1. Ph.D. in electrical engineering, Paris-Sud University, Laboratoire des Signaux et Systèmes L2S ­ CNRS, Supelec, France, 2000. Thesis: Numerical methods for observation and control of nonlinear systems;
  2. Master’s degree in electrical engineering, Institut National des Sciences Appliquées, Lyon, France, 1994. Thesis: Optimal control of nonlinear systems: Application to under­actuated mechanical systems;
  3. Bachelor’s degree in Avionics, Institut National Supérieur d’Aéronautique, Algeria, 1991. Thesis: On adaptive control of electro­hydraulic robots.

I have held several academic positions during the last years. The main positions are given as follows:

  1. Associate Professor, King Fahd University of Petroleum and Minerals, Electrical Engineering Department, KSA;
  2. Senior Lecturer, The University of The West Indies, Saint Augustine Campus, Trinidad and Tobago, West Indies;
  3. Associate Professor, The University of Trinidad and Tobago UTT, Trinidad and Tobago, West Indies;
  4. Post-doctoral Fellow , Concordia University, Montreal, Canada;
  5. Part-time teaching position: Ecole de Technologie Supérieure, Montreal, Canada;
  6. Research and teaching position, Paris­Sud University, Paris, France;
  7. Part-time teaching position, Institut Universitaire de Technologie (I.U.T.) de Cachan, Paris, France;
  8. Part-time teaching position, Institut National Supérieur d’Ingenierie Appliquee (INSIA), Paris, France;
  9. Part-time teaching position, Institut National Supérieur d’Ingenierie Appliquée (INSIA), Paris, France;
  10. Part-time teaching position: Université de Versailles Saint-Quentin-en-Yvelines, Paris, France.

My background is in the area of Electrical Engineering and Avionics. I summarize my expertise in the following items.

  • Nonlinear control;
  • Robust and adaptive control of uncertain systems;
  • State estimation and parameter identification;
  • Model reduction;
  • Numerical methods and reliable computing;
  • Mechatronics;
  • Instrumentation and applied controls (Hysteresis, dead-zones, etc.);
  • Monitoring and diagnosis of nonlinear systems;
  • Analysis and control of electrical networks (switched systems, hybrid systems);
  • Avionics and control;
  • Aero-Servo-Elasticity;
  • Applied nonlinear control and estimation of time-delay systems;
  • Ill-posed problems in signal estimation;
  • Observation and control of time-delay systems;
  • Software development (Matlab, Simulink, micro-controllers, dSPACE, Maple, Mathematica, Reduce, C, C++, Java, Websphere, Fortran, UNIX).

The research projects are divided by each university attended.

1. King Fahd University of Petroleum and Minerals

I am conducting active research on model reduction of nonlinear systems, adaptive control of hard input systems with application to high-precision positioning, robust control, wing-rock stabilization, modeling of complex systems, numerical algorithms and their application to system control and observation. I am also interested in developing new techniques for state observation, estimation, and parameter identification. A part of my research work is devoted to real-time and intelligent control of a variety of real-world systems.

2. The University of the West Indies

During my stay in UWI, my research activities were mainly focused on the application of nonlinear feedback controllers on fast target computers.

3. The University of Trinidad and Tobago

Since 2008, my research was funded by the University of Trinidad and Tobago. My activities at UTT is very interdisciplinary and moves easily across traditional and local departmental boundaries. I am currently very active in the following areas of research:

  • Modeling and control of fuel-cell systems;
  • Nonlinear control of feedforward systems with application to under-actuated mechanical systems;
  • Parameter estimation;
  • Convex-optimization with application to feedback and observer design;
  • Nonlinear observer design for time-delay nonlinear systems;
  • Observer-based control of nonlinear time-delay systems;
  • Iterative learning control;
  • Estimation of dynamical systems subject to hard-input nonlinearities.

The obtained results are applied in many fields of engineering including, but not limited to process systems and robotic manipulators.

