E-LETTER on Systems, Control, and Signal Processing
ISSUE No. 62, October 1, 1993
E-mail: eletter-request@win.tue.nl
Editors: Anton A. Stoorvogel
Dept. of Mathematics & Computing Science
Eindhoven University of Technology
P.O. Box 513
5600 MB Eindhoven
the Netherlands
Fax +31-40-465995
Siep Weiland
Dept. of Electrical Eng.
Eindhoven University of Technology
P.O. Box 513
5600 MB Eindhoven
the Netherlands
Fax +31-40-434582
Contents
1. Editorial
2. Personals people on the move
awards and recognitions
3. General announcements Information from Johns Hopkins available
by ftp
Free educational software package
3DVIEWNIX Software System
Software package for Robotics
SIAM Student Travel Awards 1994
Richard C. DiPrima Prize
SIAM Student Prizes Awards
4. Positions Research Ass. Carnegie Mellon University
5. Books Quantitative Feedback Design Theory (QFT)
Sigma Delta Modulators: Nonlinear Decoding
Algorithms and Stability Analysis
Numerical Linear Algebra
Applied Algebra and Functional Analysis
Robust Control: Systems with
uncertain physical prameters
6. Journals: Linear Algebra and its Applications
SIAM Review
Special Issue IJRNC
SIAM J. Math. Anal.
Journal of Systems Engineering,
Special issue Motion Control Systems
7. Conferences: Tutorial workshop on recent developments
of input-output techniques in control
theory
Fifth SIAM Conf. on Applied Linear Algebra
12th IFAC Workshop on Distributed Computer
Control Systems
Conf. on Feedback Control, Nonlinear
Systems, and Complexity
Int. Working Conf. on Cooperating
Knowledge Based Systems
IFAC/IFIP Workshop Real Time Programming
Data Compression Conference (DCC '94)
Conference on Control and Information
Tutorial Workshop Robustness of Systems
with Real Parametric Unicertainty
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* *
* Editorial *
* *
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Welcome to E-letter number 62 !!!
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* *
* Personals *
* *
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1) Dr. M. Sampei has moved to Tokyo Institute of Technology. His new
address is:
Mitsuji Sampei
Dept.of Control and Systems Eng.
Tokyo Institute of Technology
2-12-1 Oh-Okayama Meguro-ku Tokyo, JAPAN
Phone: +81(3)3726-1111 ex.2552
Fax: +81(3)3729-1774
E-mail:sampei@ctrl.titech.ac.jp
2) In the next Academic Year (93/94) Dr. Josef Shinar will be
on a sabbattical leave from the Technion. His mailing address will be:
Dr. Josef Shinar, Visiting Professor
Department of Mechanical and Aerospace Engineering,
Princeton University
P.O.Box CN5263
Princeton, New Jersey, 08544,
USA.
Fax: (609)-258-1918
e-mail: SHINAR@PUCC.PRINCETON.EDU
He will return to the Technion (with the help of God) on 1 Oct. 1994.
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* *
* General announcements *
* *
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contributed by: Jack Rugh
Information from Johns Hopkins available by ftp
A postscript file "LST-rugh.ps" listing corrections to the
first printing of the text
Wilson J. Rugh, LINEAR SYSTEM THEORY, Prentice Hall, 1993
is available by ftp from the machine jhunix.hcf.jhu.edu
(128.220.2.5). Log on using the name "ece_tr" and follow
instructions. Other files available include corrections to
an older book on Volterra Series, and, on a more positive note,
various technical reports from the ECE Department. Consult the
files "READ.ME" and "INDEX" for futher information.
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contributed by: Kurt Kosbar
FREE EDUCATIONAL SOFTWARE PACKAGE
P. C. CONVOLUTION
P.C. convolution is a educational software package that graphically
demonstrates the convolution operation. It runs on IBM PC type computers
using DOS 4.0 or later. It is currently being used in schools of Mathematics,
Electrical Engineering, Earth Sciences, Aeronautics, Astronomy, Geophysics,
and (believe it or not) Experimental Psychology.
Anyone may download a demonstration version of this software via anonymous
ftp from 131.151.4.11 (file name /pub/pc_conv.zip)
University instructors my obtain a free, fully operational version by
contacting Dr. Kurt Kosbar at the address listed below.
Dr. Kurt Kosbar
117 Electrical Engineering Building, University of Missouri - Rolla
Rolla, Missouri, USA 65401, phone: (314) 341-4894
e-mail: kk@ee.umr.edu
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contributed by: Yair Censor .
3DVIEWNIX : A DATA-, MACHINE-, AND APPLICATION-
INDEPENDENT SOFTWARE SYSTEM FOR THE VISUALIZATION
AND ANALYSIS OF MULTIDIMENSIONAL IMAGES
3DVIEWNIX is a transportable, very inexpensive software system
developed by the Medical Image Processing Group, Department of
Radiology, University of Pennsylvania, Philadelphia. It has
state-of-the-art capabilities for visualizing, manipulating, and
analyzing multidimensional image data. It is developed
to be as standard as one could possibly make. This educational
software system will be distributed with source code for a fee of
$1,000. For further information contact:
Dr. Jayaram K. Udupa
Medical Image Processing Group
University of Pennsylvania
Department of Radiology
418 Service Drive - 4th Floor Blockley Hall
Philadelphia, PA 19104-6021
Phone: (215) 662-6780
FAX: (215) 898-9145
email: jay@jay.mipg.upenn.edu
PURPOSE OF 3DVIEWNIX
(1) To promote widespread use of 3D imaging
(2) To promote cooperative research - technical and applied -
in 3D imaging
(3) To enable end users and researchers to set up a very
inexpensive, state-of-the-art, 3D imaging system
UNIQUE FEATURES OF 3DVIEWNIX
(1) Transporable - based on UNIX, X-window, and C
(2) Based on multidimensional generalization of ACR-NEMA standards
of data representation
(3) Application-independent
(4) Image dimensionality independent
(5) Can handle rigid, non-rigid, static, and dynamic objects and
object assemblies
(6) Can handle object information from multiple modalities and
longitudinal acquisitions
(7) Multitudes of visualization, manipulation, and analysis
methods incorporated
(8) Open software system distributed with source code
3DVIEWNIX OPERATIONS
(1) Preprocessing
(2) Visualization
(3) Manipulation
(4) Analysis
PREPROCESSING
Volume-of-Interest:
. To specify subset of the n-dimensional (nD) volume image
. To specify an intensity-interval-of-interest for reducing
the number of bits
Interpolation:
. To create isotropically sampled data of lower or higher
resolution than input
. Many interpolating functions
. Interpolation in n dimensions
. Both grey-level and shape-based methods
Filtering:
. A variety of forms of enhancing and smoothing filters
. Used for filtering surfaces, for normal estimation, for
interpolation, and volume renderning
. Filtering in n dimensions
Masking:
. For assisting segmentation
. Quick operation using "paint brushes"
Thresholding:
. Multiple intervals can be specified
. Iso-surface generation at any resolution
Segementation:
. 2-feature cluster partitioning
. Quick gesture-controlled (user-guided) boundary segmentation
Classification:
. 1-feature multiple material classification for opacity assignment
. 2-feature multiple material classification for opacity assignment
Boundary Formation:
. Connected, oriented, closed nD surfaces are formed
. Surfaces may have any resolution
VISUALIZATION
Slice:
. Sophisticated form of slice display
. Multiple input volumes of any dimensionality can be handled
simultaneously
. Multiple color maps
. Static montage viewing and dynamic cine viewing of slices
. Arbitrary magnification
Reslice:
. Guided by 3D display
. Reslicing through multidimensional volumes
Surface Rendering:
. Multitudes of methods
. Multiple objects with translucency and color
. Based on the notion of a structure system: A
structure system may be a collection of static objects,
dynamic rigid objets, dynamic non-rigid objects or any
of these coming from multiple modalities
. Structure systems are visualized in their natural form,
e.g., a beating heart is displayed in that manner
. Viewing properties of objects can be changed independently
Volume Rendering:
. A new very fast method called shell rendering
. Interactive rendering
. Interactive opacity and color modification
. Interactive measurement of fuzzy surfaces
MANIPULATION:
. One of the most sophisticated set of operations in 3DVIEWNIX
. A variety of complex operations including cut away, reflect,
separate, move, surface marking, measure, animation
. Complex surgical procedures can be simulated
ANALYSIS:
Measurement:
. A variety of inter and intra structure morphometry
. A variety of image intensity-based measurements such as density
profile, time density curves, region-of-interest statistics
and their variation with time
Registration:
. Based on matching homologous features - points, curves,
entire surfaces
. For merging information from multiple modalities
. For motion description and analysis
Motion Analysis:
. Rigid object assemblies
. Animation of motion and its quantification
. Comparison of motion of two assemblies of objects such as
two joints
. Relationship between moving surfaces
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contributed by: Mark W. Spong
* NEW SOFTWARE PACKAGE FOR ROBOTICS *
******************************
* *
* ROBOTICA *
* A COMPUTER-AIDED DESIGN *
* PACKAGE FOR ROBOTS *
* *
******************************
Robotica is a computer aided design package for robotic manipulators
developed in the Coordinated Science Laboratory at the University of
Illinois at Urbana--Champaign. Robotica requires Mathematica 2.1, or
later, and encapsulates over 30 functions into a Mathematica package
allowing efficient symbolic computation, numerical calculation, and
graphical animation for kinematics, dynamics, and control of
multi--degree--of--freedom manipulators. An X-Windows front end that
utilizes the interprocess communication features of Mathematica 2.1
has also been created for ease of use. Currently, the X-Windows GUI
runs under OpenWindows 3; however, a Motif version will soon be available.
