E-LETTER on Systems, Control, and Signal Processing
ISSUE No. 92, April 1, 1996
E-LETTER on Systems, Control, and Signal Processing
ISSUE No. 92, April 1, 1996
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 40 246 5995
Siep Weiland
Dept. of Electrical Engineering
Eindhoven University of Technology
P.O. Box 513
5600 MB Eindhoven
the Netherlands
Fax +31 40 243 4582
Contents
1. Editorial
2. Personals
3. General announcements
3.1 cGOP - A New Package for Global Optimization
3.2 First version of DAREX available
3.3. SCAD update
4. Positions
4.1 Faculty position Ohio University, Athens, Ohio
4.2 Faculty positions Drexel University
4.3 Research positions at Westminster University, London
4.4 Faculty position Texas A&M University, College Station
4.5 Research studentship vacancies, Leicester University
4.6 Lectureship in engineering, Leicester University
4.7 Postdoctoral position Delft University of Technology
4.8 Postdoctoral position University of Michigan
4.9 Postdoctoral position Chinese University of Hong-Kong
4.10 Postdoctoral position University of Dortmund
4.11 Postgraduate scholarships available University of Glasgow
4.12 Job opportunity at Scientific Systems
4.13 Research fellowship available University of Melbourne
5. Books
5.1 "Force & Touch Feedback for Virtual Reality" -Grigore C. Burdea
5.2 "Mathematical Theory of Control Systems Design" - V.N.
Afanasiev, V. Kolmanovskii and V.R. Nosov
6. Journals
6.1 Electronic submission SIAM Journal on Optimization
6.2 Electronic services LAA
6.3 Electronic services Journal of Dynamical and Control Systems
6.4 TOC IEEE Transactions on Automatic Control, vol. 41:4
6.5 TOC LAA, vol. 237/238
6.6 TOC SIAM Journal on Control & Optimization, vol. 34:3
6.7 TOC SIAM Journal on Matrix Analysis and Applications. vol. 17:2
6.8 TOC Automatica, vol. 32:4
6.9 TOC Journal of Dynamical and Control Systems, vol. 2:1
6.10 TOC Circuits, Systems and Signal Processing, vol. 15:2
6.11 CfP Journal of the Franklin Institute
7. Conferences
7.1 SIAM Conference on Sparse Matrices, Coeur d'Alene, Idaho
7.2 Neural Adaptive Control Technology Workshop, Berlin
7.3 Workshop on TLS and Errors in Variables Modeling, Leuven
7.4 Workshop on Current and Future Directions in Applied Mathematics
7.5 CFP Colombian Assoc. of Automatic Control Congress
7.6 CFP Intl. Conference on Automatics and Informatics, Sofia
7.7 CFP Chinese World Congress on Intelligent Control and Automation
7.8 Workshop on Flatness of Non-linear Systems
7.9 Workshop on Foundations of Information/Decision Fusion
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Contributed by: Vishy Visweswaran
cGOP -- A NEW PACKAGE FOR GLOBAL OPTIMIZATION
We are pleased to announce the availability of cGOP, a new software
package for solving structured global optimization problems. A description
of the package follows, along with instructions on how to retrieve, install
and use the package.
Dr. V. Visweswaran (Email: vishy@titan.princeton.edu)
Professor C. A. Floudas (Email: floudas@titan.princeton.edu)
Computer-Aided Systems Laboratory (WWW: http://titan.princeton.edu)
Department of Chemical Engineering
Princeton, NJ 08544
DESCRIPTION OF THE PACKAGE:
--------------------------
cGOP is a package for rigorously solving nonconvex optimization
problems to epsilon-global optimality. The package implements the GOP
algorithm (Floudas and Visweswaran, 1993) which is a primal-dual
decomposition algorithm appli- cable to general constrained biconvex
problems, using a set of C subroutines to solve these problems using
decomposition and branch-and-bound techniques. It also incorporates
several improvements made to the original GOP algorithm to reduce the
computational complexity (Visweswaran and Floudas, 1993) as well as
new formulations that permit implicit solutions of some of the
subproblems encountered during the algorithmic steps (Visweswaran and
Floudas, 1996). The algorithms use local optimization solvers
(currently MINOS 5.4 and CPLEX 3.0) to solve linear, mixed-integer
linear and convex subproblems. This version of the cGOP package is a
beta-test version, and can be used to solve problems with linear
constraints. Problems can be specified using data files written in a
high-level parsed language that permits their solution without
re-compi- lation, and also using fixed-format data files. In addition,
the package can be used via calls to C subroutines. cGOP has been in
use at the Computer-Aided Systems Laboratory in Princeton University
for the last two years, and has been used to solve problems involving
several hundred variables and constraints. Currently, versions are
available for Hewlett-Packard, Silicon Graphics and IBM RS6000 machine
architectures.
This is a beta-test version of the software, and is being released for
use by academic researchers. A full version with the ability to solve
nonlinearly constrained problems will be made available in the future.
Commercial sites wishing to use this product should contact one of the
authors directly.
HOW TO OBTAIN THE SOFTWARE:
--------------------------
The cGOP package is available through anonymous FTP from
titan.princeton.edu. To retrieve the current version, perform the
following steps:
(1) Login in via anonymous ftp to titan.princeton.edu, using the user name
"anonymous" and giving your email address as the password.
The package is located in "pub/cGOP", and has three components -
(a) cGOP.tar.Z, which contains the main libraries and examples,
(b) cGOPdoc.ps.Z, which contains documentation for cGOP, and
(c) cparsedoc.ps.Z, documentation for cparse, a high level parser that
can be used to enter the problems for cGOP in an easy format.
Make sure to set file type to binary before retrieving the files.
Below, we show a sample session of using anonymous ftp:
unix> ftp titan.princeton.edu
Name: anonymous
Password: yourname@yourmachine.yourdomain
ftp> cd pub/cGOP
ftp> type binary
ftp> get cGOP.tar.Z
ftp> get cGOPdoc.ps.Z
ftp> get cparsedoc.ps.Z
ftp> quit
unix>
(2) Select a directory where you want to store the distribution. Go to
that directory, then:
prompt> uncompress cGOP.tar.Z
prompt> tar -xf cGOP.tar
This will create a subdirectory called "Gop" under the current directory,
and put the distribution there.
(3) Uncompress and print out the manuals, cGOPdoc.ps and cparsedoc.ps. These
contain full instructions for installing and using cGOP and the parser.
(4) Look at the directories "cparse", "examples" and "callable". These
contain example files that show how cGOP can be used through data files
or using calls to C subroutines.
(5) If you do retrieve the package, please send us an e-mail at
cgop@titan.princeton.edu with a brief description of the machine
you intend to run it on. This will help us to keep you informed of
updates, bug fixes etc.
If you have any difficulty getting the files, please send us an e-mail
at cgop@titan.princeton.edu and we will be happy to assist you in obtaining
the software.
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Contributed by: Peter Benner (benner@mathematik.tu-chemnitz.de)
FIRST VERSION OF DAREX AVAILABLE
DAREX is a collection of benchmark examples for the numerical solution
of discrete-time algebraic Riccati equations (DARE) of the form
T T T -1 T T
0 = A X A - X - (A X B + S) (R + B X B) (B X A + S ) + Q
where A, Q, X are n-by-n matrices, B, S are n-by-m matrices, and R is
an m-by-m matrix. Here, Q, R are symmetric and X is the desired
symmetric solution matrix. The matrix Q can be given in factored form
as it often occurs in control theory, i.e.,
T
Q = C Q0 C.
This collection may serve for testing purposes in the construction of
new numerical methods, but may also be used as a reference set for the
comparison of methods.
The examples can be generated via a Fortran 77 subroutine or a MATLAB
function. A postscript version of a preprint describing the benchmark
collection as well as the software is available by anonymous FTP at
ftp.tu-chemnitz.de
from the directory
/pub/Local/mathematik/Benner
The (compressed) files are
blm2.ps.Z
darex_f.tar.Z
darex_m.tar.Z
Here, blm2.ps.Z is a compressed postscript version of the
abovementioned preprint and the tar files darex_f.tar, darex_m.tar,
respectively, contain directories with the subroutines, functions,
and data files necessary to generate the benchmark examples. Both
directories also contain introductory README files.
The MATLAB codes are also available via anonymous ftp from the
MathWorks ftp site (ftp.mathworks.com). The M-files, data files, and
the README file are located in
pub/contrib/control/darex
The Fortran 77 codes are available via anonymous ftp from Netlib
(e.g., netlib.att.com, elib.zib-berlin.de). The file darex_f.tar.gz
can be found in the directory
netlib/control
Since this is an on-going project, we will greatly appreciate further
contributions of examples concerning the abovementioned DARE as well
as continuous-time and generalized AREs.
Authors: P. Benner, A.J. Laub, V. Mehrmann
If you have any comments or suggestions, or if further information is
required, please send an e-mail message to
benner@mathematik.tu-chemnitz.de
Peter Benner
Fakultaet fuer Mathematik
TU Chemnitz-Zwickau
09107 Chemnitz, Germany
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Contributed by Raimund J. Ober
Xu Huang
UPDATE ON SCAD DATABASE -- March 1996
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Systems and Control Archive at Dallas
Worldwide web: URL: http://scad.utdallas.edu/scad/
queries (email): scad@utdallas.edu
New contents:
=============
Eletters: Number 91
=========
Journals:
========
We now also include contents pages of the journals
European Control Journal (EJC),
Journal of Dynamic Systems, Measurement and Control,
Modeling, Identification and Control (MIC).
Systems and Control Groups worldwide:
====================================
Idaho State University;
Measurement and Control Engineering Research Center
SCAD ADDRESS LIST:
==================
Recently we have started an address list for systems
and control people.
More than 650 people have added their addresses to the list.
To register your, simply:
- go to SCAD using the web
- go to the ADDRESS LIST link
- click: add your address
- fill in the form.
You can check out addresses by using the search facility or
by scanning through the full list.