4. Concordia University, Montreal, Canada

My research was conducted in the department of Mechanical and Industrial Engineering of Concordia University. The research was funded by three main projects:

  1. Intelligent Control of Nonsmooth Dynamic Systems, CRC – Concordia Tier II Research Chair Grant, funded by Concordia University;
  2. Robust/Adaptive Control of Underactuated Mechanical Systems, NSERC Discovery Grants, funded by NSERC;
  3. Intelligent systems for precision manufacturing, an IRIS Phase 3 Project, funded by IRIS, one of NETWORKS OF CENTRES OF EXCELLENCE.

More specifically, my main research activity concerns the modelling of rate-dependent hysteresis phenomena that appear in practical systems including high precision positioning systems, piezoelectric transducers, chaotic oscillators, electromagnetic machines and lightweight space structures. A part of the research was devoted to the following subjects:

  • Adaptive control of nonlinear systems subject to dead-zone inputs;
  • Observer-based control of flexible-joint robots;
  • Monitoring of time-varying delay nonlinear systems in discrete-time;
  • Robust and multi-objective control design;
  • Convex optimization with application to observer and feedback designs.

The last three topics were conducted by me as a personal research program.

5. Ecole de Technologie Supérieure, Montreal, Canada

I participated to CNRCG research program in Aeroservoelasticity. I have developed a considerable part of the project and published several papers on fast and reliable modelling of aerodynamic forces and its interaction with the aircraft dynamics;

I developed theoretical framework for stabilization of uncertain aircraft models.

6. Laboratoire des Signaux et Systèmes L2S, Supelec, France

During these years my research was focused on nonlinear observer design and observer-based control of nonlinear systems.