If you would like to read about Robotica before trying it:
A copy of the Robotica manual in PostScript format is available
via anonymous ftp. Login to as `anonymous';
give your email address when asked for a password. The manual is
approximately 93 pages with figures and is contained in the file
in the directory /pub/robotica.
To request Robotica:
Also in the directory /pub/robotica at is the
PostScript file . The University has asked
me to include this license agreement because it currently has too
many lawyers on the payroll with not enough work to do. The
license agreement basically states that you can have Robotica free
of charge to do with as you see fit (except to sell it). We will
use the license agreement to keep track of who has Robotica for
future upgrades, etc. Print out the license agreement, include
your name and address on the second page, sign it, and mail or
FAX it to me. Please include your email address. The package
will be sent to you (sans the manual) via email.
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contributed by: ddilisi@siam.org
Student Travel Awards for SIAM Conferences and Annual Meeting
-------------------------------------------------------------
During 1994, SIAM will make several awards of $250 to support student
travel to the following SIAM conferences:
Fifth ACM-SIAM Symposium on Discrete Algorithms;
January 23-25 in Arlington, VA
Conference on Emerging Issues in Mathematics and Computation from
the Materials Sciences; April 18-22 in Pittsburgh, PA
Fifth Conference on Applied Linear Algebra;
June 15-18 in Snowbird, UT
Seventh Conference on Discrete Mathematics;
June 22-25 in Albuquerque, NM
Annual Meeting; July 25-29 in San Diego, CA
Symposium on Inverse Problems and Applications: Geophysical Sciences;
December 12-14 in Fish Camp, CA
The awards are to be made from the SIAM Student Travel Fund, created in
1991 and maintained through book royalties donated by generous SIAM
authors.
Any full-time student in good standing is eligible to receive an award.
Top priority will be given to students presenting papers at the
meetings, with second priority to students who are co-authors of papers
to be presented at the meetings. Only students traveling more than 100
miles to the meetings are eligible for the awards.
An application for a travel award must include: (1) a letter from the
student stating the meeting for which support is being requested; (2)
a letter from the student's advisor or department chair stating that
the applicant is a full-time student in good standing; (3) if
applicable, the title(s) of the paper(s) to be presented (co-authored)
by the student at the meeting.
Applications should be sent to the SIAM office (Attn: SIAM Student
Travel Awards), 3600 University City Science Center, Philadelphia, PA
19104-2688. Students also may apply by e-mail to siam@siam.org or by
fax to 215-386-7999, but the letter from the advisor or department
chair must be an original, sent by postal mail.
Complete applications must be received at the SIAM office by no later
than one month before the first day of the meeting for which support
is requested.
Winners will be notified by no later than two weeks before the first
day of the meeting. Checks for the awards will be given to the winning
students when they register at the given meeting.
For further information about these awards, please contact Allison
Bogardo or Donna DiLisi in the SIAM office.
* * * * *
SIAM, 3600 University City Science Center, Philadelphia, PA 19104-2688
siam@siam.org; (215) 382-9800 (phone); (215) 386-7999 (fax)
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contributed by: ddilisi@siam.org
CALL FOR NOMINATIONS
FOR
THE RICHARD C. DiPRIMA PRIZE
The DiPrima Prize
-----------------
SIAM will present the award at the SIAM Annual Meeting in July 1994.
The award honors the memory of Richard C. DiPrima, long-time chair of
the department of mathematical sciences at Rensselaer Polytechnic
Institute and past-president and energetic supporter of SIAM. The
award, to be given to a young scientist, will be based on an
outstanding doctoral dissertation in applied mathematics.
Nominations
-----------
Nominations, along with a copy of the dissertation (in English), should
be sent by December 31, 1993 to:
Richard C. DiPrima Prize
c/o Donna DiLisi
Society for Industrial and Applied Mathematics
3600 University City Science Center
Philadelphia, PA 19104-2688
Eligibility
-----------
The award is made to a young scientist based on Ph.D. research in
applied mathematics (defined as those topics covered in SIAM journals
or series). The Ph.D. thesis and all other Ph.D. requirements should
have been completed in the time period from July 1, 1991 to June 30,
1993. The Ph.D. degree must be awarded by December 31, 1993.
Description of the Award
------------------------
The award will consist of a certificate and a cash prize of $1,000,
which will be awarded when a paper based on the Ph.D. thesis is
accepted for publication by the editors of a SIAM journal or series.
The president will notify the recipient of the award in advance of the
award date and invite the recipient to attend the annual meeting to
receive the award.
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Contributed by bogardo@siam.org
SIAM Student Paper Prizes
The annual SIAM Student Paper Prizes will be awarded during the 1994 SIAM
Annual Meeting.
If you are a student or know of a student who would like to take part in the
competition, here are the details:
The authors of the three best papers in applied and computational mathematics
written by students and submitted to SIAM will be invited to attend the 1994
annual meeting in San Diego, July 25-29. Each winner must present his/her
paper at the meeting and will receive a $750 cash award as well as gratis
registration for the meeting. Winners will be awarded calligraphed
certificates at a special prize ceremony at the meeting. Papers must be
singly authored and not previously published or submitted for publication to
be eligible for consideration. To qualify, authors must be students in good
standing who have not received their PhDs at the time of submission.
In submitting their work for publication, authors are asked to consider SIAM
journals.
Submissions must be received by SIAM on or before March 15, 1994.
Submissions, which must be in English, can be sent by regular mail or fax.
Each submission must include (1) an extended abstract NOT LONGER THAN 5 PAGES
(including bibliography); (2) the complete paper, which will be used solely
for clarification of any questions; (3) a statement by the student's faculty
advisor that the paper has been prepared by the author indicated and that the
author is a student in good standing; (4) a letter by the student's faculty
advisor describing and evaluating the paper's contribution; and (5) a short
biography of the student.
Submissions will be judged on originality, significance, and quality of
exposition.
The winners will be notified by June 1, 1994.
If you have any questions, please contact:
Allison Bogardo
SIAM
3600 University City Science Center
Philadelphia, PA 19104-2688
Telephone: (215) 382-9800
E-mail to bogardo@siam.org
Fax to (215) 386-7999
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* *
* Positions *
* *
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contributed by: Bruce H. Krogh
RESEARCH ASSISTANTSHIP IN MULTIVARIABLE PROCESS CONTROL
Dept. of Electrical & Computer Engineering (ECE)
Carnegie Mellon University (CMU)
I am looking for a Ph.D. student to work on a 3-year project on
"Advanced Control Strategies for Plasma Enhanced Chemical Vapor
Deposition (PECVD)". This project, funded by the National Science
Foundation, is an interdisciplinary effort to apply recent advances in
multivariable control theory to a critical process for semiconductor
manufacturing. An experimental system is being built by other members
of the project team to incorporate new in situ sensors for real-time
control. The appropriate Ph.D. candidate for this project should have
a strong background in control theory, combined with an interest in
extending and applying the theory to deal with the difficulties and
constraints that arise in process control applications. The research
will include the implementation and evaluation of the control
strategies on the PECVD system. A background in semiconductor
processes is desirable but not crucial as other members of the project
team will be working on the physical modeling and process development.
Applications for January admission to the Ph.D. program in ECE at CMU
can be obtained from Lynn Philibin: lynn@gauss.ece.cmu.edu
The application deadline is November 1, 1993.
For further information, contact me (Bruce Krogh, krogh@des.ece.cmu.edu).
******************************************
* *
* Books *
* *
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contributed by: Isaac Horowitz
"Quantitative Feedback Design Theory (QFT)" by Isaac Horowitz.
This book emphasizes that plant uncertainty (parameter & disturbance) is the
principal reason for using feedback in control, so quantitative statements of
the plant uncertainty and of the tolerable closed-loop system uncertainty, are
important parts of the design process. Quantitative, rigorous, detailed design
procedures are presented for SISO and MIMO, LTI, linear time-varying and
nonlinear highly uncertain plants, single loop and multiple-loop. Much
attention is paid to "cost of feedback" in terms of loop-bandwidth and sensor
noise effects at the plant input. There are 14 chapters, 505 pages & problems
are included. The price is $50.00, available from I.Horowitz, 4470 Grinnell
Ave., Boulder, CO 80303, USA, --prepaid . Thank You. I.Horowitz
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contributed by: Soren Hein
SIGMA DELTA MODULATORS: Nonlinear Decoding Algorithms
and Stability Analysis
Soren Hein and Avideh Zakhor
Kluwer Academic Publishers, Boston/Dordrecht/London, 1993.
ISBN 0-7923-9309-0, $79.95.