!!!!!!!!!!! PLEASE, Add your Address to the SCAD ADDRESS LIST !!!!!!!!!!!
**********************************************************************
How to access scad:
===================
Using Worldwide Web:
URL: http://scad.utdallas.edu/scad/
More detailed instructions can be obtained by sending an email to
scad@utdallas.edu
After accessing SCAD you can find a README file which contains
more information about SCAD.
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Contributed by: Douglas A. Lawrence (dal@bobcat.ent.ohiou.edu)
FACULTY POSITION
Department of Mechanical Engineering
Ohio University
Athens, Ohio
A tenure-track position at the Assistant/Associate Professor level is
available beginning September 1, 1996. Teaching and research duties are
in the area of dynamics and control of machines and/or structures.
A Ph.D. in mechanical engineering or a closely related field is required.
Industrial experience is desired. Specialization in mechatronics or vehicle
dynamics is of particular interest. The successful candidate is
expected to develop cross-disciplinary collaboration. Outstanding support
is available for research initiation. Applications will be accepted
until April 30, 1996, or until the position is filled. Send a letter
of application, including visa/citizenship status, a resume, and three
references to:
Dr. Jay S. Gunasekera, Chair
Department of Mechanical Engineering
251 Stocker Center
Ohio University
Athens, OH 45701-2979
No electronic submissions will be accepted. Ohio University is an
Affirmative Action / Equal Opportunity Employer.
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Contributed by: Moshe Kam
FACULTY POSITIONS IN ELECTRICAL AND COMPUTER ENGINEERING
DREXEL UNIVERSITY anticipates several new faculty positions in Electrical
and Computer Engineering. At present we are primarily interested in
candidates for assistant professor tenure-track appointments in the following
areas:
(i) telecommunications, wireless and mobile radio (with background
in system theory);
(ii) computer engineering (especially computer architecture and
networking); and
(iii) power engineering (system theory, power electronics, machinery).
However, exceptional candidates in other areas and ranks will also be
considered. A Ph.D. or equivalent in Electrical Engineering, Computer
Engineering or related disciplines is required, as well as a record of
scholarly research and professional development. Background in Biomedical
applications will be considered an advantage. The department has initiated
a pioneering project in undergraduate-education reform, and future professors
will be expected to take part in curriculum development and innovative
education. Drexel University is private non-denominational co-ed techno-
logical University located in University City, Philadelphia. With 32 tenure-
track faculty, 800 undergraduates, and 300 graduate students, the ECE
Department is the largest department in the University, expending $5M per
year on research. The department's strengths are in signal and image
processing, signal processing for biomedical applications, microwave and
lightwave engineering, electrophysics, power systems, detection and
estimation, dynamic systems and intelligent control (sensor fusion, robotics
and neural networks).
Submit a resume, list of major publications, and the names of three
references
to: Dr. Nihat Bilgutay, Department Head, ECE Department, Drexel University,
Philadelphia, PA 19104. Non-US citizens are requested to indicate visa
status. Drexel University is an equal opportunity/affirmative action
employer
and educator - we welcome applications from members of groups
underrepresented
in Engineering.
Moshe Kam
ECE Department
Drexel University
Philadelphia, PA 19104
215 895 6920
FAX 215 895 1695
kam@lorelei.ece.drexel.edu
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Contributed by: Professor J.R Leigh
THE UNIVERSITY OF WESTMINSTER
Faculty of Engineering and Science
Research Studentships in the Industrial Control Centre
The Industrial Control Centre (ICC) as part of its
programme of research for industry works on modelling,
diagnosis and control, and development of software
solutions for industrial control problems. We are
inviting applications for two three-year CASE
(Collaborative Awards in Science and Engineering) Research
Studentships to join projects arranged jointly by the
Centre and industrial partners:
(1) CASE Student to work with an industrial partner on
the analysis of complex data arising from
bioprocess industries. The task is to develop and
demonstrate AI tools for the extraction of valuable
information from large and complex data sets. This
position at this company requires a strong control,
maths or computer science background. The supporting
company is one of ICC's internationally known
collaborators in this field. The annual grant is 8,710
pounds sterling plus an annual increment of 400 pounds
sterling from the EPSRC and a minimum of 2200 pounds
sterling top up from industry The start date is 1st
May 1996.
(2) CASE Student with Omron Electronics Ltd to work on
developments in servomechanism design. The principal
research task is to develop methods to improve the
speed and accuracy of tracking servomechanisms in
collaboration with Omron. The annual grant is 8,710
pounds sterling plus an increment of 400 pounds
sterling p.a. from the EPSRC and 4,500 pounds
sterling top up from Omron. Omron is a very large
investor in control-oriented R&D. The company has
indicated the expectation that the successful candidate
will spend a period at overseas sites including Omron's
Japanese HQ. The start date is July - October 1996.
Applicants for these posts must have a first or upper
second honours degree, or a lower second class honours
degree and MSc degree in a control-related discipline.
EPSRC regulations require that CASE Students must be UK
nationals in order to receive full grant support. The
successful applicants will register for a three year
research programme leading to a PhD degree.
Letters of application should include a CV with the
following details:
(a) Undergraduate studies with details of final year
topics studied including project.
(b) Undergraduate degree classification.
(c) Industrial experience (if any).
(d) Postgraduate courses (if any).
(e) Date when you would be free to start.
(f) Nationality/residence information relevant to your
eligibility to receive the award.
(g) Names of two referees.
PLEASE SEND YOUR APPLICATION A.S.A.P. TO :
Professor J R Leigh, Director
The Industrial Control Centre
University of Westminster
115 New Cavendish Street
London W1M 8JS.
Fax : 0171-911 5150, Tel : 0171-911-5178
E-mail : leigh@westminster.ac.uk
Closing date for receipt of applications is 20th April 1996.
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UNIVERSITY OF WESTMINSTER
Faculty of Engineering and Science
Research Positions in Industrial Control Centre
The Industrial Control Centre as part of its programme of research
for industry has the following vacancies:
(1) Research Assistant in Control Engineering to work on the
development of a DTI-funded project on supervisory control and
scheduling system for implementation and evaluation at a large
biochemical plant. This position requires a strong control and
computing background and ability to support developments in advanced
modelling, control and AI techniques. A good first degree preferably
including or followed by demonstrable success in projects is required.
It is expected that a Research Assistant will register for a higher
degree. Salary: 11,388 pounds sterling p.a.
(2) Research Fellow to work on the development of a DTI-funded
project on supervisory control and scheduling system for
implementation and evaluation at a large biochemical plant. This post
requires a good first degree with significant demonstrable expertise
(probably necessitating a higher degree) in modelling, control and AI
techniques. Salary: 15,760 pounds sterling p.a.
All salaries quoted include 1926 pounds sterling London Allowance.
Informal enquiries may be made to:
Professor J R Leigh, Director
The Industrial Control Centre
University of Westminster
115 New Cavendish Street
London W1M 8JS. Fax : 071-911 5150, Tel : 071-911-5178
E-mail : leigh@westminster.ac.uk
For an application form and further details send an
A4 sized stamped, self-addressed envelope clearly
marked with the appropriate reference number to the
Personnel Department, Recruitment Section, 115 New
Cavendish Street, London W1M 8JS. Closing Date for
receipt of applications is 20th April 1996.
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UNIVERSITY OF WESTMINSTER
Faculty of Engineering and Science
Research Positions in Industrial Control Centre
The Industrial Control Centre as part of its programme
of research for industry has the following vacancies:
(1) Research Fellow in Control Engineering to work on
the development and delivery of an industry-based MSc
course and to carry out research in control. The main task
is to co-ordinate the development and, later, the delivery
of a highly-focused modular Masters' Degree in Industrial
control systems. The course is distinctive in its aim to
appeal to practising engineers attending in intensive
short-course mode and in its inclusion of significant
hands-on sessions that need to be developed. Secondary but
important further tasks are to develop and publish at a
high scientific level along a particular specialisation
within the control field and to interact with and assist
the progress of more junior researchers within the
Industrial Control Centre. Applicants should hold, or
about to obtain, a PhD in control engineering and have
demonstrable expertise in non-linear control theory and
its industrial applications as well as strong commitment
to developing an innovative research programme. Applicants
will need to have demonstrable excellence and enthusiasms
in a relevant specialisation in the control field and an
ability to communicate these enthusiasms to the industrial
engineers who are our MSc students. Such profile would
normally imply a background of a completed doctorate, some
publications and some industrial experience. The start
date is 1st May 1996. Salary: 15,760 pounds sterling p.a.
(2) Senior Research Fellow to develop bids for EC
and national funding sources, lead funded projects,
and assist the Director in the day-to-day management of
the centre's other technical activities. Applicants will
need to possess wide technical knowledge allied with
organisational abilities, a determination to meet
deadlines and an ability to overview and prioritise a
complex set of competing tasks. It is likely that such
applicants will have a doctorate in any of the following
fields: software, communications, transport and control,
engineering plus some experience of dealing with the
nuances of grant application. The post is not though
exclusively administrative and applicants should have
their own research specialism which should be
complementary to the research themes of the ICC. The
start date is 1st May 1996. Salary: 16,481-23,034 pounds
sterling p.a. depending on ability and experience
All salaries quoted include 1926 pounds sterling
London Allowance.
Informal enquiries may be made to:
Professor J R Leigh, Director
The Industrial Control Centre
University of Westminster
115 New Cavendish Street
London W1M 8JS.
Fax : 071-911 5150, Tel : 071-911-5178
E-mail : leigh@westminster.ac.uk
For an application form and further details send an A4
sized stamped, self-addressed envelope clearly marked
with the appropriate reference number to the Personnel
Department, Recruitment Section, 115 New Cavendish Street,
London W1M 8JS. Closing Date for receipt of applications is
20th April 1996.