During my stay at L2S, I have developed several new algorithms for numerical differentiation, control, and observation in presence of noise. The tool was designed in an object­oriented fashion and implemented entirely in Matlab and C. During the whole period of my thesis, I was entirely responsible for the whole design and implementation. A part of my research was dedicated to the control of under-actuated mechanical systems and mobile robotics.
Journal papers
  1. S. Ibrir, “Adaptive stabilization of feedforward nonlinear systems driven by symmetric dead-zone inputs,” submitted, 2012.
  2. S. Ibrir, “Design of stabilizing controllers for feedforward nonlinear systems subject to non-symmetric dead-zone inputs,” submitted, 2011.
  3. S. Ibrir and C. Y. Su, “Simultaneous state and dead-zone parameter estimation for a class of bounded-state nonlinear systems,'' IEEE Transactions on Control Systems Technology, Vol. 19, no. 4, pp. 911-919, 2011.
  4. S. Ibrir, “Observer-based control of a class of time-delay nonlinear systems having triangular structure,'' Automatica, Vol. 47, no. 2, pp. 388-394, February 2011. pdf
  5. S. Ibrir, “Adaptive observers for time-delay nonlinear systems in triangular form,” Automatica, Vol. 45, no. 10, pp. 2392-2399, October 2009.
  6. S. Ibrir and S. Diop, “Robust state reconstruction of linear neutral-type delay Systems with application to lossless transmission lines: A convex optimization approach,” IMA Journal of Mathematical Control and Information, Vol. 26, no . 3, pp. 281-298, 2009. pdf
  7. S. Ibrir, “Stability and robust stabilization of discrete-time switched systems with time-delays: LMI approach,” Applied Mathematics and Computation, Elsevier, Vol. 206, no. 2, pp. 570-578, December 2008.
  8. S. Ibrir, “Design of static and dynamic output feedback controllers through Euler approximate models: Uncertain systems with norm-bounded uncertainties,” IMA Journal of Mathematical Control and Information, Elsevier, Vol. 25, pp. 281-296, 2008.
  9. S. Ibrir and S. Diop, “Novel LMI conditions for observer-based stabilization of Lipschitzian nonlinear systems and uncertain linear systems in discrete-time,” Applied Mathematics and Computation, Vol. 206, no. 2, pp. 579-588, December 2008.
  10. S. Ibrir, “Observer design for uniformly-observable polynomial systems,” Automatica, provisionally accepted, 2007.
  11. S. Ibrir, “Static output feedback and guaranteed cost control of discrete-time nonlinear systems with partial state measurements,” Nonlinear Analysis: Theory, Methods and Applications, Vol. 68, no. 7, pp. 1784-1792, April 2008.
  12. S. Ibrir,``Circle-criterion approach to discrete-time nonlinearobserver design,'' Automatica, Vol. 43, no. 8, pp. 1432--1441, August 2007. pdf
  13. S. Ibrir, W. F. Xie, and C.­Y. Su, “Adaptive tracking of nonlinear systems with non-symmetric dead-zone input,” Automatica, Vol. 43, no. 3, pp. 522-530, 2007. pdf
  14. S. Ibrir, “Convex optimization approach to observer­based stabilization of uncertain linear systems,” Transactions of the ASME, Journal of Dynamic Systems, Measurement and Control, Vol. 128, pp. 989­994, December 2006. pdf
  15. S. Ibrir, “On observer design for nonlinear systems,” International Journal of Systems Science, Vol. 37, no. 15, pp. 1097–1109, December 2006. pdf
  16. S. Ibrir, “Static output feedback and guaranteed cost control of discrete-time nonlinear sys­tems with partial state measurements,” Nonlinear Analysis: Theory, Methods and Applications, Available on­line at: http://dx.doi.org/10.1016/j.na.2007.01.011, accepted, Novem­ber, 2006. pdf
  17. S. Ibrir, “Regularization and robust control of uncertain singular discrete-time linear systems,” IMA Journal of Mathematical Control and Information, Accepted on 7 March 2006. Availavale on­line: doi:10.1093/imamci/dn1011. To appear in 2007. pdf
  18. S. Ibrir, W. F. Xie, and C.­Y. Su, “Observer design for discrete­time systems subject to time-delay nonlinearities,” International Journal of Systems Science, Vol. 37, no. 9, pp. 629–641, July 2006. pdf
  19. S. Ibrir, W. F. Xie, and C.­Y. Su, “Observer-based control of discrete-time Lipschitzian nonlinear systems: Application to one-link flexible joint robot,” International Journal of Control, Vol. 78, no. 6, pp. 385–395, April 2005. pdf
  20. S. Ibrir and R. Botez, “Robust stabilization of uncertain aircraft systems,” Journal of Vibration and Control, Vol. 11, no. 2, pp. 187–200, 2005.
  21. S. Ibrir and E. K. Boukas, “A constant gain nonlinear estimator for linear switching systems,” Nonlinear Dynamics and Systems Theory, Vol. 5, no. 1, pp. 49–61, 2005.
  22. S. Ibrir, “Linear time-derivative trackers,” Automatica, Vol. 40, no. 3, pp. 397–405, 2004. pdf
  23. S. Ibrir, “Robust non­peaking algebraic observers,” Wseas Transactions on Systems, Vol. 4, No. 3, pp. 1605–1612, June 2004. pdf
  24. S. Ibrir and S. Diop, “A numerical procedure for filtering and efficient high-order signal differentiation,” International journal of Applied Mathematics and Computer Science, Vol. 12, no. 2, pp. 201–208, 2004. pdf
  25. S. Ibrir, “On­line exact differentiation and notion of asymptotic algebraic observers,” IEEE Transactions on Automatic Control, Vol. 48, no. 11, pp. 2055–2060, 2003. pdf
  26. ——, “Algebraic Riccati equation based differentiation trackers,” AIAA Journal of guidance control and dynamics, Vol. 26, no. 3, pp. 502–505, 2003. pdf
  27. S. Ibrir and E. K. Boukas, “Stabilization of singular switching systems with constant gain controllers,” International Journal of Hybrid Systems, Vol. 2­3, pp. 151–165, 2003.
  28. S. Ibrir, “Numerical algorithm for filtering and state observation,” International Journal of Applied Mathematics and Computer Science, Vol. 9, no. 4, pp. 855­869, 1999. pdf

