Prof. Dr. Hitay Özbay

2022-2023 Fall Schedule

Teaching EEE 342 Feedback Control Systems (Tuesday 8:30-12:20; Thursday 13:40-17:20)

Biography

Hitay Özbay is a Professor of Electrical and Electronics Engineering at Bilkent University, Ankara Turkey. He received the B.Sc., M.Eng. and PhD degrees from Middle East Technical University  (1985), McGill University  (1987), and University of Minnesota (1989), respectively. His prior academic affiliations include University of Rhode Island (1989-1990), and The Ohio State University (1991—2006) where he was a Professor of Electrical and Computer Engineering prior to joining Bilkent University. He also held a visiting position at INRIA, France (2009-2010). Professor Özbay was a member of the Board of Governors of the IEEE Control Systems Society (elected for the term 2017-2019) and an assembly member of the European Control Association (EUCA), representing Turkey, 2013-2019. He served as Associate Editor for many journals, including IEEE Transactions on Automatic Control (1997-1999), SIAM Journal on Control and Optimization (2011-2014), and Automatica (2001-2007, 2012 - 2019). He was a Vice-Chair of the IFAC Technical Committee on Networked Control Systems (2005-2011); and currently is a Vice-Chair of the IFAC Technical Committee on Linear Control Systems (2017-2023). He is a Fellow of IEEE.

See an interview in Control Systems Magazine, August 2018

Link to CV

Publications

Dr. Özbay has authored/co-authored many technical papers in the area of robust control of infinite dimensional systems, and engineering applications of this theory (see the CV for complete list of publications). Books:

Research Interests
This section is permanently under construction!
Last updated Fall 2018.

·      Robust controller design for infinite dimensional systems; trade-offs between controller complexity and achievable performance and robustness level; delay margin optimization.

·     Applications of robust control theory to problems appearing in robotics, manufacturing, aerospace systems, transportation systems, biology and process control. Some examples are given below.

·      Biological systems modeling analysis and control. See our book Analysis of Deterministic Cyclic Gene Regulatory Models with Delay.

See also the papers in

1.      IFAC PapersOnLine 50-1 (2017) 13312–13317 (IFAC World Congress, 2017)

2.      IEEE Life Sciences Letters, vol. 2, no. 2, June 2016.

3.      International Journal of Robust and Nonlinear Control, 2013, DOI: 10.1002/rnc.2947

4.      Advances in Delays and Dynamics at Springer (ADD@S), vol. 1, pp.315—328, 2014; DOI: 10.1007/978-3-319-01695-5_23

5.      Advances in Delays and Dynamics at Springer (ADD@S), vol. 1, pp. 127—140, 2014; DOI: 10.1007/978-3-319-01695-5_10

6.      Mathematical Modelling of Natural Phenomena, vol. 7 (2012), No. 1, pp. 203—234;

·        Controller design algorithms for infinite dimensional plants and stability analysis techniques.
Click here to receive a Matlab program for H-infinity control of infinite dimensional plants.
Related publications:
Link to Foias-Özbay-Tannenbaum (1996) book. See also flyer of the book.

See the most recent book (October 2018) by Ozbay-Gumussoy-Kashima-Yamamoto

1.      Numerical Linear Algebra with Applications, vol. 20 (2013), pp. 327—335

2.      Automatica, vol.48 (2012) pp. 2824–2830

3.      IET Control Theory and Applications, vol 7 (2013), pp. 1422–142.

4.      IEEE Transactions on Automatic Control, vol. 52, no. 12, December 2007, pp. 2369—2374

5.      Systems & Control Letters, vol. 56 (2007), pp. 504—511.

6.      Systems & Control Letters, vol.54 (2005), pp.1063—1068.

7.      Systems & Control Letters, vol.53 (2004), pp. 211—216.

·        Switched systems with time delays. See papers in

1.      Automatica, vol. 93, July 2018, pp. 92—97.

2.      SIAM J. Control and Optimization, vol. 56, no. 1, (2018), pp. 158—182.

3.      International Journal of Control, vol. 91, no. 1, (2018), pp. 1—11.

4.      IET Control Theory and Applications, vol 7 (2013), pp. 1422–1428.

5.      SIAM J. Control and Optimization, vol. 47 (2008), no. 2, pp. 936—949.

6.      Systems & Control Letters, vol. 56 (2007), pp. 504—511.

·        Stabilization by a stable feedback controller, design of stable and robust controllers. See papers in

1.      IEEE Transactions on Automatic Control, vol. 59 (2014), pp. 1099—1105.

2.      Systems & Control Letters, vol. 62 (2013), pp. 511–516.

3.      IEEE Transactions on Automatic Control, vol. 54 (2012), No. 8, pp. 2089—2094.

4.      Springer LNCIS vol. 398, pp. 105–113, 2010.

5.      IEEE Transactions on Automatic Control, vol. 56, June 2011, pp. 1445—1452

6.      International Journal of Control, vol. 83, No. 3, March 2010, pp.  516—526

7.      IEEE Transactions on Automatic Control, vol. 54, March 2009, pp. 590—595

8.       International Journal of Control, vol. 81, no. 4, April 2008, pp. 546–-556.

9.      IEEE Transactions on Automatic Control, vol. 50, No. 12, December 2005, pp. 2083—2087.

10.   Automatica , vol.36, November 2000, pp.1675—1684.

11.   IEEE Transactions on Automatic Control, vol.44 (1999), no.2, pp.431—435.

·       Design of PID controllers for unstable plants with time delays.
See a recent edited book Low-Complexity Controllers for Time-Delay Systems
See also our papers in

1.     Control Engineering Practice, vol. 21 (2013), pp. 655—668.

2.     Systems & Control Letters, vol. 61 (2012),  pp. 18–23

3.     Springer-Verlag LNCIS vol. 388, (2009), pp.197—207

4.     Automatica, vol. 43, No. 1, January 2007, pp. 135—142.

·        Control problems in computer communication networks. See our papers in

1.     Computer Communications, vol. 36 (2013), pp.1225—1234

2.     International Journal of Robust and Nonlinear Control, vol. 20 (2010), pp. 1529—1548

3.     International Journal of Control, vol. 82, January 2009, pp.  95—116

4.     IEEE Transactions on Automatic Control, vol.49, no.6 (2004), pp.1031—1036.

5.     IEEE Transactions on Control Systems Technology, vol. 13 no. 2 (2005), pp.203—215

6.     Advances in Communication Control Networks, Springer-Verlag LNCIS, Vol. 308, 2005, pp. 49—64.

7.     Automatica, vol 38, issue 6, (2002), pp.917—928.

·        Aerodynamic flow control: see our papers in

1.     AIAA Journal Vol. 44, No. 5, May 2006.

2.     Proc. of 14th Mediterranean Conference on Control and Automation, Ancona, Italy, June 2006,
(available in IEEE Xplore, DOI: 10.1109/MED.2006.328754).

3.     Proc. of the joint 44th IEEE CDC and ECC 2005, Sevilla, Spain, December 2005, pp. 5492—5497.

4.     International Journal of Control, vol.78, no.11 (2005), pp. 864—874.