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Contributed by: Suhada Jayasuriya(s0j8248@acs.tamu.edu)
FACULTY POSITION
Department of Mechanical Engineering
Texas A&M University
College Station, Texas
Department of Mechanical Engineering invites applications for
Assistant/Associate/Full Professor positions, to start in the Fall of
1996, in the general area of Dynamic Systems and Control. The
successful candidates must have demonstrated scholarly research
accomplishments in at least one area of recent advances in control
theory or nonlinear dynamical systems, and expertise in application of
active control methodologies in one or more of the following areas:
acoustics and active noise control, fluid-structure interaction
problems, combustion, active control of continua, and manufacturing.
Some working knowledge of Mechatronics is desirable. Send a complete
resume and a list of five references complete with addresses and phone
numbers to:
Professor G. P. Peterson, Head
Department of Mechanical Engineering
Texas A&M University
College Station, TX 77843-3123.
The deadline for the receipt of applications is June 21, 1996.
No electronic submissions will be accepted. Texas A&M University is an
Affirmative Action / Equal Opportunity Employer.
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Contributed by: Dr S K Spurgeon
Research Studentship Vacancies
The Control Systems Research Group at Leicester University
is developing several avenues of research in the general
field of robust control and has available up to four studentships to
support projects in the areas of nonlinear control, gain scheduling,
reliable implementation, optimal control and numerical algorithms
including genetic algorithms and simulated annealing.
Further details and application forms are available from:
Mrs Lesley Dexter,
Postgraduate Secretary, Department of Engineering, University of
Leicester, University Road, Leicester LE1 7RH
Tel: 0116-252-2547 Fax: 0116-252-2619 Email: lfd1@leicester.ac.uk
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Contributed by: Professor I Postlethwaite, Head of Department
LECTURESHIP IN ENGINEERING
(Control Systems Research)
Applications are invited for a Lectureship in Engineering. This post is
tenable for a period of four years from 1 October 1996.
Applicants should be good honours graduates and have a PhD in Control
Engineering. The successful candidate will join the Control Systems Research
Group lead by Professor Ian Postlethwaite and will be expected to teach on
the MSc in Systems Engineering as well as contributing to the undergraduate
courses in Engineering.
Initial salary, dependent on qualifications and experience, will be on the
Lecturer A scale - #15,154 to #19,848 per annum.
Further particulars and an application form are available from the Personnel
& Planning Office (Academic Appointments), University of Leicester,
University
Road, Leicester LE1 7RH, telephone (0116) 252 2758, fax (0116) 252 5140.
The closing date for applications is 3 May 1996. Please quote Ref: A5068.
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Contributed by: Ed Deprettere
POSTDOCTROAL POSITION TECHNICAL UNIVERSITY DELFT
The section Circuits and Systems at the Department of Electrical Engineering,
Delft University of Technology has an opening for a Post-Doctoral
Position for at least one year. The candidate will have to become
the main researcher in a project funded by the Dutch National
Technology Foundation. The project is a cooperation between the
Circuit and Systems group (Delft), the centre for microelectronics
(Veenendaal) and an industrial partner. A background in VLSI
Signal Processing is necessary. The project's objective is to
demonstrate the feasibility of a functional design methodology in
which signal processing algorithms written in C are
taken true a number of powerful transformations taking it downwards
to the level of implementation. A toolbox for carrying out such
transformations is (partly) available and has to be linked to
an exiting high level design system (DSP station). A representative
application is then to be envisaged. This application will be such
that it uses algebraic signal processing (for example subspace
tracking), that it uses Cordic arithmetic in the implementation, that
the system implementation is in single chip form, and that it is
attractive enough for the industrial partner to undertake the final
design.
A summary of the project can be obtained from the project leader, Dr.
Ed F. Deprettere,
phone +(31) 15 278 6289/2175
fax +(31) 15 278 6190.
Candidates should contact the project leader by phone, fax or e-mail, or
write to
Dr. Ed F. Deprettere
Department of Electrical Engineering
Delft University of Technology
2628 CD Delft, The Netherlands.
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Contributed by: P. Khargonekar
Post-Doctoral Position Available
We are looking for a recent Ph D in systems and control for a
post-doctoral position in applications of control to semiconductor
manufacturing. Solid background in linear/nonlinear control theory,
estimation and filtering is desired.
Hand-on experience in real-time control system implementation,
data acquisition and control software and hardware, and computer
programming for control is highly desirable. Please send your
CV via email to Professor Pramod P. Khargonekar at pramod@umich.edu
--------------------------------------
Pramod P. Khargonekar
Associate Chair
Department of Electrical Engineering and Computer Science
The University of Michigan
Ann Arbor, MI 48109-2122
Tel (313) 764-4328 (313) 763-8040
Fax (313) 763-8041
Email pramod@eecs.umich.edu
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Contributed by: Jie Huang
Post-Doctoral Position in Control Available
A post-doctoral research position is available immediately in the
Department of Mechanical & Automation Engineering at the Chinese
University of Hong Kong. The candidates should have the research
experience in one or more of the areas of nonlinear control, robust
control, robot control and automation, flight control, or intelligent
control. The salary is ranged from HK$330,780 to 484,596 per year
(about US$42,736 to 62,609) commensurate with the qualifications and
experience. The initial appointment will be one year, renewable
depending on the fund availability. Applicants should send a complete
curriculum vita via postal mail or e-mail to:
Prof. Jie Huang
Department of Mechanical & Automation Engineering
The Chinese University of Hong Kong
Shatin, New Territories
Hong Kong
Tel: (852) 2609-8473
Fax: (852) 2603-6002
E-mail: jhuang@mae.cuhk.hk
WWW homepage: http://www.mae.cuhk.hk/~jhuang/
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Contributed by: Ingo Hoffmann
Post-Doc Position
"Modelling and model-based development of complex technical systems"
The University of Dortmund has obtained a grant for the temporary
graduate school (Graduiertenkolleg) "Modelling and model-based
development of complex technical systems" which consists of 10
scholarships for young scientists working towards their doctoral
degree and 1 scholarship for a post-doc. The Graduiertenkolleg is
highly interdisciplinary with professors from the departments of
chemical, electrical, and mechanical engineering, computer
science and statistics cooperating in four areas:
- modelling and analysis of distributed systems
(Echtle/Engell/Krumm/Schmidt-Traub)
- modelling using fuzzy logic
(Crostack/Gather/Handschin/Kiendl)
- hybrid systems
(Engell/Kiendl)
- modelling of distributed production systems
(Crostack/Heinz/Kuhn).
The post-doc position is still open and will be filled as soon as
possible. The successful candidate must have obtained a doctorate
and be interested to broaden her/his scope and be able to provide a
stimulus to the research within the overall project in at least one
of the areas mentioned above. The maximal funding period is two
years, applications for shorter periods will also be considered.
More information is available by e-mail
gk@ast.chemietechnik.uni-dortmund.de
Applications should be sent to
Universitaet Dortmund
Professor Sebastian Engell
Lehrstuhl fuer Anlagensteuerungstechnik
Fachbereich Chemietechnik
Emil-Figge-Str. 70
44221 Dortmund
Deutschland (Germany)
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Contributed by Jeremy Gribble (J.Gribble@elec.gla.ac.uk)
PhD RESEARCH OPPORTUNITIES IN THE CENTRE FOR SYSTEMS AND CONTROL
AT THE UNIVERSITY OF GLASGOW
The Centre for Systems and Control is an interdisciplinary research centre
within the Faculty of Engineering at Glasgow University. Its mission is to:
"fulfill the mission statements of the University and Faculty within the
field of Systems and Control Research by creating and sustaining a world
class research group"
Generic research areas include system modelling, fault detection,
model-based control, multivariable control, fuzzy control and estimation,
non-linear control, neural networks, parallel processing and evolutionary
computing. Specific applications areas include robotics, process control,
HVAC systems, fixed wing and helicopter flight control, biomedical
applications and electric machines. Much more detailed information is
available at http://www.mech.gla.ac.uk/Control.
Applicants may be eligible for Engineering Faculty Postgraduate
Scholarships. These scholarships will support outstanding individuals for
three years. To qualify for a scholarship, applicants should possess a First
or Upper Second Class Honours degree in an appropriate subject. The
Scholarships provide a maintenance allowance of 5,500 GBP per annum along
with payment of tuition fees at the home student rate. THE CLOSING DATE FOR
THESE SCHOLARSHIPS IS 31 MARCH 1996, although late applications may still be
considered.
Please contact:
Professor D. Murray-Smith
Centre for Systems and Control
Department of Electronics and Electrical Engineering
University of Glasgow
Glasgow G12 8LT
Scotland, United Kingdom
Telephone: 0141 330 5222
Fax: 0141 330 6004
E-mail: D.Murray-Smith@elec.gla.ac.uk
Further general information on the scholarships can be obtained at
http://www.eng.gla.ac.uk/ra.htm or from
Mr. J. Simpson
Clerk of the Faculty of Engineering
University of Glasgow
Glasgow G12 8QQ
Telephone: 0141 330 4362
E-Mail: J.Simpson@eng.gla.ac.uk
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Contributed by : Raman K. Mehra
Job Opportunity at Scientific Systems
SCIENTIFIC SYSTEMS is a small growing company of engineers and scientists
in the suburban Boston area. We are active in applied research and
development of emerging technologies in the areas of advanced guidance
controls systems, system identification, image and signal processing, and
pattern recognition.
SCIENTIFIC SYSTEMS has clients in government, industrial and commercial
sectors, and collaborates with recognized academic/research institutions
and large businesses to develop and apply new solution methods to current
and future technology needs.
Please direct all correspondence, questions, etc. to
Ms. Patricia Kelly, Human Resources Coordinator
Scientific Systems Company
500 West Cummings Park, Suite 3000
Woburn, MA 01801
Tel: (617) 933-5355
Fax: (617) 938-4752
Email: info@helix.ssci.com
Level: PhD in Controls/Systems Engineering
Duties: Applied Research and Development of Advanced Controls and System
Identification technologies.