Kluwer Academic Publishers, Order Dept., PO Box 358, Accord Station,
Hingham, MA 02018-0358 // Kluwer Academic Publishers, PO Box 322,
3300 AH Dordrecht, The Netherlands.
Analog-to-Digital (A/D) converters are key components in Digital Signal
Processing (DSP) systems, and are therefore receiving much attention as
DSP becomes increasingly prevalent in telephony, audio, video, consumer
products, etc. The varying demands on conversion rate, resolution and
other characteristics have inspired a large number of competing A/D
conversion techniques. This book is concerned with the particular class
of A/D techniques called Oversampled Noise-Shaping (ONS) or Sigma Delta
Modulation that has recently come into prominence for a number of
applications. The popularity of ONS converters is due to their ease of
implementation and robustness to circuit imperfections.
An ONS converter consists of an encoder that generates a high-rate
low-resolution digital signal, and a decoder that produces a low-rate
higher-resolution digital approximation to the analog encoder input.
The conventional decoding approach is based on linear filtering. The
book addresses the problem of optimally designing a decoder for a given
encoder. It is shown that nonlinear decoding can achieve significant
gains in Signal-to-Noise Ratio (SNR) over linear decoding, depending on
the oversampling ratio and the encoder architecture. The book then
addresses the instability problem that plagues higher-order ONS
encoders. A new stability concept is introduced that is well-suited to
ONS encoders, and it is applied to the double-loop encoder as well as to
the class of interpolative encoders. It is shown that there exists a
trade-off between stability and SNR performance. Based on the results,
explicit design examples are presented.
252+xii pages, 110 figures, 12 tables.
CONTENTS
1. Introduction
1.1 Analog-to-Digital Conversion
1.2 Conventional Conversion
1.3 Oversampled Noise-Shaping Conversion
1.4 Contributions and Outline of Work
2. Properties of ONS Converters with Constant Inputs
2.1 Introduction
2.2 Single-Loop Encoder
2.3 Double-Loop Encoder
2.4 A Modified Cascade Structure for Constant Inputs
2.5 Summary
3. Optimal Decoding for ONS Encoders with Constant Inputs
3.1 Introduction
3.2 Optimal Decoding Under Ideal Conditions
3.3 Decoding in the Presence of Non-Idealities
3.4 Summary
4. An SVD-Based Method for Band-Limiting Finite-Extent Signals
4.1 Introduction
4.2 SVD-Based Band Limitation
4.3 Implementation of the SVD
4.4 Computational Properties of Band Limitation Methods
4.5 Results
4.6 Summary
5. Optimal Decoding for ONS Decoders with Band-Limited Inputs
5.1 Introduction
5.2 Reconstruction Algorithm
5.3 Results
5.4 Decoding in the Presence of Non-Idealities
5.5 Summary
6. Halftone to Continuous-Tone Conversion of Error-Diffusion
Coded Images
6.1 Introduction
6.2 Error Diffusion Coding
6.3 Decoding Algorithm
6.4 Results
6.5 Summary
7. Stability of ONS Encoders
7.1 Introduction
7.2 Framework for Stability Analysis
7.3 Double-Loop Encoder
7.4 Interpolative Encoder
7.5 Summary
8. Conclusions
8.1 Summary
8.2 Extensions
8.3 Future Directions
A. Appendix to Chapter 2
A.1 Derivations for Single-Loop Encoder
A.2 Derivations for Double-Loop Encoder
A.3 Proofs of Theorems
B. Appendix to Chapter 3
B.1 Performance Measures
B.2 Only Codewords Yield Compatible Bounds
B.3 Form of Non-Idealities
C. Appendix to Chapter 4
C.1 Energy Concentration
C.2 Resolution of the DFT
C.3 Effect of Windowing
D. Appendix to Chapter 5
D.1 Quadratic Programming Approximation
E. Appendix to Chapter 6
E.1 Stability of Error Diffusion Encoders
E.2 Two-Dimensional SVD Band Limitation
F. Appendix to Chapter 7
F.1 Upper Bounds on Double-Loop Limit Cycles
F.2 Design of Double-Loop Encoder
F.3 Describing Function Method
F.4 Proofs of Statements in Section 7.5.2.2.
Bibliography
Index
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contributed by: L. Reichel
Title: Numerical Linear Algebra
Editors: L. Reichel, A. Ruttan and R.S. Varga
Publisher: W. de Gruyter, Berlin, 1993.
ISBN: 3-11-013784-4
About the Book:
On March 13-14, 1992, a meeting of the Western Pennsylvania and Eastern
Ohio Section of SIAM, with the title Numerical Linear Algebra and Scientific
Computing was held at Kent State University, Kent, Ohio.
In the short period of two days, the roughly 60 participants heard new
research results in Numerical Linear Algebra from acknowledged leaders in the
field. The talks displayed the present activity in this area of Numerical
Analysis and illustrated the wide diversity of the ongoing research.
Some of the topics covered in papers of the proceedings:
* Iterative methods for large linear systems of equations. Papers
present new variants of the QMR, GMRES and SOR methods.
* Preconditioning of linear systems of equations. Papers discuss block
circulant preconditioners with application to image restoration and the
use of the block-ADI iterative method for preconditioning.
* Generalized M-matrices and ultrametric matrices.
* Algorithms for eigenvalue problems. A new more stable variant of
Rutishauser's qd algorithm is presnted, as well as a divide-and-conquer
algorithm for the generalized symmetric tridiagonal eigenvalue problem.
* An algorithm of interest for the computation of the singular value
decomposition of products of matrices.
* Ill-posed problems in image resoration.
* Implementation of iterative methods on sequential and parallel computers.
Contributing authors:
A. Bojanczyk, C.F. Borges, D. Calvetti, M. Eiermann, K.V. Fernando,
R.W. Freund, W.B. Gragg, M. Hanke, S. Ma, R. Nabben, N.M. Nachtigal,
J. Nagy, B.N. Parlett, J. Petersen, R. Plemmons, L. Reichel, Y. Saad,
P. Van Dooren, R.S. Varga
Information on ordering:
For the USA, Canada and Mexico:
Walter de Gruyter,Inc.
200 Saw Mill Road
Hawthorne, NY 10532, U.S.A.
Phone (914) 747-0110
Telex 646677
Fax (914) 747-1326
Price: US $79.95
For other countries:
Walter de Gruyter & Co.
Postfach 303421
10728 Berlin
Germany
Phone +49-30-26005-161
Telex 184027
Fax +49-30-26005-222
Price: DM 168,-
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contributed by: Charles Herget
PAPERBACK REPRINT
BOOK ANNOUNCEMENT
Title: Applied Algebra and Functional Analysis
Authors: Anthony N. Michel and Charles J. Herget
Publisher: Dover Publications Inc., Mineola, New York
------------------------------
About the Book:
This Dover edition is an unabridged, corrected republication of the work first
published by Prentice-Hall, Englewood Cliffs, N.J., 1981, under the title
Mathematical Foundations in Engineering and Science: Algebra and Analysis.
Written for graduate and advanced undergraduate students in engineering
and science, this book focuses primarily on set theory, algebra and analysis.
The book is essentially divided into three parts: set theory (Chapter 1),
algebra (Chapters 2-4), and analysis (Chapters 5-7). The
first two chapters deal with the fundamental concepts of sets, functions,
relations and equivalence relations, and algebraic structures. Chapter 3 and 4
cover vector spaces and linear transformations, and finite-dimensional
vector spaces and matrices. The last three chapters investigate
metric spaces, normed spaces (Banach spaces) and inner product spaces
(Hilbert spaces), and linear operators.
----------------------
CONTENTS:
Preface
Chapter 1: Fundamental Concepts
Chapter 2: Algebraic Structures
Chapter 3: Vector Spaces and Linear Transformations
Chapter 4: Finite Dimensional Vector Spaces and Matrices
Chapter 5: Metric Spaces
Chapter 6: Normed Spaces and Inner Product Spaces
Chapter 7: Linear Operators
Index
-----------------------------
ISBN: 0-486-67598-X Paperback 484 pages.
Information on ordering:
In the USA:
Dover Publications Inc.
31 East 2nd Street
Mineola, NY 11501
Phone: (516) 294-7000
Price: $ 10.95
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contributed by: Juergen Ackermann
ROBUST CONTROL:
SYSTEMS WITH UNCERTAIN PHYSICAL PARAMETERS
Juergen Ackermann
in cooperation with Andrew Bartlett, Dieter Kaesbauer, Wolfgang Sienel
and Reinhold Steinhauser
Springer-Verlag, Communications and Control Engineering Series
ISBN 3-540-19843-1/ISBN 0-387-19843-1, 406 pages, \$ 99.
* From the Back Cover:
Eigenvalues of linear feedback control systems indicate if responses
are composed of rapidly decaying and well damped terms without too high
a frequency content. This condition should be robust with respect to large
variations in operating conditions.
Robustness analysis deals with the answer to the following question:
Is the control system nicely stable for all admissible operating conditions?
An up-to-date account of methods for robustness analysis is given in the
book. Topics covered include:
. Practical Problems of Robust Control
. Stability Analysis of Polynomial Families
. Robustness Analysis of Feedback Systems
. Design Tools for Robust Control Systems
Synthesis of controllers to achieve robustness is scientifically an
unsolved problem. There are, however, useful design tools. Two approaches,
developed by the authors, are presented and successfully applied to the
control of mechanical systems. The recommended practical approach to robust
control design is to be an optimist in design and to be a pessimist in the
analysis of the resulting closed-loop system.
