Automatica, April 1999, Volume 35, No. 4

Editorial

New Editorial Areas and Appointments

Following the appointments of Editors Raphael Sivan and Paul Van den Hof I am now announcing two more editorial appointments. Frank L. Lewis of the University of Texas at Arlington succeeds Chang-Chieh Hang. Hassan K. Khalil of Michigan State University does not succeed anyone but is taking over the nonlinear systems and control area from Tamer Basar.

Chang-Chieh Chang of the National University of Singapore, who is now resigning, is an Automatica veteran. He was an Associate Editor since 1984, and succeeded Patrick Parks as Editor for Adaptive Systems in 1993. He is now going on to other duties after dealing competently and efficiently with hundreds of papers.

During his office as Editor Chang-Chieh has seen the subject area of adaptive systems develop and mature. Research in adaptive control has been broadened since the early 80s to encompass artificial intelligence techniques such as pattern recognition and expert systems. This may not only be attributed to the opportunity to implement adaptive control digitally with the advent of microprocessors but also to the research findings that the robustness of adaptive control systems in practice needs a sophisticated level of supervision and self-diagnostics which should also be automated.

The momentum of real industrial applications has accelerated thedevelopment of fuzzy control and neural-network based control. Cross fertilization enriches the field as adaptive techniques are found useful in tuning or adjusting weights in fuzzy and neuro-control and, conversely, fuzzy rules or neuro-network models are used in the design of adaptive systems. This newly developing area is often referred to as intelligent control.

To reflect these developments Chang-Chieh recommended that his editorialarea be expanded and redefined to Adaptive and Intelligent Control. This formalizes an increasing trend over the past few years of accepting rigourous papers in intelligent control. The Editorial Board endorsed the proposal with enthusiasm. I am very pleased that Frank Lewis is willing to take editorial reponsibility for this expanded area. His broad experience and keen interest in newly developing subjects are expected to bring in many new interesting papers.

Besides intelligent control another fast developing subject is the area of nonlinear systems and control. It is a very rewarding research field, both theoretically and because of its potential for applications. The number of submissions on this subject lately has been rising sharply, greatly adding to Editor Tamer Basar's workload. The Editorial Board therefore decided to establish Nonlinear Systems and Control as a new editorial area. We are very happy indeed that Hassan Khalil accepted editorial responsibility for this new area. He has been one of the important contributors in this research area in the past 15 years, and has been an Associate Editor of Automatica since 1993.

With these two new appointments Automatica hopes to serve the control systems research community even better than before. Submissions in the two newly defined areas are warmly invited. They are as welcome as submissions in all other areas of systems and control.

Huibert Kwakernaak
Editor-in-Chief

khalil.gif (33489 bytes) Hassan K. Khalil
Editor - Nonlinear Systems and Control

Hassan K. Khalil received the B. S. and M. S. degrees from Cairo University, Cairo, Egypt, and the Ph. D. degree from the University of Illinois, Urbana-Champaign, in 1973, 1975, and 1978, respectively, all in Electrical Engineering.

Since 1978, he has been with Michigan State University, East Lansing, where he is currently Professor of Electrical and Computer Engineering. He has consulted for General Motors and Delco Products.

He has published several papers on singular perturbation methods, decentralized control, robustness, nonlinear control, and adaptive control. He is author of the book Nonlinear Systems (second edition; Prentice Hall, 1996), coauthor, with P. Kokotovic and J. O'Reilly, of the book Singular Perturbation Methods in Control: Analysis and Design (Academic Press, 1986), and coeditor, with P. Kokotovic, of the book Singular Perturbation in Systems and Control (IEEE Press, 1986).

He was the recipient of the 1983 Michigan State University Teacher Scholar Award, the 1989 George S. Axelby Outstanding Paper Award of the IEEE Transactions on Automatic Control, the 1994 Michigan State University Withrow Distinguished Scholar Award, and the 1995 Michigan State University Distinguished Faculty Award. He is an IEEE Fellow since 1989.

Dr. Khalil served as Associate Editor of IEEE Transactions on Automatic Control, 1984-1985; Registration Chairman of the IEEE-CDC Conference, 1984; CSS Board of Governors, 1985; Program Committee member, IEEE-CDC Conference, 1986; Finance Chairman of the 1987 American Control Conference (ACC); Program Chairman of the 1988 ACC; Program Committee member, 1989 ACC; and General Chair of the 1994 ACC.

FLLewis.gif (20308 bytes) Frank L. Lewis
Editor - Adaptive and Intelligent Control

Frank L. Lewis was born in Würzburg, Germany, subsequently studying in Chile and Gordonstoun School in Scotland. He obtained the Bachelor's Degree in Physics/Electrical Engineering and the Master's of Electrical Engineering Degree at Rice University in 1971.

He spent six years in the U. S. Navy, serving as Navigator aboard the frigate USS Trippe (FF-1075), and Executive Officer and Acting Commanding Officer aboard USS Salinan (ATF-161). In 1977 he received the Master's of Science in Aeronautical Engineering from the University of West Florida. In 1981 he obtained the Ph. D. degree at The Georgia Institute of Technology in Atlanta, where he was employed as a professor from 1981 to 1990 and is currently an Adjunct Professor. He is a Professor of Electrical Engineering at The University of Texas at Arlington, where he was awarded the Moncrief-O'Donnell Endowed Chair in 1990 at the Automation and Robotics Research Institute.

Dr. Lewis has studied the geometric, analytic, and structural properties of dynamical systems and feedback control automation. His current interests include robotics, intelligent control, neural and fuzzy systems, nonlinear systems, and manufacturing process control. He is the author/co-author of 124 journal papers, 20 chapters and encyclopedia articles, 210 refereed conference papers, seven books: Optimal Control, Optimal Estimation, Applied Optimal Control and Estimation, Aircraft Control and Simulation, Control of Robot Manipulators, Neural Network Control, High-Level Feedback Control with Neural Networks and the IEEE reprint volume Robot Control.

Dr. Lewis is a registered Professional Engineer in the State of Texas and was selected to the Editorial Boards of International Journal of Control, Neural Computing and Applications, and Int. J. Intelligent Control Systems. He is the recipient of an NSF Research Initiation Grant and has been continuously funded by NSF since 1982. Since 1991 he has received $1.8 million in funding from NSF and upwards of $1 million in SBIR/industry/state funding.

He received a Fulbright Research Award, the American Society of Engineering Education F.E. Terman Award, three Sigma Xi Research Awards, the UTA Halliburton Engineering Research Award, the UTA University-Wide Distinguished Research Award, the ARRI Patent Award, various Best Paper Awards, the IEEE Control Systems Society Best Chapter Award (as Founding Chairman), and the National Sigma Xi Award for Outstanding Chapter (as President). He was selected as Engineer of the year in 1994 by the Ft. Worth IEEE Section and is a Fellow of the IEEE. He was appointed to the NAE Committee on Space Station in 1995 and to the IEEE Control Systems Society Board of Governors in 1996. In 1998 he was selected as an IEEE Control Systems Society Distinguished Lecturer. He is a Founding Member of the Board of Governors of the Mediterranean Control Association.