Req'd Experience: * Dissertation in one of the following areas --
Advanced Guidance Control Systems (stochastic,
optimal, robust, nonlinear or adaptive control);
System Identification; Optimization Methods;
Linear and Non-linear Systems Theory.
* Familiarity with Modern/Classical Control System
Analysis/Design, as well as topics listed above.
Desirable: * Working knowledge of any of the following topics:
Artificial Intelligence; Intelligent Control Systems;
Neural Networks; Fuzzy Logic; Statistical Analysis;
Discrete-Event Dynamic Systems; Robotics and Automated
Manufacturing Systems.
* Strong algorithm and software development skills (Matlab,
Matrix-X, C, C++, etc.)
* Experience in real-time implementation of advanced controls.
Job code: SSC-9622
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Contributed by: Steve Weller (s.weller@ee.mu.oz.au)
Research Position available in
The Department of Electrical & Electronic Engineering,
University of Melbourne,
Australia
A research fellowship is available in the Department of Electrical &
Electronic Engineering to work with Dr. Steve Weller in the area of
multivariable control systems. The position is for two years, possibly
extendable to three.
The successful applicant must have a Ph.D. or equivalent in control
systems. Of particular interest are candidates with interests and
experience in the finite and infinite zero structure of multivariable
systems.
Salary $36,693 - $ 40,889 ( Research Fellow Grade 1)
Salary $43,042 - $ 51,113 ( Research Fellow Grade 2)
Appointments at Grade 1 or Grade 2 level will be determined by the
level of experience of the applicant.
E-mail enquiries to: s.weller@ee.mu.oz.au
Potential applicants should contact Ms Jackie Brissonette,
tel (+61 3) 9344 6791, or E-mail: j.brissonnette@ee.mu.oz.au for a
position description and further particulars.
Applications including names and addresses of at least three referees
should be addressed to the The Director, Personnel Services, The
University of Melbourne, Parkville 3052, Victoria, Australia.
******************************************
* *
* Books *
* *
******************************************
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Contributed by: G.C. Burdea
T A B L E O F C O N T E N T S
for
FORCE & TOUCH FEEDBACK
FOR VIRTUAL REALITY
Grigore C. Burdea
John Wiley & Sons, approx. 400 pp, 18 color plates,
200 drawings and tables,
ISBN 0-471-02141-5 (Cloth) July 1996.
Orders Call: 1-800-225-5945 or 1-800-263-1590 (Canada)
FAX: 1-212-850-6088
Foreword by Professor Frederick Brooks Jr, University of North Carolina at
Chapel Hill.
1 Introduction: Terminology; From prototypes to commercial applications;
The Contents Of This Book.
2. Haptic sensing and control: Haptic sensing; Sensory-motor control;
Sensing and control bandwidth; Design implications; Conclusions.
3. Actuators: Electrical Actuators; Hydraulic Actuators; Pneumatic
Actuators;
Discussion; Conclusions.
4. Non-Portable Force Feedback: Desk-Grounded Masters; Floor/Ceiling-Grounded
Masters; Conclusions.
5. Portable Force Feedback: Arm Exoskeletons; Hand Masters; Conclusions.
6. Tactile Feedback Interfaces: Tactile Sensors; Surface Texture and Geometry
Feedback; Surface Slip Feedback; Surface Temperature Feedback; Conclusions.
7. Physical Modeling: Collision Detection; Grasping; Surface Deformation;
Surface Mechanical Compliance; Surface Smoothness; Physical Constraints;
Conclusions.
8. Control of Haptic Interfaces: Control Methodology; Haptic Feedback
``Quality"; Distributed Computation; Haptic Feedback Programming;
Conclusions.
9. Human Factors: Criteria for Assessing Task Performance; Force Feedback;
Tactile Feedback; Sensorial Substitution and Redundancy for Force Feedback;
Simulation Sickness; Safety; Conclusions.
10. Haptic Feedback Applications: Medical Applications; Entertainment
Applications; Telerobotic Applications; Military Applications; Conclusions.
11. The Future: Novel Actuators; Haptic Feedback Suits; Large-Volume
Simulations; Conclusions.
Bibliography; List of Companies and Research Laboratories; Index.
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Contributed by: Ilya Kolmanovsky
New Book announcement
MATHEMATICAL THEORY OF CONTROL SYSTEMS DESIGN
by
V.N. Afanasiev, V. Kolmanovskii and V.R. Nosov
Moscow University of Electronics and Mathematics, Russia
MATHEMATICS AND ITS APPLICATIONS 341
Kluwer Academic Publishers
Many interesting topics covered in Mathematical Theory of
Control Systems Design are spread over an Introduction and
four parts. Each chapter concludes with a brief review of
the main results and formulae, and each part ends with an
exercise section.
Part One treats the fundamentals of modern stability theory.
Part Two is devoted to the optimal control of deterministic
systems. Part Three is concerned with problems of control of
systems under random disturbances of their parameters, and
Part Four provides an outline of modern numerical methods of
control theory. The many examples included illustrate the main
assertions, teaching the reader the skills needed to construct
models of relevant phenomena, to design nonlinear control
systems, to explain the qualitative differences between
various classes of control systems, and to apply what they have
learned to the investigation of particular systems.
Audience: Graduate and post-graduate students in such
disciplines as applied mathematics, engineering,
automation and cyberentics.
Contents.
Preface. Introduction. Part One: Stability of control systems.
I. Continuous and descrete deterministic systems. ||. Stability
of stochastic systems. Part Two: Control of deterministic systems.
|||. Description of control problems. |V. The classical calculus
of variations and optimal control. V. The maximum principle.
VI. Linear control systems. VII. Dynamic programming approach.
Sufficient conditions for optimal control. VIII. Some additional
topics of optimal control theory. Part Three: Optimal control of
dynamical systems under random disturbances. |X. Control of
stochastic systems. Problem statements and investigation techniques.
X. Optimal control on a time level of random duration. XI. Optimal
estimation of the state of the system. XII. Optimal control of the
observation process. Part Four: Numerical methods in control systems.
XIII. Linear time-invariant control systems. XIV. Numerical methods
for the investigation of nonlinear control systems. XV. Numerical
design of optimal control systems. General references. Subject
index.
October 1995, 684 pp.
Hardbound, ISBN 0-7923-3724-7
NLG 420.00/USD 279.00/ GBP 179.00
******************************************
* *
* Journals *
* *
******************************************
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Contributed by: gallaghe@siam.org
SIAM and the SIAM Journal on Optimization (SIOPT) are pleased to
announce that SIOPT is now accepting electronic manuscript submissions
in the form of PostScript files. Detailed instructions and further
information can be obtained on SIAM's World Wide Web server
(http://www.siam.org/esubs/esubs.htm) or by e-mail request from
siopt@siam.org.
This foray into electronic submissions is considered an experiment and
is therefore limited in scope. Currently, the SIAM Journal on
Optimization is the only SIAM journal accepting electronic
submissions. However, once our procedures have been tested, we hope to
allow electronic submissions on our other journals. Please stay tuned.
Please visit SIAM's World Wide Web server (http://www.siam.org) or
send e-mail to journals@siam.org for more information about the SIAM
Journal on Optimization or other SIAM journals.
*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.**
Contributed by: Hans Schneider
Announcing the
Electronic Service
of
Linear Algebra and Its Applications
(ESLAA)
Elsevier Science is launching electronic services for Linear Algebra and
Its Applications (LAA). The LAA home page will be at
http://www-east.elsevier.com/lae/
There will be two levels of access to ESLAA.
1. Current Awareness Files , available gratis to anyone with access to WWW.
2. Full-text features available to users at institutions subscribing to LAA.
For an initial period, both levels will be available to all readers.
These are the key features of the home page.
1. Current awareness files available to all with access to WWW:
Tables of Contents of LAA issues published complete with lists of authors,
titles, and bibliographic citation data arranged by issue/volume. Each
article will be linked to its abstract.
Forthcoming Articles, including lists of bibliographic data such as title,
author, an acceptance date for papers in production. Article titles will
be listed alphabetically in one file and linked to their abstracts.
Abstracts, to be available via links in the Table of Contents and the list
of forthcoming articles.
Past and Forthcoming Special Issues will be listed along with their tables
of contents. Each entry in the file will be linked to its appropriate
abstract.
2. Full-Text Features for Users at Subscribing Institutions:
If your domain address matches that of an institution (or part of an
institution) subscribing to LAA, you'll be able to access all gratis files
described above and a subscription based section containing: preprints of
accepted articles, consisting of full-text versions of pre-copy edited
compuscripts submitted in LaTeX (and possibly in other formats in the
future).
New services will be added to the LAA home page in the months ahead,
possibly including a cumulative index.
During the initial period of universal access, no passwords are required.
Information on login names and passwords after the period of universal
access will be circulated later.
An article that appears on ESLAA is considered to be a preprint. Before
the printed article appears, an author will receive the usual proofs and
may make corrections as customary. The printed version of the article is
the final published version.
Richard A. Brualdi
Hans Schneider
Editors-in-Chief of LAA
26 March 1996
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Contributed by: Matthias Kawski (http://math.la.asu.edu/~kawski/kawski.html)
The JOURNAL OF DYNAMICAL AND CONTROL SYSTEMS has new improved WWW-pages
mirrored at the Weizmann Institute in Israel and at Arizona State University
in the US. The pages contain information about how to submit manuscripts,
editorial board memberships, subscription, and tables of contents of recent
issues that are linked to abstracts and reviews where available.
