic system, is designed. Both systems ... View full abstract»

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  • Computational chains for CACSD using Matlab containers

    Publication Year: 1996, Page(s):392 - 397
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    Computational chains which `remember' that a computation has already been performed and its results are available for further use have been implemented using special classes of Matlab containers. A simple version management mechanism keeps track of any changes made to containers in the chain, and supports storage and retrieval of design data. Computational chains can be used as a basis for a more ... View full abstract»

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  • Optimal output feedback control: a multi-model approach

    Publication Year: 1996, Page(s):327 - 332
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    In this paper we describe a computational approach to the optimal output feedback control of multi-model systems by means of a unique constant output feedback matrix. Extension of the method to output feedback control of multi-model periodic systems is also presented. The power of the proposed approach is illustrated by the simultaneous stabilization and optimization of a helicopter multi-model View full abstract»

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  • Algorithms and software tools for LMI problems in control: an overview

    Publication Year: 1996, Page(s):229 - 234
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    The purpose of this paper is to give an overview of recent developments in algorithms and software for linear matrix inequality (LMI) problems. We review the definition and some basic properties of the semidefinite programming (SDP) problem, and describe recent developments in interior point algorithms and available software. We conclude with some extensions of the SDP View full abstract»

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  • NLR's CACE working environment ISMuS

    Publication Year: 1996, Page(s):468 - 472
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    This paper describes ISMuS (Information System to support the development of digital simulation models for Multibody Systems), which is the Netherlands' National Aerospace Laboratory's (NLR's) working environment for computer-aided control engineering (CACE). ISMuS provides via a graphical user interface for transparent access to a collection of CACE tools and information management tools on a net... View full abstract»

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  • Solution of under-determined Sylvester equations in sensor array signal processing

    Publication Year: 1996, Page(s):89 - 90, 91a-ab, 92a-ab
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    In this paper, we propose efficient solution of an under-determined matrix equation. The matrix equations studied here appear in the study of subspace based high resolution multiparameter direction of arrival estimation. The proposed gradient based technique has at least an order of magnitude computational improvement over the existing approaches. Simulation results are provided to illustrate the ... View full abstract»

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  • Model definition and management using multiple realizations-case studies in Omola

    Publication Year: 1996, Page(s):416 - 423
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (908 KB)

    Presents a tutorial exposition of the syntactic constructs of object-oriented modeling languages that support the programming of multiple realizations. In contrast to previous studies, this paper concentrates on model refinement and management of complexity rather than model reuse. Multiple realizations are used in organizing structure variations, effectively yielding two composite models in the f... View full abstract»

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  • A Matlab toolkit for the study of oscillations in relay systems

    Publication Year: 1996, Page(s):286 - 291
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    A Matlab toolkit for finding periodic modes in relay control systems is described which has an excellent GUI and graphical facilities, and allows the user to analyse complex behaviours such as multi-pulse oscillations. Graphical and analytical tools for finding the parameters of the limit cycles, their stability and waveforms are provided View full abstract»

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  • Pencil algorithms and observer design

    Publication Year: 1996, Page(s):83 - 88
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    We give canonical forms for a general singular matrix pencil from which several observer design problems are easily solved. The geometrical basis of these forms is emphasized. Algorithms for the robust computation of the needed subspaces are given View full abstract»

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  • Integration of mechatronic design tools with CAMeL, exemplified by vehicle convoy control design

    Publication Year: 1996, Page(s):516 - 523
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    The problems of designing mechatronic systems (e.g. heterogeneous system components and their design methods, complexity) cause the need for an open, integrated design environment. This paper details the process-oriented approach of the software environment CAMeL (Computer-Aided Mechatronics Laboratory) to the integration of different tools and methods. Characteristic concepts and implementation f... View full abstract»

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