* Table of Contents
I Introduction to Some Practical Problems of Robust Control 1
1 Examples for Modelling of Plants with Uncertain Parameters 3
1.1 Crane 4
1.2 Four-Wheel Car Steering 9
1.3 Automatic Car Steering 15
1.4 A Flight Control Problem 19
1.5 Notation for Uncertain Plants 21
1.6 Exercises 23
2 Control System Structures 25
2.1 Robust Controllability and Observability 26
2.2 State and Output Feedback 29
2.3 Choice of Sensors 35
2.4 Further Aspects of Controller Structures 40
2.5 Robust Decoupling of Car Steering Dynamics 44
2.6 Gain Scheduling Controllers 49
2.7 Problem Classes of Parametric Polynomials 54
2.8 Exercises 55
3 Analysis and Design 57
3.1 Eigenvalue Specifications 57
3.2 Introduction to Robustness Analysis 67
3.3 Introduction to Robust Controller Design 71
3.4 Three Basic Rules of Robust Control 76
3.5 Exercises 76
II Stability Analysis of Polynomial Families 77
4 Classical Stability Tests Applied to Uncertain Polynomials 79
4.1 Root Set Problem Formulation 80
4.2 Boundary Crossing 87
4.3 Algebraic Problem Formulation 90
4.4 Singular Frequencies 99
4.5 Parameter Space Problem Formulation 106
4.6 Frequency Plot Problem Formulation 112
4.7 Exercises 121
5 Testing Sets 123
5.1 Interval Polynomials: Kharitonov's Theorem 124
5.2 Affine Coefficients: Edge Theorem 135
5.3 A Warning Example 140
5.4 Jacobi Conditions 142
5.5 The Mapping Theorem 147
5.6 Exercises 153
6 Value Set Construction 155
6.1 Sequential Set Operations 155
6.2 Simplification of Elementary Value Set Operations 157
6.3 Computer-Aided Execution of Value Set Operations 162
6.4 Color Coding of Value Sets 164
6.5 Tree Structured Decomposition 166
6.6 Animation of Value Sets 174
6.7 Exercises 176
7 The Stability Radius 178
7.1 Tsypkin-Polyak Loci 179
7.2 Affine Dependency: The Largest Hypersphere in Parameter Space 186
7.3 Polynomial Dependency 192
7.4 Exercises 198
III Robustness Analysis of Feedback Systems 201
8 Single-Loop Feedback Structures 203
8.1 Interval Plants with a Compensator 205
8.2 Positive Interval Plants with a Positive Compensator 211
8.3 Tree Structured Transfer Functions 216
8.4 Robustness with Respect to Sector Nonlinearities 226
8.5 Exercises 231
9 Gamma-Stability 234
9.1 Boundary Representation 234
9.2 Boundary Crossing 238
9.3 Algebraic Problem Formulation 238
9.4 Gamma-Stability Boundaries in Parameter Space 239
9.5 Value Sets for Gamma-Stability 245
9.6 Gamma-Stability Radius 248
9.7 Testing Sets 250
9.8 Exercises 253
10 Robustness of Sampled-Data Control Systems 255
10.1 Plant Discretization 256
10.2 Discrete-time Controllers 258
10.3 Eigenvalue Specifications 259
10.4 Classical Stability Tests 263
10.5 Testing Sets 276
10.6 Construction of Value Sets 280
10.7 Real Radius of Stability 280
10.8 Single-Loop Feedback Structures 280
10.9 Circle Stability 284
10.10Exercises 288
IV Some Design Tools for Robust Control Systems 291
11 Parameter Space Design 293
11.1 Introduction to Design by Simultaneous Gamma-Stabilization 293
11.2 Pole Region Assignment 295
11.3 Intersections in Controller Parameter Space 304
11.4 Selection of a Controller from the Admissible Set 310
11.5 Case Study: Automatic Steering of a Bus 318
11.6 Case Study: Flight Control 330
11.7 Exercises 338
12 Design by Optimizing a Vector Performance Index 340
12.1 Formulation of Design Specifications for a Finite Plant Family 341
12.2 Concept of the Design by Optimizing a Vector Performance Index 346
12.3 Case Study: Car Steering 356
V Appendix 369
A The Four-Wheel Car Steering Model 371
A.1 Single-Track Model 371
A.2 Linearized Single-Track Model 375
B Polynomials and Polynomial Equations 378
B.1 Polynomials in One Variable 378
B.2 Polynomials in Two Variables 381
B.3 Some Properties of Two-dimensional Curves 381
B.4 Two Polynomials in Two Variables 382
B.5 Several Polynomials in Several Variables 384
Bibliography 385
Index 398
Color plates 405
******************************************
* *
* Journals *
* *
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contributed by: Richard Brualdi
LINEAR ALGEBRA AND ITS APPLICATIONS, VOLUME 192
Preface 1
Wayne Barrett (Provo, Utah), Charles R. Johnson
(Williamsburg, Virginia), and Pablo Tarazaga (Mayaguez, Puerto Rico)
The Real Positive Definite Completion Problem for a
Simple Cycle 3
Don Coppersmith (Yorktown Heights, New York)
Solving Linear Equations Over GF(2): Block Lanczos Algorithm 33
Ludwig Elsner (Bielefeld, Germany), Daniel Hershkowitz
(Haifa, Israel), and Hans Schneider (Madison, Wisconsin)
Spectral Radii of Certain Iteration Matrices and Cycle
Means of Digraphs 61
Dennis R. Estes and Robert M. Guralnick (Los Angeles, California)
Minimal Polynomials of Integral Symmetric Matrices 83
Peter Fleischmann (Essen, Germany)
Connections Between the Algorithms of Berlekamp and
Niederreiter for Factoring Polynomials Over F*Dq 101
Schmuel Friedland (Chicago, Illinois)
Rational Orthogonal Similarity of Rational Symmetric Matrices 109
Holger W. Gollan (Essen, Germany)
Conjugacy Class Sums for Induced Modules: Construction
and Applications 115
George Havas (Queensland, Australia), Derek F. Holt
(Coventry, United Kingdom), and Sarah Rees
(Newcastle upon Tyne, United Kingdom)
Recognizing Badly Presented Z-Modules 137
Nicholas J. Higham and Philip A. Knight (Manchester, England)
Finite Precision Behavior of Stationary Iteration for
Solving Singular Systems 165
Victon Klee (Seattle, Washington), Balder Von Hohenbalken,
and Ted Lewis (Edmonton, Alberta, Canada)
On the Recognition of S-Systems 187
W. Lempken and R. Staszewski (Essen, Germany)
A Construction of 3McL and Some Representation Theory
in Characteristic 5 205
S. A. Linton (London, England)
On Vector Enumeration 235
Sean S. B. Moore, Dennis M. Healy, Jr., and
Daniel N. Rockmore (Hanover, New Hampshire)
Symmetry Stabilization for Fast Discrete Monomial
Transforms and Polynomial Evaluation 249
Harald Niederreiter (Vienna, Austria)
Factorization of Polynomials and Some Linear-Algebra
Problems Over Finite Fields 301
Barry W. Peyton (Oak Ridge, Tennessee), Alex Pothen
(Waterloo, Ontario, Canada), and Xiaoqing Yuan
(North York, Ontario, Canada)
Partitioning a Chordal Graph Into Transitive Subgraphs
for Parallel Sparse Triangular Solution 329
K. W. Roggenkamp (Stuttgart, Germany) and L. L. Scott
(Charlottesville, Virginia)
Automorphisms and Nonalbelian Cohomology: An Algorithm 355
List of All Speakers and Titles at the Conference
``Computational Linear Algebra in Algebraic and Related
Problems'' 383
Author Index 387
Contents
LINEAR ALGEBRA AND ITS APPLICATIONS, VOLUME 193
Eduardo Marques de Sa (Coimbra, Portugal) and Maria-Jose Sodupe (Bilbao,
Espana) Characterizations of *Orthant-Monotonic Norms 1
Gerhard Schmeisser (Erlangen, Germany)
A Real Symmetric Tridiagonal Matrix With a Given Characteristic
Polynomial 11
Dietrich von Rosen (Uppsala, Sweden)
Homogeneous Matrix Equations and Multivariate Linear Models 19
John A. Kaliski and Yinyu Ye (Iowa City, Iowa)
An Extension of the Potential Reduction Algorithm for Linear
Complementarity Problems With Some Priority Goals 35
Zinovy Reichstein (Berkeley, California)
On Automorphisms of Matrix Invariants Induced From the Trace Ring 51
Karla Rost (Chemnitz, Germany)
Generalized Lyapunov Equations, Matrices With Displacement
Structure, and Generalized Bezoutians 75
M. C. Gouveia (Coimbra, Portugal)
Generalized Invertibility of Hankel and Toeplitz Matrices 95
L. J. Landau and R. F. Streater (London, England)
On Birkhoff's Theorem for Doubly Stochastic Completely Positive
Maps of Matrix Algebras 107
Karlheinz Grochenig (Storrs, Connecticut)
A Discrete Theory of Irregular Sampling 129
Karla Rost (Chemnitz, Germany)
Generalized Companion Matrices and Matrix Representations for
Generalized Bezoutians 151
Vlad Ionescu and Martin Weiss (Bucharest, Romania)
Continuous and Discrete-Time Riccati Theory: A Popov-Function
Approach 173
R. Kit Kittappa (Millersville, Pennsylvania)
A Representation of the Solution of the nth Order Linear
Difference Equation With Variable Coefficients 211
Author Index 223
Contents
Special Issues in Progress
1. Proceedings of the Second Conference of the International Linear Algebra
Society at Lisbon; special editors are J. A. Dias da Silva, Chi-Kwong Li, and
Graciano de Oliveira. To appear as Volume 197, January 15, 1994.
