Lennart Ljung (engineer)
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Lennart Ljung is a Swedish
professor Professor (commonly abbreviated as Prof.) is an Academy, academic rank at university, universities and other tertiary education, post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin ...
in the
Chair A chair is a type of seat, typically designed for one person and consisting of one or more legs, a flat or slightly angled seat and a back-rest. It may be made of wood, metal, or synthetic materials, and may be padded or upholstered in vario ...
of
Control Theory Control theory is a field of control engineering and applied mathematics that deals with the control system, control of dynamical systems in engineered processes and machines. The objective is to develop a model or algorithm governing the applic ...
at Linköping University 1976–2011, after which he continued as
professor emeritus ''Emeritus/Emerita'' () is an honorary title granted to someone who retirement, retires from a position of distinction, most commonly an academic faculty position, but is allowed to continue using the previous title, as in "professor emeritus". ...
. He is known for his pioneering research in
system identification The field of system identification uses statistical methods to build mathematical models of dynamical systems from measured data. System identification also includes the optimal design#System identification and stochastic approximation, optimal de ...
, and is regarded as a leading researcher in
control theory Control theory is a field of control engineering and applied mathematics that deals with the control system, control of dynamical systems in engineered processes and machines. The objective is to develop a model or algorithm governing the applic ...
.IEEE Control Systems Award
/ref>


Education

Lennart Ljung received the B.A. in
Russian Language Russian is an East Slavic languages, East Slavic language belonging to the Balto-Slavic languages, Balto-Slavic branch of the Indo-European languages, Indo-European language family. It is one of the four extant East Slavic languages, and is ...
and
Mathematics Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...
1967, the M.Sc. (first degree) in
Engineering Physics Engineering physics (EP), sometimes engineering science, is the field of study combining pure science disciplines (such as physics, mathematics, chemistry or biology) and engineering disciplines (computer, nuclear, electrical, aerospace, medic ...
1970, and the Ph.D.Mathematics Genealogy Project
/ref> in
Control Theory Control theory is a field of control engineering and applied mathematics that deals with the control system, control of dynamical systems in engineered processes and machines. The objective is to develop a model or algorithm governing the applic ...
1974, all from
Lund University Lund University () is a Public university, public research university in Sweden and one of Northern Europe's oldest universities. The university is located in the city of Lund in the Swedish province of Scania. The university was officially foun ...
.


Background, Present Appointments and Scientific Contributions

Following a position as a research associate at
Stanford University Leland Stanford Junior University, commonly referred to as Stanford University, is a Private university, private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth ...
1974–1975 and a position as an associate professor ( docent) in
control theory Control theory is a field of control engineering and applied mathematics that deals with the control system, control of dynamical systems in engineered processes and machines. The objective is to develop a model or algorithm governing the applic ...
at
Lund University Lund University () is a Public university, public research university in Sweden and one of Northern Europe's oldest universities. The university is located in the city of Lund in the Swedish province of Scania. The university was officially foun ...
in 1975–1976, Lennart Ljung was elected as a professor in the
chair A chair is a type of seat, typically designed for one person and consisting of one or more legs, a flat or slightly angled seat and a back-rest. It may be made of wood, metal, or synthetic materials, and may be padded or upholstered in vario ...
of
control theory Control theory is a field of control engineering and applied mathematics that deals with the control system, control of dynamical systems in engineered processes and machines. The objective is to develop a model or algorithm governing the applic ...
at Linköping University in 1976. He was a visiting researcher at
Stanford University Leland Stanford Junior University, commonly referred to as Stanford University, is a Private university, private research university in Stanford, California, United States. It was founded in 1885 by railroad magnate Leland Stanford (the eighth ...
1980–1981 and at
Massachusetts Institute of Technology The Massachusetts Institute of Technology (MIT) is a Private university, private research university in Cambridge, Massachusetts, United States. Established in 1861, MIT has played a significant role in the development of many areas of moder ...
1985–1986. He was also
Department Head Management (or managing) is the administration of organizations, whether businesses, nonprofit organizations, or a government bodies through business administration, nonprofit management, or the political science sub-field of public adminis ...
of the Department of
Electrical Engineering Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the l ...
, Linköping University between 1981 and 1990. He is currently the Director of the MOVIII Strategic Research Center at Linköping University. He has made extensive contributions to
control theory Control theory is a field of control engineering and applied mathematics that deals with the control system, control of dynamical systems in engineered processes and machines. The objective is to develop a model or algorithm governing the applic ...
, particularly in the area of
system identification The field of system identification uses statistical methods to build mathematical models of dynamical systems from measured data. System identification also includes the optimal design#System identification and stochastic approximation, optimal de ...
. He has authored 10 books, over 150 international journal articles, over 200 international conference papers, and a widely used commercial software package for
MATLAB MATLAB (an abbreviation of "MATrix LABoratory") is a proprietary multi-paradigm programming language and numeric computing environment developed by MathWorks. MATLAB allows matrix manipulations, plotting of functions and data, implementat ...
called the System Identification Toolbox. Lennart Ljung is ranked 84 in the world (1st within Sweden) in the field of Engineering and Technology.


