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Control Systems, IEEE

Issue 1 • Date Feb. 2004

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Displaying Results 1 - 21 of 21
  • The sensitivity of computational control problems

    Publication Year: 2004 , Page(s): 28 - 43
    Cited by:  Papers (6)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1726 KB) |  | HTML iconHTML  

    The article discussed the sensitivity of a certain problems of linear control theory, including pole assignment, full state feedback linear quadratic control and H control. It was demonstrated that the mathematical formulation and the splitting of the problem into subproblems are essential factors in the conditioning of these problems. It was also shown that standard approaches implemented in numerical toolboxes, which present widely accepted approaches in numerical control, may face problems due to ill conditioning. Some of these problems can be avoided by reformulating the problem, but several open problems remain. To assess the accuracy of calculations and to trust numerical results, such condition and accuracy estimates should accompany computational procedures and must be included in the corresponding computer codes. Users must be aware of possible difficulties accompanying the computational process and know how to avoid them. The issues should also become an essential part of the curriculum for scientist and engineers in learning how to use and develop modern computational software. View full abstract»

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  • High-performance numerical software for control

    Publication Year: 2004 , Page(s): 60 - 76
    Cited by:  Papers (13)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (841 KB) |  | HTML iconHTML  

    This article is concerned with the development of quality control-application software that performs efficiently and reliably on modern computing machines. In particular, we describe the subroutine library SLICOT (subroutine library in control theory) [P. Benner, et al., 1999], give the background and motivation for the development of this library, and describe its most important features. View full abstract»

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  • Your Magazine (From the Editor)

    Publication Year: 2004 , Page(s): 6 - 8
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  • People in Control

    Publication Year: 2004 , Page(s): 77 - 80
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  • Numerical awareness in control

    Publication Year: 2004 , Page(s): 14 - 17
    Cited by:  Papers (1)
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  • Solving large-scale control problems

    Publication Year: 2004 , Page(s): 44 - 59
    Cited by:  Papers (14)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (978 KB) |  | HTML iconHTML  

    In this article we discuss sparse matrix algorithms and parallel algorithms, as well as their application to large-scale systems. For illustration, we solve the linear-quadratic regulator (LQR) problem and apply balanced truncation model reduction using either parallel computing or sparse matrix algorithms. We conclude that modern tools from numerical linear algebra, along with careful investigation and exploitation of the problem structure, can be used to derive algorithms capable of solving large control problems. Since these approaches are implemented in production-quality software, control engineers can employ complex models and use computational tools to analyse and design feedback control laws. View full abstract»

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  • IEEE Control Systems Society Staff List

    Publication Year: 2004 , Page(s): 103
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    Freely Available from IEEE
  • In Memoriam - James Stephen Meditch

    Publication Year: 2004 , Page(s): 88
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    Freely Available from IEEE
  • Products in Control

    Publication Year: 2004 , Page(s): 98 - 101
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    Freely Available from IEEE
  • The basics of developing numerical algorithms

    Publication Year: 2004 , Page(s): 18 - 27
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (581 KB) |  | HTML iconHTML  

    In this article, we surveyed several numerical methods arising in systems and control and pointed out general principles that lead to numerically reliable algorithms for solving a large range of problems in this area. Algorithms that use orthogonal or unitary transformation were emphasized because they often lead to reliable numerical algorithms. We focused on those problems for which good algorithms are available. It is crucial to have robust numerical software available to implement these ideas, and the NICONET project aims at providing exactly that. Moreover, the underlying software library SLICOT is freely available for noncommercial use. View full abstract»

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  • IFAC Symposium on System Identification, SYSID 2003 (Conference Report)

    Publication Year: 2004 , Page(s): 81 - 82
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  • IEEE Control Systems Magazine

    Publication Year: 2004 , Page(s): 01
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    Freely Available from IEEE
  • Table of contents

    Publication Year: 2004 , Page(s): 2 - 4
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    Freely Available from IEEE
  • Rowing Teams (President's Message)

    Publication Year: 2004 , Page(s): 10 - 12
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    Freely Available from IEEE
  • Scanning the Transactions

    Publication Year: 2004 , Page(s): 83 - 87
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    Freely Available from IEEE
  • Writing Guidelines for IEEE Control Systems Magazine

    Publication Year: 2004 , Page(s): 89 - 90
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    Freely Available from IEEE
  • Preparing manuscripts for IEEE Control Systems Magazine

    Publication Year: 2004 , Page(s): 90 - 95
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    Freely Available from IEEE
  • Conference Calendar

    Publication Year: 2004 , Page(s): 96 - 97
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    Freely Available from IEEE
  • Cooperative Control School (On the Lighter Side)

    Publication Year: 2004 , Page(s): 104
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    Freely Available from IEEE
  • Have you visited lately? See for yourself at www.ieee.org

    Publication Year: 2004 , Page(s): 9
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    Freely Available from IEEE
  • IEEE is patents [advertisement]

    Publication Year: 2004 , Page(s): 13
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Aims & Scope

IEEE Control Systems Magazine is the largest circulation technical periodical worldwide devoted to all aspects of control systems.

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Meet Our Editors

Editor-in-Chief
Jonathan P. How
jhow@mit.edu