The URL addresses are:
http://math.la.asu.edu/~kawski/JDCS/jdcs.html
http://www.wisdom.weizmann.ac.il/~yakov/JDCS/jdcs.html
*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.**
Contributed by: John Baillieul
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
Table of Contents - Volume 41, Number 4 - April, 1996
___________________________________________________________________________
Scanning the Issue
___________________________________________________________________________
PAPERS
Multiple-Model Estimation with Variable Structure
........................................X. -R. Li and Y. Bar-Shalom
H$infinity$-Control of Discrete-Time Nonlinear Systems
........................................... W. Lin and C.I. Byrnes
Periodic Output Feedback Stabilization of Neutral Systems
......................... T.-J. Tarn, T. Yang, X. Zeng, and C. Guo
Numerical Differentiation and Parameter Estimation in Higher-Order Linear
Stochastic Systems .... T.E. Duncan, P. Mandl, and B. Pasik-Duncan
Optimization of the l$infinity$-Induced Norm Under Full State Feedback
.................................................... J. S. Shamma
Learning by Canonical Smooth Estimation--Part I: Simultaneous Estimation
.....................................K.L. Buescher and P.R. Kumar
Learning by Canonical Smooth Estimation--Part II: Learning and Choice of
Model Complexity ......................... K.L. Buescher and P.R. Kumar
____________________________________________________________________________
TECHNICAL NOTES AND CORRESPONDENCE
On a Quantitative Theory of Robust Adaptive Control: An Interval Plant
Approach ................................ A. Datta and S.P. Bhattacharyya
Smoothing for Random Fields Modeled by Partial Differential Equations
.................................C.E. Economakos and H.L. Weinert
Optimal Control of Perturbed Linear Static Systems
......................................... R. Smith and A. Packard
Periodic and Chaotic Dynamics of a Switched-Server System under Corridor
Policies ................................. G.-X. Yu and P. Vakili
Bilinear Transformation and Generalized Singular Perturbation Model Reduction
......................... B. Clapperton, F. Crusca, and M. Aldeen
Mean-Square Stabilizing Solutions for Discrete-Time Coupled Algebraic Riccati
Equation ..........................................O.L.V. Costa
New Algebro-Geometric Conditions for the Linearization by Input-Output
Injection ............... A. Glumineau, C.H. Moog, and F. Plestan
A Simple Procedure for the Stabilization of a Class of Uncontrollable
Generalized Systems ..................................A. Tornambe
Noncausal Inverses for Linear Systems
...................................L.R. Hunt, G. Meyer, and R. Su
On the solution to the Sylvester Matrix Equation AV+BW=EVF ... G.R. Duan
A Procedure for the Positive Definiteness of Forms of Even Order
...................................... M.A. Hasan and A.A. Hasan
Adaptive Control of Nonlinear Systems via Approximate Linearization
............................... R. Ghanadan and G.L. Blankenship
SComments Regarding "Comments on Modified Extended Kalman Filtering and a
Real-Time Parallel Algorithm for System Parameter Identification"
..........................................S.T. Park and J.G. Lee
Corrections to "Finite Buffer Realization of Input-Output Discrete Event
Systems"................... R. Kumar, V.K. Garg, and S.I. Marcus
_____________________________________________________________________________
BOOK REVIEWS
Direct Adaptive Control Algorithms: Theory and Applications --H. Kaufman, I.
Bar-Kanna, and Sobel .......................... Reviewed by Z. Iwai
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Contributed by: Richard Brualdi
LINEAR ALGEBRA AND ITS APPLICATIONS
Contents Volumes 237/238
Fifth Special Issue on Linear Algebra and Statistics:
In Celebration of C. R. Rao's 75th Birthday (September 10, 1995)
Simo Puntanen (Tampere, Finland) and George P. H. Styan (Montreal,
Quebec, Canada)
A Brief Biography and Appreciation of Calyampudi Radhakrishna Rao,
With a Bibliography of His Books and Papers 1
Sujit Kumar Mitra and K. Manjunatha Prasad (New Delhi, India)
The Nonunique Shorted Matrix 41
Jianming Miao and Adi Ben-Israel (New Brunswick, New Jersey)
Product Cosines of Angles Between Subspaces 71
Donald W. Robinson (Provo, Utah)
The Determinantal-Rank Idempotents of a Matrix 83
Xuzhou Chen and Robert E. Hartwig (Raleigh, North Carolina)
The Group Inverse of a Triangular Matrix 97
K. P. S. Bhaskara Rao (Bangalore, India)
Generalized Inverses With Respect to General Norms. III 109
Jerzy K. Baksalary (Zielona Gora, Poland) and Augustyn Markiewicz
(Poznan, Poland)
Further Results on Invariance of the Eigenvalues of Matrix Products
Involving Generalized Inverses 115
Heinz Neudecker and Shuangzhe Liu (Amsterdam, The Netherlands)
The Density of the Moore-Penrose Inverse of a Random Matrix 123
Heinz Neudecker (Amsterdam, The Netherlands)
The Asymptotic Variance Matrices of the Sample Correlation Matrix in
Elliptical and Normal Situations and Their Proportionality 127
Yasuko Chikuse (Takamatsu-shi, Kagawa-ken, Japan)
Edgeworth and Saddle-Point Approximations for Random Rectangular
Matrices 133
Bjorn Holmquist (Lund, Sweden)
The d-Variate Vector Hermite Polynomial of Order k 155
Shagufta A. Sultan and Derrick S. Tracy (Windsor, Ontario, Canada)
Moments of the Complex Multivariate Normal Distribution 191
Richard William Farebrother (Manchester, United Kingdom)
Some Early Statistical Contributions to the Theory and Practice of
Linear Algebra 205
Wietse Dol, Ton Steerneman, and Tom Wansbeek (Groningen, The Netherlands)
Matrix Algebra and Sampling Theory: The Case of the Horvitz-Thompson
Estimator 225
Jean-Jacques Techene (Pau, France)
Sur la Notion de Projection Orthogonale dans un Espace Semi-euclidien 239
Jurgen Gross and Gotz Trenkler (Dortmund, Germany)
On the Least Squares Distance Between Affine Subspaces 269
Hans Schneeweiss (Munchen, Germany)
The Reduced Form of Recursive Models: Small Sample Properties 277
Paul A. Bekker and Tom J. Wansbeek (Groningen, The Netherlands)
Proxies versus Omitted Variables in Regression Analysis 301
Simo Puntanen (Tampere, Finland) and Alastair J. Scott (Auckland,
New Zealand)
Some Further Remarks on the Singular Linear Model 313
Stephen Haslett (Palmerston North, New Zealand)
Updating Linear Models With Dependent Errors to Include Additional Data
and/or Parameters 329
Hasik Sunwoo (Chungju, Korea)
Simple Algorithms About Kronecker Products in the Linear Model 351
H. J. Werner (Bonn, Germany) and C. Yapar (Trabzon, Turkey)
On Inequality Constrained Generalized Least Squares Selections in the
General Possibly Singular Gauss-Markov Model: A Projector Theoretical
Approach 359
Hans Joachim Werner (Bonn, Germany) and Cemil Yapar (Trabzon, Turkey)
A BLUE Decomposition in the General Linear Regression Model 395
Michael D. Perlman (Seattle, Washington)
On Stochastic Majorization of the Eigenvalues of a Wishart Matrix 405
Kenneth Nordstrom (Helsinki, Finland) and Thomas Mathew (Baltimore, Maryland)
Inequalities for Sums of Matrix Quadratic Forms 429
B. Mond (Bundoora, Victoria, Australia) and J. E. Pecaric (Zagreb, Croatia)
A Mixed Arithmetic-Mean Harmonic-Mean Matrix Inequality 449
Josip E. Pecaric (Zagreb, Croatia), Simo Puntanen (Tampere, Finland), and
George P. H. Styan (Montreal, Quebec, Canada)
Some Further Matrix Extensions of the Cauchy-Schwarz and Kantorovich
Inequalities, With Some Statistical Applications 455
Peter Semrl (Maribor, Slovenia)
On a Matrix Version of Cochran's Statistical Theorem 477
Jerzy K. Baksalary (Zielona Gora, Poland), Peter Semrl (Maribor, Slovenia),
and George P. H. Styan (Montreal, Quebec, Canada)
A Note on Rank Additivity and Range Additivity 489
Robert E. Hartwig (Raleigh, North Carolina), Matjaz Omladic (Ljubljana,
Slovenia), Peter Semrl (Maribor, Slovenia), and George P. H. Styan
(Montreal, Quebec, Canada)
On Some Characterizations of Pairwise Star Orthogonality Using Rank and
Dagger Additivity and Subtractivity 499
D. Collombier (Pau, France)
Tableaux a frequences marginales d'ordre 2 proportionnelles 509
A. El Mossadeq (Casablanca, Maroc)
Fractions de Resolution w et Groupes Abeliens Finis 539
A. C. Georgiou and N. Tsantas (Thessaloniki, Greece)
Nonstationary Cyclic Behavior in Markov Systems 549
Andre Klein and Peter Spreij (Amsterdam, The Netherlands)
On Fisher's Information Matrix of an ARMAX Process and Sylvester's
Resultant Matrices 579
Author Index 591
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Contributed by: thomas@siam.org
SIAM Journal on Control and Optimization
MAY 1996 Volume 34, Number 3
CONTENTS
Infinite-Dimensional Continuous-Time Linear Systems: Stability and Structure
Analysis
Raimund J. Ober and Yuanyin Wu
Dynamic Pole Assignment and Schubert Calculus
M. S. Ravi, Joachim Rosenthal, and Xiaochang Wang
On the Genericity of Stabilizability for Time-Delay Systems
Luc C. G. J. M. Habets
Optimal Positioning of Cathodes for Cathodic Protection
L. Steven Hou and Weiwei Sun
Augmented Lagrangian-SQP Methods for Nonlinear Optimal Control Problems of
Tracking Type
Kazufumi Ito and Karl Kunisch
The Korteweg-de Vries Equation on a Periodic Domain with Singular-Point
Dissipation
S. M. Sun
Unique Determination of Multiple Cracks by Two Measurements
Giovanni Alessandrini and Alvaro Diaz Valenzuela
Regularity and Exact Controllability for a Beam with Piezoelectric Actuator
Marius Tucsnak
A Duality Theory for Separated Continuous Linear Programs
Malcolm C. Pullan
Cycle Decompositions and Simulated Annealing
Alain Trouve
A Characterization of Bounded-Input Bounded-Output Stability for Linear
Time-Invariant Systems with Distributional Inputs
Chi-Jo Wang and J. Daniel Cobb
Finite-Dimensional Approximation of a Class of Constrained Nonlinear Optimal
Control Problems
Max D. Gunzburger and L. Steven Hou
Topological Aspects of Universal Adaptive Stabilization
Stuart Townley
H_infinity Control of Nonlinear Systems: Differential Games and Viscosity
Solutions
Pierpaolo Soravia
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Contributed by: tschoban@siam.org
SIAM Journal on Matrix Analysis and Applications
APRIL 1996, Volume 17, Number 2
CONTENTS
Relations Between Galerkin and Norm-Minimizing Iterative Methods for Solving
Linear Systems
Jane Cullum and Anne Greenbaum
Computation of Numerical Pade-Hermite and Simultaneous Pade Systems I: Near
Inversion of Generalized Sylvester Matrices
Stan Cabay, Anthony R. Jones, and George Labahn
Computation of Numerical Pade-Hermite and Simultaneous Pade Systems II: A
Weakly
Stable Algorithm
Stan Cabay, Anthony R. Jones, and George Labahn
On Two-Sided Bounds Related to Weakly Diagonally Dominant M-Matrices With
Application to Digital Circuit Dynamics
P. N. Shivakumar, Joseph J. Williams, Qiang Ye, and Corneliu A. Marinov
Perturbation Analysis of the Pole Assignment Problem
Ji-Guang Sun
A Subspace Model Identification Solution to the Identification of Mixed
Causal,
Anti-Causal LTI Systems
Michel Verhaegen
Is the Polar Decomposition Finitely Computable?