 

Conference papers
  1. S. Ibrir, “Global estimation of nonlinear systems with unknown input coefficients,'' IEEE Multi Conference on Systems and Control, Yokohama, Japan, September 8-10, 2010.
  2. S. Ibrir, “Nonlinear observer design with robustness of transient behavior: Application to flexible joint robot,'' IEEE Multi Conference on Systems and Control, Yokohama, Japan, September 8-10, 2010.
  3. S. Ibrir, “Semi-globally convergent observer for nonlinear-single-output systems subject to time delay'', IEEE Multi Conference on Systems and Control, Yokohama, Japan, September 8-10, 2010.
  4. S. Ibrir, “Simultaneous fault and state estimation in time-delay nonlinear systems in triangular form,” In proceedings of IEEE International Symposium on Industrial Electronics, Seoul, Korea, July 2009.
  5. S. Ibrir, “Observer-based control of nonlinear time-delay systems in lower-triangular form,” In proceedings of ASME Dynamic Systems and Control Conference, Hollywood, California, USA, October 2009.
  6. S. Ibrir, “LPV approach to continuous and discrete nonlinear observer design,” In proceedings of IEEE Conference on Decision and Control, Shanghai, China, December 2009.
  7. S. Ibrir, “Observer design for inherently nonlinear systems with lower triangular structure,” In proceedings of IEEE Conference on Decision and Control, Shanghai, China, December 2009.
  8. S. Ibrir, “Simultaneous state and dead-zone parameter estimation using high-gain observers,” In proceedings of IEEE Conference on systems, Man and Cybernetics, Saint Antonio, Texas, October 2009, USA.
  9. S. Ibrir, “New delay-dependent conditions for H-infinity filtering of nonlinear systems with neutral-type time delay,” In proceedings of IEEE Conference on systems, Man and Cybernetics, Saint Antonio, Texas, October 2009, USA.
  10. S. Ibrir, “Adaptive observer design for a class of nonlinear time-delay systems in lower-triangular form,” In proceedings of American Control Conference, St Louis, Missouri, USA, June 2009.
  11. S. Ibrir, “Design of robust and chattering-free rational controllers,” In proceedings of IEEE Multi-conference on Systems and Control, Saint Petersburg, Russia, July 2009.
  12. S. Ibrir, “New adaptive observer design for uniformly observable nonlinear systems,” In proceedings of IEEE Multi-conference on Systems and Control, Saint Petersburg, Russia, July 2009.
  13. S. Ibrir, D. Cheddie, “Model-based estimation of PEM fuel-cell systems,” In proceedings of IEEE Multi-conference on Systems and Control, Petersburg, Russia, July 2009.
  14. S. Ibrir, “Hybrid observer design for a class of nonlinear systems,” In proceedings of 7th Asian Control Conference, Hong Kong, China, August 2009.
  15. S. Ibrir, “Algebraic observer design for a class of uniformly-observable nonlinear systems: Application to 2-link robotic manipulator,” In proceedings of 7th Asian Control Conference, Hong Kong, China, August 2009.
  16. S. Ibrir, “LMI Approach to regularization and stabilization of linear singular systems: The Discretetime case,” In proceedings of Int. Conference on Intelligent Control systems Engineering, Rome, Italy, April, 2009.
  17. S. Ibrir, “Circle-criterion observers for dynamical systems with positive and non-positive slope nonlinearities,” Accepted for publication in proceedings of the American Control Conference, New-York, USA, July 2007. pdf
  18. S. Ibrir, “Nonlinear circle-criterion observers in discrete­time,” Accepted for publication in proceedings of the American Control Conference, New-York, USA, July 2007. pdf
  19. S. Ibrir, “Stability and robust stabilization of discrete-time switched systems with time-delays: LMI approach,” To appear in the proceedings of International Conference on Modeling, Simulation and Applied Optimization, Abu-Dhabi, UAE, March 2007. pdf