2. Special Issue Honoring Ingram Olkin: special editors are Friedrich
Pukelsheim, George P. H. Styan, Henry Wolkowicz, and Ion Zaballa. To appear as
Volume 199, March 1, 1994.
3. Special Issue Honoring Marvin Marcus; special editors are Bryan E. Cain,
Moshe Goldberg, Robert Grone, and Nicholas J. Higham. Submission deadline:
December 31, 1992. Details in Volume 161, January 15, 1992.
4. Linear Systems and Control, Third Special Issue; special editors are A. C.
Antoulas, P. A. Fuhrmann, M. L. J. Hautus, and Y. Yamamoto. Submission
deadline: November 30, 1992. Details in Volumes 162-164, February 1992.
5. Special Issue Honoring Chandler Davis; special editors are Rajendra Bhatia,
Shmuel Friedland, and Peter Rosenthal. Submission deadline: March 31, 1993.
Details in Volume 169, May 1992.
6. Proceedings of the Third Conference of the International Linear Algebra
Society at Pensacola; special editors are Dianne P. O'Leary, Leiba Rodman, and
Helene Shapiro. Submission deadline: June 30, 1993. Details provided with the
conference announcement.
7. Proceedings of the conference ``Matrices and Graphs'' in honor of John
Maybee's 65th birthday, held at Boulder, Colorado, May 7, 8, 1993. Special
editors: C. R. Johnson and J. R. Lundgren. Submission deadline: August 31,
1993. Details provided with the conference announcement.
8. Fourth Special Issue on Linear Algebra and Statistics; special editors are
Jeffrey J. Hunter, Simo Puntanen, and George P. H. Styan. Submission deadline:
June 30, 1993. Details in Volume 177, December 1992.
9. Proceedings of the workshop ``Nonnegative Matrices, Applications and
Generalizations'' and the Eighth Haifa Matrix Theory conference held at Haifa,
Israel, May 31-June 4 and June 7-June 10, 1993, respectively. Special editors:
S. Friedland, D. Hershkowitz, and R. Loewy. Submission deadline: September 15,
1993. Details provided with the conference announcement.
10. Special Issue Honoring Miroslav Fiedler and Vlastimil Ptak; special
editors are Wayne Barrett, Angelika Bunse-Gerstner, and Nicholas Young.
Submission deadline: August 31, 1993. Details in Volume 179.
11. Proceedings of the Fourth Conference of the International Linear Algebra
Society at Rotterdam; special editors are Harm Bart, Ludwig Elsner, and Andre
Ran. Submission deadline November 30, 1994. Details provided with the
conference announcement.
12. Special issue honoring J. J. Seidel; special editors are Aart Blokhuis,
Willem H. Haemers and Alan J. Hoffman. Submission deadline: August 30, 1994.
Details in Volume 193, November 1, 1993.
Special issues are available to individuals at a reduced rate. For further
information, please contact Yusuf Guvenc, Journals Customer Service, Elsevier
Science Publishing Co., 655 Avenue of the Americas, New York, NY 10010; Tel.
212-633-3955; Fax 212-633-3990.
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contributed by: tate@siam.org
SIAM Review
Table of Contents, Vol. 35, No. 4, December 1993
Articles
On the Early History of the Singular Value Decomposition
G.W. Stewart
On the Stem Curve of a Tall Palm in a Strong Wind
Donald P. Winter
An Equilibrium Theory of Dislocation Continua
A.K. Head, S.D. Howison, J.R. Ockendon, and S.P. Tighe
Propagation of an Electromagnetic Field Through a Planar Slab
Harry E. Moses and Reese T. Prosser
Classroom Notes in Applied Mathematics
Problems and Solutions
Book Reviews
Chronicle
Author Index
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contributed by: H. Nijmeijer & A.J. van der Schaft
Special Issue, International Journal of
Robust and Nonlinear Control
``CONTROL OF NONLINEAR MECHANICAL SYSTEMS''
--
During the last two decades nonlinear systems and control theory
has witnessed a tremendous development. Key issues which have been
addressed include nonlinear controllability and observability,
nonlinear decoupling, feedback linearization, tracking and regulation,
feedback stabilization, nonlinear optimal control, and more recently
nonlinear adaptive and H-inf. control. The potential applicability
of this theory has already been demonstrated in various areas of
applications. Especially the area of control of mechanical systems
has proved to be excellent playground for modern nonlinear control theory.
Convincing examples include the control of wheel-controlled carts and
trailers (attitude) control of (interconnected) rigid bodies and the control
of robotic manipulators. Very interesting features of this area are
the interplay with mechanics together with its notions of stability,
symmetry, reduction, bifurcation etc., as well as the possibility for
physical interpretation of the obtained control laws. This latter fact
can hopefully contribute to bridging the gap with engineering practice.
The aim of this special issue is to promote and stimulate this rapidly
expanding area of research, and make it more accessible to a large
audience. Especially sollicited are papers which survey recent
developments, as well as papers devoted to fundamental research and
applications in this area.
Contributors should send their manuscripts of at most 25-30 pages
following the Journal-instructions directly to the Guest Editors:
H. Nijmeijer & A.J. van der Schaft
Department of Applied Mathematics
University of Twente
PO Box 217
7500 AE Enschede, The Netherlands
Fax: +31-53-340733
Time schedule:
Now: Call for papers
May 1, 1994: Deadline for submission
May-July 1994: Reviewing and Revisions
Estimated Publication date: January 1995.
Marja Langkamp
University of Twente,
Dept. Appl. Mathematics,
P.O. Box 217,
7500 AE ENSCHEDE.
The Netherlands.
Tel : +31 (53) 89 3370
Fax : +31 (53) 34 0733
E-mail : M.Langkamp@math.utwente.nl
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contributed by: tate@siam.org
Table of Contents
SIAM J. Math. Anal., January 1994, Vol. 25, No. 1
On Nonstationary Motion of a Compressible Barotropic Viscous Capillary Fluid
Bounded by a Free Surface
W.M. Zajaczkowski
Solutions for Two Dimensional System for Materials of Korteweg Type
Harumi Hattori and Dening Li
Instability of Planar Interfaces in Reaction Diffusion Systems
Masaharu Taniguchi and Yasumasa Nishiura
Tikhonov Regularization for Finitely and Infinitely Smoothing Operators
B.A. Mair
Regularizing Microscopes and Rivers
Marc Diener
A New Standard Isometry of Developable Surfaces in CAD/CAM
Erwin Kreyszig
Existence of a Homoclinic Orbit of the Lorenz System by Precise Shooting
Brian Hassard and Jianhe Zhang
The Addition Formula for Continuous q-Legendre Polynomials and Associated
Spherical Elements on the SU(2) Quantum Group Related to Askey-Wilson
Polynomials
H.T. Koelink
Basic Hypergeometric Functions and the Borel-Weil Construction for UQ(3)
M.A. Lohe and L.C. Biedenharn
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Contributed by: eleleeth@nusvm.bitnet
FINAL CALL FOR PAPERS
Journal of Systems Engineering
SPECIAL ISSUE ON MOTION CONTROL SYSTEMS
Papers are solicited for a special issue of the Journal of Systems
Engineering covering the multidisciplinary area of *Motion Control
Systems* to be published in September 1994. The special issue will cover
all aspects of motion control systems. Topics of special interest
include, but are not limited to, the following:
*Intelligent Motion and Motor Drive Systems
*Adaptation and Learning in Motion Systems
*Neural Networks, Fuzzy Systems and Expert Systems in Motion Control
*Intelligent Sensors and Actuators (for Motion Control)
*Motion and Force Control
*Other related topics in Robotics and Industrial Drives
Papers concerned with new developments in the above topics which are
supported by *both* theoretical analysis and real-time experimental
results are particularly encouraged. To be considered for the Special
Issue, prospective authors should submit 4 copies of their complete
manuscript by 15 December 1993 to the Guest Editor:
Dr. T. H. Lee
Guest Editor, Journal of Systems Engineering
Special Issue on Motion Control Systems
Department of Electrical Engineering
National University of Singapore
10 Kent Ridge Crescent, Singapore 0511
SINGAPORE
Detailed Instructions for Authors are available from:
Dr. T. H. Lee
E-mail: eleleeth@nusvm.bitnet
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* *
* Conferences *
* *
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contributed by: R. Ortega and R. Lozano
TUTORIAL WORKSHOP ON RECENT DEVELOPMENTS OF INPUT-OUTPUT
TECHNIQUES IN CONTROL THEORY
NOVEMBER 25-26, 1993
PARIS, FRANCE
This is a two day tutorial workshop aimed at providing researchers,
students and potential users of this theory with a tutorial account
of its latest developments. It will consist of four tutorial talks
of 4 hours with the following speakers and topics:
Robust Control of Linear Systems: An I/O Approach.
K. Poolla, (Univ. California, Berkeley)
Nonlinear State Space H-infinity Control Theory.
A. van der Schaft, (Univ. Twente)
Applications of Input-Output Techniques in Robotics,
Adaptive Control and Stabilization Problems.