Alan George and Kh. Ikramov
On the Properties of a Relative Entropy Functional
J.-P. Le Cadre
Perturbation Analysis for Two-Sided (or Complete) Orthogonal Decompositions
Ricardo D. Fierro
A Jacobi-Davidson Iteration Method for Linear Eigenvalue Problems
Gerard L. G. Sleijpen and Henk A. Van der Vorst
Generalized Inverses of Differential-Algebraic Operators
Peter Kunkel and Volker Mehrmann
Some Results on Structure Prediction in Sparse QR Factorization
Esmond G. Ng and Barry W. Peyton
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Contributed by: Huibert Kwakernaak
AUTOMATICA
Table of contents
April, 1996 Issue 32:4
---------------------------------------------------------------------------
Regular Papers
M. Araki, Y. Ito, T. Frequency-response of sampled-data systems
Hagiwara
G. I. Gomez, G. C. Goodwin Integral constraints on sensitivity vectors
for multivariable linear systems
P. Howlett Optimal strategies for the control of a train
K. Kristinsson, G. A. Dumont Cross directional control on paper machines
using Gram polynomials
K. S. Tsakalis Performance limitations of adaptive parameter
estimation and system identification
algorithms in the absence of excitation
Brief Papers
Chun-Bo Feng, Yu-Qiang Wu A design scheme of variable structure
adaptive control for uncertain dynamic
systems
F. N. Koumboulis Input-output triangular decoupling and data
sensitivity
S. O. Reza Moheimani, I. R. Optimal guaranteed cost control of uncertain
Petersen systems via static and dynamic output
feedback
J-L. Hong, C-C. Teng A derivation of the Glover-Doyle Algorithms
for general H(infinity) control problems
A. Banos Stabilization of nonlinear systems based on a
generalized Bezout identity
G. de Nicolao, G. Sala, R. An adaptive predictive regulator with input
Scattolini saturations
A. V. Savkin, I. R. Petersen Model validation for robust control of
uncertain systems with an integral quadratic
constraint
Xiaohua Xia A parametrization approach to disturbance
decoupling problem with stability of
nonlinear
systems
Y. Wang, D. J. Hill Robust nonlinear coordinated control of power
systems
Zongli Lin, A. Saberi and The almost disturbance decoupling problem
A.R. Teel with internal stability for linear systems
subject to input saturation - State feedback
case
M. Krstic, P.V. Kokotovic Modular approach to adaptive nonlinear
stabilization
P. Castaldi, U. Soverrini Identification of dynamic errors-in-variables
models
S. Tan, Yi Yu On adaptive fuzzy modelling of nonlinear
dynamical systems
J-i. Imura, T. Sugie, T. A Hamilton-Jacobi inequality approach to
Yoshikawa strict H-infinity control problem of
nonlinear systems
Technical Communiques
A. Hmamed Componentwise stability of continuous
time-delay linear systems
N. K. Bose Edge property from end-points for scattering
Hurwitz polynomials
Book Reviews
M. Thoma M. Polke: Process control engineering
T. Basar, A. Haurie P. Bernhard: Advances in dynamic games and
applications
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Contributed by: Matthias Kawski (http://math.la.asu.edu/~kawski/kawski.html)
JOURNAL OF DYNAMICAL AND CONTROL SYSTEMS
Table of Contents: Volume 2, no.1, January 1996
V. V. Ryzhikov :
Stochastic Intertwinings and Multiple Mixing of Dynamical Systems
S. M. Voronin, A. A. Grintchi:
Analytic Classification of Saddle Resonant Singular Points of Holomorphic
Vector Fields in the Complex Plane
Yu. L. Sachkov:
Controllability of Hypersurface and Solvable Invariant Systems
V. G. Boltyanskii:
A New Point of View on Linear Controlled Objects
I. V. Polterovich:
On a Characterization of Flat Metrics on 2-Torus
A. Khovanskii, S. Yakovenko:
Generalized Rolle Theorem in Rn and C
V. P. Kostov:
On the Existence of Monodromy Groups of Fuchsian Systems on Riemann's Sphere
with Unipotent Generators
Further information is available on the mirror-sites of the JDCS home-page:
http://math.la.asu.edu/~kawski/JDCS/jdcs.html
http://www.wisdom.weizmann.ac.il/~yakov/JDCS/jdcs.html
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Contributed by: A.H.Zemanian (zeman@sbee.sunysb.edu)
Table of Contents
CIRCUITS, SYSTEMS, AND SIGNAL PROCESSING
Vol. 15, No. 2, 1996:
A fast algorithm for FIR digital filters with a sum-of-triangles
weighting function,
Martin E. Nordberg III
Breakdown points, breakdown probabilities, midpoint sensitivity curves, and
optimization of stack filters,
Pauli Kuosmanen and Jaakko Astola
Optimal deconvolution filter design under parameters perturbation
in transmission channels,
Bor-Sen Chen and Chin-Wei Lin
Generalized maximum a posteriori processing of multichannel
images and applications,
Michael E. Zervakis
Image recovery from exponential blurring,
Joel M. Cohen, Flavia Colonna, and Massimo A. Picardello
System identification from noisy measurements by using instrumental
variables and subspace fitting,
Mats Cedervall and Petre Stoica
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Contributed by: Maurice F. Aburdene
Call For Papers
Journal of the Franklin Institute
Engineering and Applied Mathematics
As co editors of the journal, we are writing to tell you something of
our plans and invite your collaboration in continuing the development of
this historic journal, now in its 170th year.
It is our intention that The Journal continue as a journal of
engineering systems and the mathematics that underlies them. Its present
focus is upon electrical and mechanical engineering, especially
information and communication systems, including control theory; robotics;
wavelets; nonlinear dynamics and fractals; neural computation; signal
processing and mechanics. We realize that no description of this kind
can be comprehensive and we therefore encourage authors to put forward new
topics for publication, provided that they fall within the broad scope of
the journal or are related to one of the current topics. Of particular
interest are emerging mathematical techniques, and especially their
applications.
The core of the journal remains research papers. To encourage
definitive accounts of research we emphasize that there is no arbitrary
limit on the length of papers. Authors of particularly long papers, more
than 6,000 words, should consult with us beforehand; but the bibliographic
data for the journal shows that its papers are cited for many years and
this is a trend we wish to continue.
Papers are normally published within eight months of receipt and often
more quickly if major revisions are not required.
We intend to publish review articles and we invite authors to put
forward proposals for such articles, to be major pieces of writing up to
10,000 words long. Review articles may either cover a relatively narrow
topic at the frontiers of research or may be broader with a strong
tutorial flavor.
Manuscripts for publication should be sent directly to the managing editor
at the Franklin Institute.
Managing Editor
Journal of the Franklin Institute
20th and Parkway
Philadelphia,PA 19103
USA
We look forward to your support in these exciting developments.
Yours sincerely,
Dr. Rabinder Madan Professor Maurice F. Aburdene
Office of Naval Research Bucknell University
******************************************
* *
* Conferences *
* *
******************************************
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Contributed by: Trini Flores
1996 SIAM Conference on SPARSE MATRICES
October 9-11, 1996
Coeur d'Alene Resort
Coeur d'Alene, Idaho
The conference will focus on various aspects of sparse matrix
computations, including, but not limited to, the following topics.
Applications
Iterative Methods for Non-Hermitian Matrices
Parallel Sparse Direct Methods
Preconditioning Techniques
Sparse Eigenvalue Computations
Sparse Methods in Optimization
Sparse Regularization and Rank-Deficient Methods
Structured matrices
The conference will feature three invited plenary lectures on different
aspects of sparse matrix computations and their applications. The
plenary speakers are
Tony Chan, UCLA,
Sparse Matrix Problems in Total Variation Image Restoration
Joseph W.H. Liu, York University, Canada
A Sparse Matrix Ordering Perspective
Margaret H. Wright, Bell Laboratories
Sparsity, Structure, and Separability: Connections with
Large-Scale Optimization
The program will include contributed presentations. The program
committee invites the submission of extended abstracts, one page in
length. From these, long talks (1 hour) and short talks (30 minutes)
will be selected.
DEADLINE for submission of abstract is: APRIL 15, 1996.