Notable honors and awards

*
IEEE The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) organization, 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE ...
Fellow A fellow is a title and form of address for distinguished, learned, or skilled individuals in academia, medicine, research, and industry. The exact meaning of the term differs in each field. In learned society, learned or professional society, p ...
(1985) * Member of the
Royal Swedish Academy of Engineering Sciences The Royal Swedish Academy of Engineering Sciences (, IVA), founded on 24 October 1919 by King Gustaf V, is one of the royal academies in Sweden. The academy is an independent organisation, which promotes contact and exchange between business, ...
(1985) * Member of the Swedish Academy of Sciences (1995) * Doctor honoris causa
Baltic State Technical University Baltic State Technical University "Voenmeh" D.F. Ustinov (; abbreviated BGTU) is a Russian technical university situated in Saint Petersburg. Previously it was known as the Leningrad Mechanical Institute () and Military Mechanical Institute (). ...
(1996) * Doctor honoris causa
Uppsala University Uppsala University (UU) () is a public university, public research university in Uppsala, Sweden. Founded in 1477, it is the List of universities in Sweden, oldest university in Sweden and the Nordic countries still in operation. Initially fou ...
(1998) * Honorary Member of the Hungarian Academy of Engineering Sciences (2001) * Giorgio Quazza Medal (2002) * Hendrik W. Bode Lecture Prize, awarded by IEEE Control Systems Society (2003) * Foreign Associate of the
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
National Academy of Engineering The National Academy of Engineering (NAE) is an American Nonprofit organization, nonprofit, NGO, non-governmental organization. It is part of the National Academies of Sciences, Engineering, and Medicine (NASEM), along with the National Academ ...
(2004) * Doctor honoris causa Universite de Technologie de Troyes (2004) * Doctor honoris causa
Katholieke Universiteit Leuven KU Leuven (Katholieke Universiteit Leuven) is a Catholic research university in the city of Leuven, Belgium. Founded in 1425, it is the oldest university in Belgium and the oldest university in the Low Countries. In addition to its main camp ...
(2004) * IEEE Control Systems Award (2007) * Doctor honoris causa Helsinki University of Technology (2008) * Large Gold Medal of the Royal Swedish Academy of Engingeering Sciences (2018)


See also

*
System Identification The field of system identification uses statistical methods to build mathematical models of dynamical systems from measured data. System identification also includes the optimal design#System identification and stochastic approximation, optimal de ...
*
Control Theory Control theory is a field of control engineering and applied mathematics that deals with the control system, control of dynamical systems in engineered processes and machines. The objective is to develop a model or algorithm governing the applic ...
*
Electrical Engineering Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the l ...


References


External links


Lennart Ljung's personal web page

MOVIII Strategic Research Center at Linköping University

System Identification Toolbox Product page at MathWorks
{{DEFAULTSORT:Ljung, Lennart Members of the Royal Swedish Academy of Sciences Members of the Royal Swedish Academy of Engineering Sciences Control theorists Systems scientists Swedish engineers Swedish statisticians Academic staff of Linköping University Lund University alumni 1946 births Living people Fellows of the IEEE Foreign associates of the National Academy of Engineering