R. Lozano and R. Ortega, (Univ. Compiegne)
Dissipative Dynamical Systems
D. Hill (Univ. of Newcastle)
The registration fee is 600FF, and includes the technical sessions
and one copy of the Workshop Proceedings.
Advance registration is possible sending a money order to:
Agent Comptable du CNRS-Lille,
33 Av Charles Saint Venant
59800 Lille, FRANCE
CCP Lille 20041 01005 0570535 S 02608.
For further information you may contact:
Romeo Ortega
Universite de Technologie de Compiegne
Genie Informatique
BP 649-60206, Compiegne, FRANCE
Tel: (33)44-23-44-79, FAX: (33)44-23-44-77
e-mail:rortega@hds.univ-compiegne.fr
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contributed by: flores@siam.org
Fifth SIAM Conference on Applied Linear Algebra
June 15-18, 1994
Snowbird Ski and Summer Resort
Snowbird, Utah
Organized by Society for Industrial and Applied Mathematics
Sponsored by SIAM Activity Group on Linear Algebra
The Call for Papers is on press now. To obtain a copy, or if
you wish to have the E-Mail version of it, contact SIAM now!
E-Mail: meetings@siam.org
Fax: 215-386-7999
Telephone: 215-382-9800, Extensions 331 and 332.
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contributed by: Juan A. de la Puente
__________________________________________________________________
| |
| 12th IFAC Workshop on |
| |
| DISTRIBUTED COMPUTER CONTROL SYSTEMS |
| |
| DCCS'94 |
| |
| Toledo, Spain, 28--30 September, 1994 |
| |
| FIRST ANNOUNCEMENT AND CALL FOR PAPERS |
| |
|________________________________________________________________|
SPONSORED BY:
International Federation of Automatic Control (IFAC), Technical Committee on
Computers.
INTERNATIONAL PROGRAMME COMMITTEE
Chair: Prof. M.G. Rodd
University of Wales, Swansea SA2 8PP
United Kingdom
E-mail: eerodd@pyr.swan.ac.uk
Members: A. Bondavalli (Italy) A. Burns (United Kingdom)
A. Crespo (Spain) F. Cristian (USA
F. DePaoli (Italy) M. A. Inamoto (Japan)
H. Kopetz (Austria) W.H. Kwon (Korea)
G. Le Lann (France) I. MacLeod (South Africa)
A. Mok (USA) L. Motus (Estonia)
S. Narita (Japan) D. Powell (France)
R. Puigjaner (Spain) K. Ramamrithan(USA)
R. Reyero (Spain) G. Suski (USA)
T. Williams (USA) G. Zhao (Singapore)
NATIONAL ORGANIZING COMMITTEE
General Chair: Prof. J.A. de la Puente
ETSI Telecomunicacion
Universidad Politecnica de Madrid
E-28040 Madrid, Spain
E-mail: jpuente@gic.tat.upm.es
Members: A. Alonso S. Dormido
A. Jimenez J.A. Cerrada
SCOPE
The Workshop will consist of formal presentations, discussion and
informal meetings covering recent advances and current issues in theory,
applications, and technology of distributed computer control systems.
The topics to be covered include, but are not restricted to:
* The role of real-time in DCSS specifications.
* Analysis and design methods for DCCS, including
software design methods for predictable behaviour.
* Scheduling methods for DCCS.
* Real-time distributed operating systems and databases.
* Real-time communication system architectures.
* Current and future impact of advanced computer system architectures.
* Testing and validation of DCCS, including timing properties.
* Dependability issues of DCCS.
* Industrial applications and experience with DCCS.
PARTICIPATION
Attendance will be limited by invitation to a maximum of 60 participants.
Preference will be given to those who submit abstracts or express
interest in organising specific sessions or panel discussions.
Participants are requested to register in advance not later than
30 June 1994.
LOCATION
Toledo is located 70 km south of Madrid. It can be easily reached by
train or motor car from Madrid.
LANGUAGE
English will be the working language for the workshop and will be used
for all printed material, presentations and discussions. No simultaneous
translation will be provided.
EXTENDED ABSTRACTS
Offers of papers are welcomed from individuals and groups on the topics
outlined above. Five copies of an extended abstract (1000--2000 words)
should be received by the workshop secretariat not later than 1 March
1994. Please include e-mail and fax number with the author's address.
The invitations to the Workshop will be based on the assessment of the
extended abstracts by the Programme Committee. The abstracts should
outline the contribution that the author intends to make at the
Workshop.
PAPERS
Full papers are to be prepared according to the instructions that will
be sent to the authors together with the letter of invitation.
Accepted papers must be presented in person at the Workshop.
Each registered participant will be provided with a copy of the preprint
volume including all accepted papers.
COPYRIGHT
The copyright of all accepted papers is automatically transferred to
IFAC. Papers published in IFAC preprint volumes will also be considered
for publication in the IFAC Journals Automatica and Control Engineering
Practice , which have priority access to all such material.
ORGANIZERS
DCCS'94 is an IFAC event organized by CEA-IFAC, the Spanish National
Member Organization of IFAC, with the support of:
Universidad Politecnica de Madrid.
Universidad Nacional de Educacion a Distancia.
Fundacion Universidad-Empresa.
Ada-Spain.
CORRESPONDENCE
All correspondence should be addressed to:
DCCS'94 Secretariat
Fundacion Universidad-Empresa
Serrano Jover, 5-7
E-28015 Madrid, Spain
Tel: +34 1 542 9003
Fax: +34 1 547 0652
E-mail: dccs94@gic.tat.upm.es
-----------------------------------------------------------------------------
IMPORTANT DATES
Extended abstracts due by ...................... 1 March 1994
Selection and invitation ....................... 15 May 1994
Registration ................................... 30 June 1994
Full papers due by ............................. 30 June 1994
Workshop ............................... 28--30 September 1994
-----------------------------------------------------------------------------
RELATED EVENT
The 2nd IFAC/IFIP/IMACS Symposium on Artificial Intelligence in Real
Time Control (AIRTC'94) will be held in Valencia, 3-5 October, 1994 .
==============================================================================
DCCS'94 Reply form
Please send this form before 1 March 1994
Name: ______________________________________ First name: ________________
Position: _______________________________________________________________
Organization: ___________________________________________________________
Address: ________________________________________________________________
________________________________________________________________
________________________________________________________________
Postal Code: ______________City: ________________________________________
Country: ________________________________________________________________
Fax: __________________________ Phone: _____________________________
E-mail: ________________________________________________________________
_
|_| I am planning to attend the DCCS'94 Workshop
|_| I intend to submit an abstract.
Preliminary title:
Date:
==============================================================================
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contributed by: Bruce Francis (francis@control.utoronto.ca)
Announcement of a conference entitled
FEEDBACK CONTROL, NONLINEAR SYSTEMS, AND COMPLEXITY
George Zames will turn 60 on January 7, 1994. To celebrate this event, we
are organizing a two-day conference with the above title, three themes on
which George has made fundamental contributions. The conference will be
held on Friday and Saturday, May 6 and 7, 1994, at McGill University in
Montreal. The general chair is Pierre Belanger and the local organizer
is Peter Caines. The conference is sponsored by the Natural Sciences and
Engineering Research Council and by the Canadian Institute for Advanced
Research.
The format is that there will be four half-day sessions, all plenary, by
invited distinguished researchers. There will be a banquet on the Saturday
evening. The following speakers are confirmed:
M. Athans S. Mitter
J. Baras A.S. Morse
R. Brockett J.B. Pearson
P. Caines K. Poolla
M.A. Dahleh M. Safonov
E.J. Davison M. Smith
J.C. Doyle E. Sontag
T. Georgiou L.Y. Wang
P.P. Khargonekar J.C. Willems
R.H. Kwong
The conference is open to anyone who would like to attend. Information
concerning hotels etc. will be announced at a later date.
If you wish to register for the conference, please contact either of us.
There is no registration fee.
Bruce Francis (francis@control.utoronto.ca)
Allen Tannenbaum (tannenba@ee.umn.edu)
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contributed by: Peter B. Luh,
Call for Papers
International Working Conference on Cooperating Knowledge Based Systems
Call for Papers
CKBS'94
International Working Conference on
COOPERATING KNOWLEDGE BASED SYSTEMS
June 15 - 17, 1994
University of Keele, England
Introduction
CKBS'94, the second International Working Conference on Cooperating
Knowledge Based Systems (CKBS) will be held, from June 15 to 17
(Wednesday to Friday) in 1994 at the University of Keele. A special
emphasis will be placed this year on a CKBS approach to intelligent
manufacturing systems, but papers from other areas are also invited.
The objective of the CKBS series of conferences is to bring the
researchers from Distributed Artificial Intelligence (DAI), Distributed
Databases (DDB) and industry together to discuss issues and solutions of
real-world problems that are inherently distributed. Such problems can
benefit from a CKBS type approach, which amalgamate ideas from DAI
and DDB for high-performance and robust solutions. Examples of
interesting application domains are: Intelligent Manufacturing Systems,
Air-traffic Control, Telecommunications Network Management,
Distributed Sensor Networks, Distributed Decision-making Systems,
Distributed Banking Systems, Distributed Office Procedures, Distributed
Fault Diagnosis.