====================================================
Send electronic submissions to: meetings@siam.org
and cc electronically to: esmond@msr.epm.ornl.gov
dpierce@espresso.rt.cs.boeing.com
For more information regarding the conference, please access SIAM's
World Wide Web site at
http://www.siam.org/meetings/sm96/sm96home.htm
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Contributed by: Ken Hunt hunt@dbresearch-berlin.de
CALL FOR PAPERS
Neural Adaptive Control Technology Workshop: NACT II
9--10 September, 1996
Daimler-Benz Systems Technology Research Berlin, Germany
NACT Project
============
The second of a series of three workshops on Neural Adaptive Control
Technology (NACT) will take place on September 9--10, 1996 in Berlin,
Germany. This event is being organised in connection with a
three-year European Union funded Basic Research Project in the ESPRIT
framework. The project is a collaboration between Daimler-Benz
Systems Technology Research, Berlin, Germany and the Control Group,
Department of Mechanical Engineering, University of Glasgow, Glasgow,
Scotland.
The project, which began on 1 April 1994, is a study of the
fundamental properties of neural network based adaptive control
systems. Where possible, links with traditional adaptive control
systems will be exploited. A major aim is to develop a systematic
engineering procedure for designing neural controllers for non-linear
dynamic systems. The techniques developed are being evaluated on
concrete industrial problems from within the Daimler-Benz group of
companies: Mercedes-Benz AG, Daimler-Benz Aerospace (DASA),
AEG Daimler-Benz Industrie and DEBIS. The project leader is
Dr Ken Hunt (Daimler-Benz) and the
other principal investigator is Professor Peter Gawthrop (University
of Glasgow).
NACT II Workshop
================
The aim of the workshop is to bring together selected invited
specialists in the fields of adaptive control, non-linear systems and
neural networks.
The first workshop (NACT I) took place in Glasgow in May 1995 and was
mainly dedicated to theoretical issues of neural adaptive control. Besides
monitoring further development of theory the NACT II workshop will be
focused on industrial applications and software tools.
A number of contributed papers will also be
included. As well as paper presentation, significant time will be
allocated to round-table and discussion sessions. In order to create
a fertile atmosphere for a significant information interchange
we aim to attract active specialists in the relevant
fields. Professor Karl Johan Astrom of Lund Institue of Technology,
Sweden and Professor Hassan K. Khalil of Michigan State University have
kindly agreed to act as invited speakers.
Proceedings of the meeting will be published in an edited
book format.
Contributed papers
==================
The Program Committee is soliciting contributed papers in the area of
neurocontrol for presentation at the conference and publication in
the Proceedings. Prospective authors are invited to send an extended
abstract of up to six pages in length to the address below no later than
Friday, 31 May 1996.
Final selection of papers will be announced at the end of June and
authors will have the opportunity of preparing a final version of
the extended abstract by the end of July which will be circulated
to participants in a Workshop digest.
Following the Workshop selected authors will be asked to prepare a
full paper for publication in the proceedings. This will take the
form of an edited book produced by an international publisher. LaTeX
style files will be available for document preparation.
Each submitted paper must be headed with a title, the names,
affiliations and complete mailing addresses (including e-mail) of all
authors, a list of three keywords, and the statement NACT II.
The first named author of each paper will be used for all
correspondence unless otherwise requested.
Address for submissions
Dr Kenneth J Hunt
Daimler-Benz AG
Systems Technology Research
Alt-Moabit 96A
10559 BERLIN
Germany
hunt@DBresearch-berlin.de
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Contributed by: S. Van Huffel
2nd International Workshop on
TLS and ERRORS-IN-VARIABLES MODELING
August 21--24, 1996
Leuven, Belgium
Announcement and Advance Program
This interdisciplinary workshop is a continuation of a previous workshop
on ``Total Least Squares: Concepts, Algorithms, Applications'' which was
held in Leuven, Belgium, August 1991, and aims to bring together numerical
analysts, statisticians, engineers, economists, chemists, etc. in order to
discuss recent advances in Total Least Squares (TLS) techniques and
errors-in-variables modeling.
The different sessions are :
- Errors-in-Variables Modeling: Basic Concepts and Relationships
- Errors-in-Variables Models and Statistical Estimators (Part 1 and 2)
- TLS Algorithms
- Other Algorithms for Errors-in-Variables Modeling
- Orthogonal Curve fitting
- Total Least Norm Problems
- Structured Total Least Squares Problems
- Errors-in-Variables Estimation in Signal Processing
- Poster Presentations (with 10 min. oral introduction)
- Errors-in-Variables Estimation in System Identification
- Errors-in-Variables Modeling and Prediction
The complete advance program (and electronic registration form) are
available
at http://www.esat.kuleuven.ac.be/sista/workshop. You can also obtain the
program and registration form (in latex, postscript or ascii format) via
ftp
at ftp.esat.kuleuven.ac.be/pub/SISTA/motmans/tls/. You can register via
WWW,
e-mail or snail mail.
Conference committee: Sabine Van Huffel (chairperson), Bart De Moor, Wayne
Fuller, Leon Gleser, Gene Golub, Bjorn Ottersten, Rik Pintelon,
Gilbert Stewart and Paul Van Dooren.
Workshop secretariat: Ida Tassens
Dept. of Electrical Engineering, ESAT/SISTA,
Katholieke Universiteit Leuven,
Kardinaal Mercierlaan 94, B-3001 Leuven-Heverlee, Belgium
tel : 32/16/32.17.09 fax : 32/16/32.19.86
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Contributed by: Joachim Rosenthal
The University of Notre Dame Symposium on
Current and Future Directions in Applied Mathematics
April 18 - 21, 1996
The program of the symposium and further information
can be accessed via WWW:
http://www.science.nd.edu/math/SymSchedule.html
There will be a special workshop on systems and control theory
on Friday April 19.
The talks related to systems and control theory are summarized in:
http://www.science.nd.edu/math/SymSystems.html
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Contributed by: Mauricio Duque (mduque@uniandes.edu.co)
CALL FOR PAPERS
II COLOMBIAN ASSOCIATION OF AUTOMATIC CONTROL CONGRESS
Bucaramanga, October 31, November 1 and 2, 1996.
ACTIVITIES:
Paper presentation sessions
Plenary session conducted by invited experts
Micro courses
Industrial exposition
Association congress
SUBJECT
Modeling, identification and simulation of dynamic systems
Control theory and implementation
Instrumentation and industrial process control
Manufacturing process automation
Robotics
Artificial intelligence
Digital signal processing
Electrical machine and power systems control
Automatic control teaching and learning
DEAD LINE
Complete paper (max. 10 pages) until June 15, 1996.
Acceptance notification and instruction for final version July 13, 1996.
Papers in final versions until August 17, 1996
Inscription limit October 26, 1996.
INITIAL PAPER INSTRUCTIONS
Maximum 10 pages, two copies.
The paper must include the title, subject, author address and if possible
e-mail.
Abstract in Spanish and English.
Paper in Spanish or English.
INFORMATION AND ADDRESS
Comite organizador UIS
Gabriel Ordones Plata
Escuela de ingenieria electrica, electronica y comunicaciones
Universidad Industrial de Santander
AA 678
Bucaramanga
Colombia
FAX (57) (1) (76) 350540
E-Mail: gaby@uiscol.uis.edu.co
mduque@uniandes.edu.co
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Contributed by: Ivan Kalaykov (kalaykov@cserv.mgu.bg)
FIRST ANNOUNCEMENT and CALL FOR PAPERS
National Conference with International Participation
AUTOMATICS AND INFORMATICS '96
October 9 - 11 , 1996
Sofia , Bulgaria
PROGRAMME COMMITTEE
Co-chairmen: G. Gatev
V. Lasarov
ORGANISING COMMITTEE
Chairman: I. Kalaykov
Secretary: M. Grigorova
SCOPE
AUTOMATICS AND INFORMATICS '96 is the regular annual conference of all
Bulgarian specialists in both wide areas, opened for all interested
people abroad. Exchange of experience and ideas should contribute to
the international relations. By bringing together experts and represen-
tatives from industry, research institutes and universities the
Conference will continue discussions and exchange of research results
started last years. Both scientific and practical papers are welcome.
TOPICS
- Control Theory
- Modelling and simulation
- Decision making
- Adaptive and robust control
- Real time control
- Classification and recognition
- Sensors and control instrumentation
- Process control
- Low cost automation
- Intelligent control
- Robotics
- Bioprocess control
- CAD systems
- Computer systems and networks
- Parallel algorithms and architectures
- Information systems
- Signal and image processing
- Modelling of information processes
- Artificial intelligence
- New information technologies
- Object-oriented systems
- Reliability and fault tolerance
- Education
- Informatics in banking and insurance
CALL FOR PAPERS
Only unpublished materials may be presented. Prospective authors
should submit the full length papers in two copies by June 30, 1996
in camera- ready form. Authors are urged to prepare their manuscript
using advanced word processing software and a laser printer according
to the presented sample form (the form of most IFAC events). The full
length of paper should not exceed 4 pages.
LANGUAGE
Bulgarian and English.
TIME AND LOCATION
The conference will take place from Wednesday, October 9 to Friday,
October 11, 1996 in the House of Science and Technics of the Bulgarian
Union of Automation and Informatics, Sofia.
REGISTRATION FEE
The registration fee of the conference is 100 USD.
ACCOMODATION
Information about hotel reservations will be provided to participants.