  20. S. Ibrir and S. Diop, “New linear matrix inequalities conditions for observer-based stabilization of uncertain discrete-time linear systems,” To appear in the proceedings of International Conference on Modeling, Simulation and Applied Optimization, Abu-Dhabi, UAE, March 2007. pdf
  21. S. Ibrir, C.­Y. Su, and W. F. Xie, “New parameterized hysteresis model and stabilization chal­lenge of a class of hysteresis input systems,” To appear in the proceedings of IEEE Conference on decision and Control, San Diego, CA, USA, December 2006. pdf
  22. S. Ibrir, W. F. Xie, and C.­Y. Su, “Convex optimization approach to state estimation of a class of discrete-time systems with time­delay nonlinearities,” In proceedings of International Conference on Control and Applications, Montreal, Canada, 2006. pdf
  23. S. Ibrir, and S. Diop, “Robust state estimation of linear neutral­type delay systems: a convex optimization setting,” In proceedings of the 14th Mediterranean Conference on Control Automation, Invited session on observer design, Ancona, Italy, 2006. pdf
  24. S. Ibrir, W. F. Xie, and C.­Y. Su, “Adaptive tracking of a class of uncertain nonlinear systems subject to unknown dead-zone input nonlinearities: The symmetric and the non-symmetric cases” In proceedings of American Control Conference, 2006.
  25. S. Ibrir, W. F. Xie, and C.­Y. Su, “Efficient adaptive tracking of a class of uncertain nonlinear sys­tems with completely unknown symmetric dead-zone inputs,” In the 6th World Congress on intelligent Control and Automation, 2006.
  26. S. Ibrir, “Less conservative linear matrix inequalities for observation of continuous­time and discrete­time nonlinear systems,” In proceedings of the .rst International Conference on Modelling, Simulation and Applied Optimization, Paper 220, February 2005, Sharjah, United Arab Emirates.
  27. ——, “Regularization of uncertain singular discrete­time linear systems: A linear matrix inequality approach,” In proceedings of the .rst International Conference on Modelling, Simulation and Applied Optimization, February 2005, Sharjah, United Arab Emirates.
  28. S. Ibrir, “Robust state estimation with q­integral observers,” In proceedings of the American Control Conference. Boston, USA., 2004.
  29. R. Botez, S. Ibrir, D. Biskri, and D. Hamza, “Aerodynamic forces approximation for aeroservoe­lastic models,”44th AIAA ASME ASCE AHS ASC, structures, structural dynamics, and materials conference, 2003, Norfolk, VA, USA, AIAA 2003­1577.
  30. S. Ibrir and R. Botez, “Robust stabilization of uncertain aircraft models,” AIAA ASME ASCE AHS ASC, structures, structural dynamics, and materials conference, 2003, Norfolk, VA, USA, AIAA 2003­1885. pdf
  31. S. Ibrir, “New differentiators for control and observation applications,” In proceedings of the American Control Conference, pp. 2522–2527, 2001, Arlington, USA.
  32. S. Ibrir and S. Brahim­Belhaouari, “On the control of nonholonomic systems in power form,” In the proceedings of the IEE-United Kingdom Automatic Control Council conference, pp. . 1438–1443, September 1998, England. pdf
  33. S. Diop, J. W. Grizzle, and S. Ibrir, “On regularized numerical observers,” In proceedings of the 38th Conference on Decision and Control, pp. 2902–2903, December 1999, Phoenix, Arizona, USA.
  34. S. Ibrir and S. Diop, “On continuous­time differentiation observers,” In Proceedings of the 5-th European Control Conference, September 1999, Karlsruhe, Germany.
  35. S. Ibrir, “Observation of Hamiltonian mechanical systems,” In Proceedings of the IEEE Conference on Decision and Control, pp. 1168–1171, December 1999, Phoenix, Arizona. pdf