CKBS'94 is the successor to CKBS'90 which was held at Keele in 1990,
and in which both DAI and DDB researchers participated. CKBS'90 was
considered by the attendees to be very successful and led to the
formation of the International Special Interest Group CKBS-SIG, which is
managed by the DAKE Centre at Keele.
Conference Themes
For CKBS'94, we have selected the application domain of intelligent
manufacturing systems (IMS) as a special theme, because of a growing
need for a CKBS approach in many areas of this field, such as agent-
based and flexible manufacturing, concurrent engineering design and
knowledge and systems integration for manufacturing. A number of
Programme Committee members are researchers in the IMS area. It is
hoped that the conference will provide a forum for the cross-
fertilisation of ideas leading to better solutions of CKBS problems in the
various branches of IMS and other application domains.
Finally, despite our special focus on research in intelligent
manufacturing systems, we invite papers from other application
domains as well. In fact we may run in the conference different
streams, one for the research related to intelligent manufacturing and
other(s) for the other domains, depending on the number of quality
papers received. If necessary, the conference could be extended to
Saturday, June 18.
Topics of Interest
We seek not only papers from completed research work, but also papers
on novel ideas even if the work is not yet complete. In addition, we
would also like to see papers describing industrial problems of interest.
It may be observed here that the CKBS research distinguishes itself
from the traditional multi-agent research by having a stronger
emphasis on real-world problems, where issues such as performance,
reliability, consistency, organisational constraints, security and end-user
facility are important. The conference wishes to address three
important (though not necessarily disjoint) areas which should comprise
the CKBS technology of the future: (i) techniques, (ii) applications, and
(iii) systems infrastructures - the latter providing the essential core
technologies for the support of CKBS applications and techniques. A
partial list of topics of interest to this conference is:
CKBS Techniques
* Agent Modelling
* Representations of Knowledge, Beliefs, Behaviours, Reasonings and Learning
* Planning, Task Decomposition and Scheduling
* Cooperation, Coordination and Negotiation
* Result Integration and Disparity Management
* Preferences and Constraints Propagation
* Coherence and Performance Optimisation
* Languages and Communications Protocols
Real-world Applications
* Application Requirements
* Experience with CKBS Applications
* Application Simulations
* CKBS Prototypes
* Imaginative Case Studies
* Cooperating and Active Databases
* Cooperative Transactions and User-interfaces
* Cooperative Concurrent Design
Infrastructures for CKBS Applications
* Generalised Models and Architectures
* Interoperable Environments
* Directory Systems, Knowledge Consistency and Systems Integrity
* Flexibility, Adaptability and Scalability
* Systems Resilience, Reliability and Recovery
* Systems Responsiveness and Reconfigurability
* Systems Development Methodology
* System Development Shells and Tools
Inclusion of topics in different areas is meant to give a flavour, but not
a definitive classification; also some topics can fit into more than one area.
Submission and Selection
The list of topics cited above is only a guide; your paper need not belong
to any of these topics, provided it falls in the general CKBS area
explained earlier. If you have any doubt, please contact the address
given below.
Please submit an extended abstract, not exceeding 2000 words, to reach
here by February 14, 1994. The abstract should include a
comprehensive summary of the intended full paper to help evaluation.
Email submission is preferred. If you intend to submit a poster on your
work or project, or if you wish to demonstrate your system, please
write to us (preferably by email), again by February 14. We shall make
the necessary arrangements for you.
As was in CKBS'90, papers will be accepted for presentation on the basis
of extended abstracts, and will be selected again (full papers) -
following their presentation at the conference - for publication as
proceedings. A special feature of the conference will be the extensive
discussion of ideas, for which specific time will be reserved for each
presentation. The authors will have a chance to revise their papers
before submission for the final selection, in the light of the comments
received during the conference.
Further Information
CKBS'94 will be a fully residential conference, as was CKBS'90, giving
greater opportunity for the delegates to get to know each other and
more time for discussion and the exchange of ideas.
Key Dates
* Abstracts (under 2000 words) by Feb 14, 1994.
* Intention for Posters and Demonstrators by Feb 14, 1994.
If you are interested to receive further information on this conference,
please contact:
Prof. S.M. Deen.
DAKE Centre (Department of Computer Science), University of Keele,
Keele, Staffs, ST5 5BG, England. Tel: +44 782 583076, Fax: +44 782 713082
Email: deen@cs.keele.ac.uk
Programme Committee
S. Misbah Deen [Chairman]
Mohamed M. Bayoumi (Canada) Cristiano Castelfranchi (Italy)
Sharma Chakravarthy (USA) Keith Clark (UK)
Daniel D. Corkill (USA) Rose Dieng (France)
Jim Doran (UK) Edmund H. Durfee (USA)
Kari-Pekka Estola (Finland) Brian Gaines (Canada)
David Griffiths (UK) Michael Hatzopoulos (Greece)
Hans Haugender (Germany) Michael N. Huhns (USA)
Ichiro Inasaki (Japan) Toru Ishida (Japan)
V. Jagannathan (USA) Paul Kearney (UK)
Larry Kerschberg (USA) Stefan Kirn (Germany)
Mark Klein (USA) Victor R. Lesser (USA)
Witold Litwin (France) Peter B. Luh (USA)
E. H. Mamdani (UK) Rainer Manthey (Germany)
Yoshio Matsumoto (Japan) Rainer Mittmann (Germany)
Heinz Jurgen Mueller (Germany) Erich J. Neuhold (Germany)
Douglas H. Norrie (Canada) H. Van Dyke Parunak (USA)
Charles Petrie (USA) Gunter Schlageter (Germany)
Pierre-Yves Schobbens (Belgium) Evangelos Simoudis (USA)
Munindar P. Singh (USA) Larry M. Stephens (USA)
Katia Sycara (USA) Makoto Takizawa (Japan)
Shinsuke Tamura (Japan) Edwin Van Leeuwen (Australia)
Sponsors
DTI (Department of Trade and Industry, UK)
CEC ESPRIT (anticipated)
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contributed by: wolfgang.halang@fernuni-hagen.de (Wolfgang Halang)
__________________________________________________________________
| |
| 19th IFAC/IFIP Workshop on |
| |
| REAL TIME PROGRAMMING |
| |
| WRTP'94 |
| |
| Isle of Reichenau, Lake Constance, Germany, 22--24 June 1994 |
| |
| |
| FIRST ANNOUNCEMENT AND CALL FOR PAPERS |
|________________________________________________________________|
SPONSOR
International Federation of Automatic Control (IFAC),
Technical Committee on Computers, Working Group on Real Time Programming
CO-SPONSOR
International Federation of Information Processing (IFIP),
Working Group 5.4 on Industrial Software Quality and Certification
INTERNATIONAL PROGRAMME COMMITTEE (IPC)
Chair: W.A. Halang
FernUniversitaet, Faculty of Electrical Engineering
D-58084 Hagen, Germany
Tel.: +49-2331-987-372
Fax: +49-2331-987-375
E-mail: wolfgang.halang@fernuni-hagen.de
Members: S. Bologna, I M. Colnaric, SLO
W. Ehrenberger, D C. Heitmeyer, USA
Ph. Laplante, USA H. Lawson, S
K. Man, HK L. Motus, Estonia
J. de la Puente, E M. Rodd, GB
W. Schaufelberger, CH H. Schweinzer, A
L. Simoncini, I J. Skubich, F
J. Szlanko, H T. Szmuc, PL
H. Wedde, D (Panel chair)
NATIONAL ORGANISING COMMITTEE (NOC)
Chair: K. Mangold, ATM Computer GmbH, Konstanz
Members: R. Henn H. Rzehak
Th. Tempelmeier H. Weber
KEYNOTE SPEAKER
A.D. Stoyenko, USA
SCOPE
The workshop will consist of formal presentations, discussions and
informal meetings covering recent advances and current issues in
theory, applications, and technology of real time programming. It
is to promote interaction among researchers and practitioners and
to evaluate the maturity of new directions in real time software.
The topics to be covered include, but are not restricted to:
* Advances in real time programming languages
* Requirements engineering methods for real time systems
* Software design methods for predictable behaviour
* Real time scheduling and resource management
* Real time operating systems
* Real time communication architectures, incl. MAP and Fieldbus
* Verification and validation, esp. of timing properties
* Dependability issues
* Industrial applications and experience
* Evaluation of current real time systems
* Real time (control) systems coping with challenging time constraints
EXTENDED ABSTRACTS
The submission of extended abstracts (800 -- 1200 words) is invited.
They should address the topics outlined above and focus on insights and
lessons gained from recent research and practical experience. Position
papers describing new ideas, promising approaches, and work in progress
are considered particularly appropriate. The abstracts should outline
the contribution that the author intends to make at the Workshop. The
submitted texts are to be sent by electronic mail in the form of plain
ASCII files, i.e., without any mark-up. If e-mail is not available,
plain ASCII files may be mailed on MS-DOS diskettes.
FULL-LENGTH PAPERS
The full papers have to be prepared according to the instructions
(using a certain LaTeX style and electronic submission) that will
be sent to the authors together with the notification of acceptance.
Accepted papers must be presented in person at the Workshop.
PROCEEDINGS
Hardbound proceedings will be published in advance by Pergamon Press
and provided to each registered participant at the workshop site.
The best papers will be selected for publication in a special issue
of the new IFAC journal "Control Engineering Practice". The copyright
of all accepted papers is automatically transferred to IFAC.