DEADLINES
Submission of full papers June 30 , 1996
Notification of acceptance July 20 , 1996
TECHNICAL SECRETARIAT
Mrs. Margarita Grigorova
AUTOMATICS AND INFORMATICS '96
Union of Automation and Informatics
108 Rakovsky Str.
1000 Sofia, Bulgaria
Fax: + 3592 - 801 - 230
+ 3592 - 879 - 360
e-mail information available at: kalaykov@cserv.mgu.bg
igkal@vmei.acad.bg
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Contributed by: Guan Xiao Hong
The Second Chinese World Congress
on Intelligent Control and Intelligent Automation
Xian Jiaotong University,
Xian, China
June 23-27, 1997
CALL FOR PAPERS
Since its inception in 1993, the CWC ICIA is emerging to be one of the
most important conferences in China for scientists, engineers and
educators all over the world in intelligent control and intelligent
automation. The Congress covers a broad range of disciplies, including
systems engineering, control engineering, computer science and
engineering, manufacturing engineering, and many other areas. The aim
is to provide an international forum for researchers and practicioners
to exchange ideas and experiences in the above areas, and to discuss
the latest development in the field. The technical topics include:
Intelligence and expert Systems;
Intelligent control;
Neural networks and applications;
Fuzzy systems and fuzzy control;
Robotics and robot control;
Large scale systems;
Scheduling, planning, management and decision systems;
Autonomy, integrity and failure diagnosis;
Automation, control and optimization of manufacturing systems;
Theory and applications of DEDS;
CAD/CAM/CIM;
Information processing and information systems;
Systems theory and control theory;
Modeling, identification and estimation;
Adaptive control;
Variable structure control;
Nonlinear systems and control;
H-infinite control and robust control;
Optimization and optimal control;
Distributed computer control systems;
Instrumentation; and
Other topics relevant to intelligent control and intelligent automation.
The Second Congress will be held in Xian, an ancient capital of many
Chinese dynasties and a famous modern tourist city of the world. The social
events include visiting the eighth wonder of the world, the Museum of
Terra Cota Warriors of Qin Dynasty; homage to the Tomb of Yellow Emperor;
etc.
SPONSORS:
Xian Jiaotong University
IEEE Robotics and automation Society
Chinese Association of Automation
Chinese Association of Artificial Intelligence
Shaanxi Provincial Association of Automation
Shaanxi Provincial Association of Artificial Intelligence
International Communication Center of China for Technology and Economy
CO-SPONSORS:
Hong Kong Institute of Engineers
Instrumentation and Control Society, Singapore
Institute of Intelligent Control, Management Academy of China
HONORARY CHAIRS
Jiachi Yang, Ministry of Aircraft and Spacecraft Industries, China
Jian Song, State Science and Technology Commission, China
Y .C. Ho, Harvard University, U.S.A.
GENERAL CHAIR
T. C. Hsia, University of California at Davis, U.S.A.
CO-CHAIRS
T. J. Tarn, Washington University, U.S.A
C. T. Chen, State University of New York, U.S.A.
Ruwei Dai, Academia Sinica
Hanfu Chen, Academia Sinica
C. C. Hang, National University of Singapore
Qiheng Hu, Academia Sinica
T. P. Leung, Hong Kong Institute of Engineers
Yanda Li, Tsinghua University, Beijing
Baosheng Hu, Xian Jiaotong University
K. B. Lim, Instrumentation and Control Society, Singapore
Robert N. K. Loh, Oakland University, U.S.A.
Peter B. Luh, University of Connecticut, U.S.A.
J. Y. S. Luh, Clemson University, U.S.A.
L. Pun, Universite Bordeaux 1, France
Yung-Chun Wu , National Chiao Tung University, Hsinchu
Y.P.Shih, Taiwan University of Oceanography
Xuyan Tu, Chinese Association of Artificial Intelligence
Andong Cheng, Shaanxi Provincial Government
Ji Pan, Xian Jiaotong University
Guanzhong Dai, Northwestern Polytechnic University
Shuzi Yang, Central China University of Science and Technology
Xinsong Jiang, Academia Sinica
PROGRAM CHAIR
T. J. Tarn, Washington University, U.S.A.
LANGUAGES
Chinese or English
SUBMISSION
Send three copies of the draft paper to:
(for authors from North America and Europe)
Prof. T. J. Tarn
Department of Systems Science and Math
Washington University, Campus Box 1040
One Brooking Dr.
St. Louis, Missouri 63103-4899
U.S.A.
Tel: (314) 935-6037
Email: tarn@wuauto.wustl.edu
(for authors from other areas)
Prof. Chongzhao Han
Institute of Systems Engineering
Xian Jiaotong University,
Xian, Shaanxi 710049
P. R. China
Tel: +86 29 326-8677
Fax: +86 29 323-7910
E-mail: bshu@xjtu.edu.cn (Prof. B. Hu ),
czhan@xjtu.edu.cn (Prof. C. Han),
xhguan@xjtu.edu.cn(Prof. X. Guan)
DEADLINES
1. September 15,1996
Draft paper received
2. January 1, 1997
Notification of acceptance
3. February 15, 1997
Camera-ready manuscripts received
4. May 15, 1997
Proceedings published
BEST PAPER AWARD
Two best papers will be awarded the E-TECH AWARD of $1000 each. They will
be determined by the IPC, and will be awarded during the Congress by Dr.
Carter Tseng, the president of E-TECH, INC., Taiwan. Donation for
other awards for the outstanding papers is welcome.
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Contributed by: A.Zinober@sheffield.ac.uk
WORKSHOP ON FLATNESS OF NONLINEAR SYSTEMS
Two-day Workshop Meeting : The University of Sheffield
Date: 25 -- 26 July 1996
FLATNESS OF NONLINEAR SYSTEMS: THEORY AND APPLICATIONS
(with partial funding from EPSRC, UK)
Organizers: Professor Alan Zinober and Dr Pin Liu
School of Mathematics and Statistics
The University of Sheffield
Sheffield S10 2TN
A.Zinober@sheffield.ac.uk
An exciting new area of research in control theory with the
possibility of much practical application, is the Differential
Flatness of Nonlinear Control Systems. This is a nonlinear extension
of Kalman's controllability theory arising from new results using a
differential algebraic approach (Fliess and co-workers). A "flat''
control system is linearizable by endogenous feedback. It is known
that controllable linear systems are flat. Non-flat control systems
cannot be controlled by feedback control. Typical non-flat examples
are the ball and beam problem; simple, double and variable length
pendulums; n-trailer manoeuvering problem. The major property of
differential flatness is that the state and input variables of
nonlinear systems, represented in state-space form, can be expressed
directly in terms of the flat output and a finite number of its
derivatives, without integrating any differential equation. This
property should be extremely useful in the solution of tracking
control problems and other related control problems.
Numerous backstepping and recursive-interlacing methods for
regulating nonlinear systems have been studied since 1991. They have
wide industrial application to robust, adaptive and tracking control
problems including the regulation of Pulse-Width-Modulation (PWM)
DC-to-DC power converters, DC motors, jet engine control, active car
suspensions and flexible robotic problems.
One of the most interesting unsolved questions is: what is the
mathematical relationship between the backstepping approaches
(sometimes combined with sliding mode control) and the resulting
flatness of a system? It has been shown in 1995 by the organizers
that recursive-interlacing control is able to regulate certain
non-flat systems. What is the underlying "flattening'' mechanism?
Furthermore, higher-order sliding mode schemes could possibly be
applied to the control of some non-flat systems. Is there any
underlying relationship between recursive-interlacing and
higher-order sliding mode methods?
The aim of the workshop meeting is to discuss the above fundamental
questions with the European originators of flat systems theory, and
other researchers in sliding mode control, backstepping techniques
and other related areas in nonlinear control systems. It is hoped
that this initial meeting will lead to further collaborative
research which should result in greater theoretical insight, and
also yield practical nonlinear control algorithms for hitherto
problematic industrial problems.
Invited speakers, additional to Sheffield contributors, will
include:
Professors Michel Fliess (CNRS, Paris), Hebertt Sira-Ramirez
(Merida)), Francoise Lamnabhi-Lagarrigue (CNRS, SUPELEC,
Gif-sur-Yvette) and Drs Sarah Spurgeon and Xiao-Yun Lu
(Engineering Department, Leicester University).
On the afternoon of 24th July 1995 we are planning to have
presentations in other areas of nonlinear control theory.
Please send an email to A.Zinober@sheffield.ac.uk to register your
interest in this workshop. Please advise whether you have research
results which may be suitable for presentation. You will be sent
by email further information about this meeting.
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Contributed by: Nageswara S. V. Rao (raons@ornl.gov)
CALL FOR PARTICIPATION
Workshop on
Foundations of Information/Decision Fusion:
Applications to Engineering Problems
August 7-9, 1996, Washington D.C.
Sponsored by
U.S. Department of Energy
Office of Naval Research
Army Research Office
The developments in information/decision fusion have been scattered in
articles in rather diverse areas of political economy, reliability, decision
fusion, sensor fusion, forecasting, pattern recognition, etc. Often the
foundational issues are the same across the disciplines and the solutions are
similar despite the contextual differences. The objective of this workshop is
to bring together researchers in various disciplines to foster an exchange of
foundational ideas and methods that cut across the disciplines but are tied
together with the underlying theme of information/decision fusion.
Call for Papers
Papers are solicited in all areas of information/decision fusion - both
theoretical and application-oriented papers with a foundational focus are
welcome. Six copies of the paper must be submitted or postscript file of the
manuscript must be emailed to Nageswara S. V. Rao at the following address.
Regular Mail: P. O. Box 2008
Oak Ridge National Laboratory
Oak Ridge, TN 37831-6364
Overnight/Express Delivery: Bldg 6010, Rm 220,
Bethel Valley Road
Oak Ridge National Laboratory
Oak Ridge, TN 37831
Email of Postscript files: raons@ornl.gov
Papers must be camera-ready on 8 1/2 by 11 white paper, two-column format in
Times or similar font style, 10 points or larger with one inch margins on all
four sides. The paper must not exceed six pages in total and must be written
in English.
Important Dates:
Submission of Paper: May 20, 1996
Notification: June 10, 1996
Final Manuscript Due: July 8, 1996
For more details: http://avalon.epm.ornl.gov/~nrao/workshop96.html
or contact Nageswara S. V. Rao
email: raons@ornl.gov
phone: (423) 574-7517
fax: (423) 574-7860
Organizing Committee:
Jacob Barhen
Reinhold C. Mann
Vladimir Protopopescu
Richard F. Sincovec
Nageswara S. V. Rao
all of Oak Ridge National Laboratory
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