PARTICIPATION
Attendance will be limited to approx. 60 active workers in the field.
Participants are requested to register in advance not later than
28 February 1994.
LOCATION
The Reichenau is an island in Lake Constance, the latter being shared by
Austria, Germany and Switzerland. The island can easily be reached by
frequent boat services from Konstanz, which is also the closest major
train station. The most conveniently located and nearest international
airport is Zurich. There are frequent train departures from the station
located in the airport to Konstanz.
LANGUAGE
English will be the working language of the workshop and will
be used for the proceedings, the presentations and discussions.
No simultaneous translation will be provided.
CORRESPONDENCE
All correspondence should be addressed to the IPC chairman.
Electronic mail should be used whenever possible.
IMPORTANT DATES
Extended abstracts due by ................... 31 December 1993
Notification of acceptance ................... 31 January 1994
Registration ................................ 28 February 1994
Full papers due by ............................. 15 March 1994
Workshop .................................... 22--24 June 1994
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contributed by: JULIA@onr-hq.navy.mil
*** CALL FOR PAPERS ***
Data Compression Conference (DCC '94)
(Sponsored by the IEEE Computer Society TCCC
in Cooperation with NASA/CESDIS)
Snowbird, Utah
March 29 - 31, 1994
GENERAL CHAIR: J. Storer, Brandeis U.
PROGRAM CHAIR: M. Cohn, Brandeis U.
PUBLICITY CHAIR: R. Miller, NASA
PROGRAM COMMITTEE:
A. Apostolico, Purdue/Padova
J. Abrahams, ONR
R. Arps, IBM
R. Baker, PictureTel Inc.
A. Bookstein, U. Chicago
M. Cohn, Brandeis U.
R. Gray, Stanford U.
D. Hirschberg, UC Irvine
G. Langdon, UC Santa Cruz
A. Lempel, Technion
B. Lucier, Purdue U.
J. Reif, Duke U.
D. Renner, TRW
E. Riskin, U. Washington
K. Rose, UCSB
D. Sheinwald, IBM
J. Storer, Brandeis U.
J. Tilton, NASA
M. Vetterli, UC Berkeley
J. Vitter, Duke U.
I. Witten, U. Waikato
X. Wu, U. W. Ontario
J. Ziv, Technion
THEME: An international forum for current work on data compression and
related areas. Topics of interest include but are not limited to: Coding
theory, quantization theory, parallel compression algorithms and hardware,
lossless and lossy compression algorithms for specific types of data
(including text, images, video, speech, music, maps, instrument data,
graphics, animation, and bit-maps), data compression standards, bi-level
coding, transform methods, wavelet and fractal techniques, string searching
and manipulation, closest-match retrieval, theory of minimal length encoding
and applications to learning, system issues relating to data compression
(including error control, data security, and indexing), medical imagery,
scientific and space data.
SUBMISSION: Authors are requested to send by mail (NOT fax or email) four
copies of an extended abstract of 8 to 10 pages (please include your
affiliation, address, phone number, fax number, and email address) by
November 15, 1993 to:
Prof. Martin Cohn
Computer Science Department
Brandeis University
Waltham, MA 02254
(phone: 617-736-2705, email: marty@cs.brandeis.edu)
NOTIFICATION: Authors will be notified of acceptance or rejection via email
(or fax if necessary) on 12/15/93. A final camera-ready draft is due 1/14/94.
ADVANCE REGISTRATION: Includes registration reception (Monday evening),
poster session reception (Wednesday afternoon), coffee breaks, and
proceedings. The fee is $325 for IEEE or affiliate members, $395 for
non-members, and $250 for students (ID's will be required); there is an
additional $100 late fee for all registrations after 2/15/94. For additional
information, call Myrna Fox, 617-736-2700.
HOTEL: Special air fares are available from Delta Airlines; call 800-241-6760
(File. No. HO562). May be reached by taxi, limousine, or public bus from the
Salt Lake City Airport. Space is limited; rooms may NOT be available after
2/1/94. Rooms are $46 per person double and $91 single; student dorm rooms
are $25 per person. Call the Cliff Lodge, Snowbird, UT 84092, 800-453-3000
or 801-742-2222.
WORKSHOPS: An industrial applications workshop will be held on Friday
(contact Rob Renner, 310-812-4868, renner@spf.trw.com) and a NASA workshop
will be held on Saturday (contact Jim Tilton, 301-286-9510,
tilton@chrpisis.gsfc.nasa.gov).
_______________________________________________________________________
DCC REGISTRATION FORM
NAME:
AFFILIATION:
ADDRESS:
PHONE:
EMAIL:
IEEE MEMBER: NO___ YES___ (membership no. ____________)
STUDENT: NO___ YES ___ (ID's will be required at registration)
AMOUNT ENCLOSED:
MAIL TO: DCC Regisatration
Computer Science Dept.
Brandeis University
Waltham, MA 02254
Payment is non-refundable and must be a check to DCC that is
IN U.S. DOLLARS AND DRAWN ON A U.S. BANK.
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contributed by: Floyd B. Hanson
Conference on Control and Information
Beijing
Summer 1995
Preliminary Announcement
We are writing to solicit your support for the Conference on Control and
Information to be held in Beijing, People's Republic of China during the
summer of 1995, tentatively during the first week of June 1995, or soon
after. This conference will be jointly organized with the Institute of
Systems Science, Academia Sinica. The theme of the conference will cover
a wide spectrum of topics in following main areas:
Automatic Control
System Theory
Information Theory
Some particular suggested areas include
Adaptive Control, Advanced Methods for Control, Algebraic-Geometric
Methods for Control, Biomedical Control, Communication Network Control,
Fuzzy Logic Control, Optimal Filtering, Nonlinear Filtering, H-infinity
Control, Intelligent Control, Parallel Computational Control, Robotics,
Robust Control, Stochastic Control.
Expert Systems, Failure Detection and Diagnosis, Distributed Systems,
Hybrid Systems, Hierarchical Systems, Genetic Algorithms, Intelligent
Systems, System Identification.
Signal Processing, Data Compression, Information Network Analysis,
Neural Networks, Performance Evaluation, Wavelet Analysis.
Applications: Aerospace, Industrial and Manufacturing, Marine Navigation,
Multimedia Communications, Satellite Communications, Telecommunications,
Transportation, Image Denoising.
We hope to obtain co-sponsorship of the conference by the IEEE, along with
support from other agencies. We would like to request your support for our
efforts, stimulate your interest in participating and give you sufficient
time for long range planning.
Please contact one of the organizers for further information or for passing
along suggestions for the conference.
Stephen S. Yau, University of Illinois at Chicago, Stephen.S.Yau@uic.edu
Wing S. Wong, Chinese University of Hong Kong, wswong@ie.cuhk.hk
(formerly at AT&T Bell Labs, New Jersey)
Allen R. Tannenbaum, University of Minnesota, tannenba@ee.umn.edu
John Baillieul, Boston University, johnb@buenga.bu.edu
Enping Wang, Institute of System Science, Academia Sinica, PRC
Lei Guo, Institute of System Science, Academia Sinica, PRC
Floyd B. Hanson, University of Illinois at Chicago, hanson@math.uic.edu
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contributed by: B. Ross Barmish
Christopher V. Hollot
Roberto Tempo
TUTORIAL WORKSHOP
ROBUSTNESS OF SYSTEMS WITH REAL PARAMETRIC UNCERTAINTY
by
B. Ross Barmish, University of Wisconsin-Madison
Christopher V. Hollot, University of Massachusetts-Amherst
Roberto Tempo, Politecnico di Torino, Italy
1993 IEEE Conference on Decision and Control
San Antonio, Texas
Monday and Tuesday, December 13--14, 1993
This workshop has two primary objectives. The first is to overview
a number of developments in the robust control area which were sparked by
Kharitonov's four polynomial result. The second objective is to explain
these results within the unified framework of value sets. One of the
highlights of the workshop will be ``extreme point results'' for stability
analysis of control systems. That is, we give conditions under which one can
infer that various performance specifications are robustly satisfied by
checking if they are satisfied on a distinguished subset of ``extreme
systems.''
Workshop Schedule
Monday
8:00 - 8:30 Preliminaries: Models and Parametric Uncertainty
8:30 - 9:00 Uncertainty Structures and Robustness
9:00 - 10:00 Robust Stability with a Single Parameter
10:00 - 11:00 Kharitonov's Theorem
11:00 - 12:00 Embellishments of Kharitonov's Theorem
12:00 - 2:00 Lunch
2:00 - 3:00 The Value Set Concept
3:00 - 4:00 Affine Linear Uncertainty Structures
4:00 - 5:00 The Edge Theorem
5:00 - 6:00 The Convex Direction Theorem
Tuesday
8:00 - 9:00 Schur Stability and Kharitonov Regions
9:00 - 10:00 Spherical Polynomial Families
10:00 - 11:00 Multilinear Uncertainty - Interval Matrices
11:00 - 12:00 The Spectral Set and the Robust Root Locus
12:00 - 2:00 Lunch
2:00 - 3:00 Robust Stabilization with First Order Compensators
3:00 - 4:00 Robust Gain and Phase Margins
4:00 - 5:00 Parametric H-infinity and SPR Problems
5:00 - 6:00 Concluding Remarks and Discussion
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* THE END *
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