  36. ——, “Dynamical-model approach to observer and smooth filter design,” In Proceedings of the American Control Conference, June 1999, San Diego, USA.
  37. S. Ibrir and S. Diop, “Two numerical differentiation techniques for nonlinear state estimation,” In Proceedings of the American Control Conference, pp. 465–469, June 1999, San Diego, USA.
  38. S. Diop and S. Ibrir, “A model-based numerical differentiation observer for linear systems,” In the proceedings of the IFAC World Congress, pp. 267–272, 1999, China. pdf
  39. ——, “A numerical observer-controller for the stabilization of an inverted pendulum system,” In proceedings of the 5th international symposium on methods and models in Automation and Robotics, pp. 239–245, 1998. pdf
  40. 25. ——, “A numerical algorithm for filtering and state observation,” In CDROM proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), pp. 1281–1286, March 1998, Washington, USA.
  41. S. Diop and S. Ibrir, “On numerical observers : Application to the control of an inverted pendulum,” 4th IFAC Conference on System Structure and Control, SSc’97, 1997.
  42. ——, “On numerical observers application to a simple academic adaptive control example,” In proceedings of the 4­th European Control Conference, July 1997, Brussels, Belgium. pdf
  • December 1997: Object­Oriented Design (10 days), France;
  • March 1997: Self Management (3 days); , France;
  • November 1998: C++ for C Programmers (4 days), France;
  • November 1999: Leadership (3 days), France;
  • July 2000: Web development(12 days), France;
  • July 2000: ORACLE, SQL, UML, MERISE (2 months), France.
  1. 2007: Member of the International Program Committee for the IEEE Conference on Control Application, Singapore;
  2. 2008: Member of the International Program Committee for Tobago Gas Technology Conference (TGTC) 2008, Tobago, Trinidad and Tobago;
  3. 2010-present: Member of the Executive Committee of the IEEE Technology Management Council, IEEE-TT;
  4. Reviewer for IEEE Transactions on Fuzzy Systems (web site);
  5. Reviewer for International Journal of Robust and Nonlinear Control (web site);
  6. Reviewer for International Journal of Systems Science (web site);
  7. Reviewer for IEEE Transactions on Automatic Control (web site);
  8. Reviewer for IEEE Transactions on Control Systems Technology (web site);
  9. Reviewer for International Journal of Control (web site);
  10. Reviewer for Journal of Optimal Control, Applications and Methods (web site);
  11. Reviewer for SIAM Journal on Control & Optimization (web site);
  12. Reviewer for IET Control Theory and Applications (web site);
  13. Reviewer for International Journal of Applied Mathematics and Computer Science (web site);
  14. Reviewer for IFAC World Congress Conferences (web site);
  15. Reviewer for American Control Conference (web site);
  16. Reviewer for IEEE Conference on decision and Control (web site).
  • Member of Canadian Association of University Teachers CAUT;
  • AIAA Member;
  • IEEE member IEEEXplore;
  • IEEE Control Systems Society Member CSS.

Familiarity with specific hardware, software, techniques and methodologies.

  1. Object­Oriented Analysis, Design and Programming (UML, VisualWorks Smalltalk, C++) Graph­ical User Interface Design Web development skills: Hypermedia, HTML, Java, JavaScript, Servlets, Dreamwever, Flash, Fireworks, Moviegear, Photoshop, PhotoImpact, Ulead Cool 3D,FrontPages2000, Web Expert, X Metal 2, Hot Metal Pro;
  2. UNIX (SunOS, Solaris, Ultrix, HP­UX, SCO OpenServer 5) Linux (RedHat 7) administration VMS, OpenVMS 7.1 Windows NT4 UNIX shell scripting, VMS DCL, Tcl/Tk (GUI scripting);
  3. C, FORTRAN, Pascal, Delphi Visual Basic 5 Functional Programming (LISP) Logic Programming (Prolog)
    Sun, HP, DEC Alpha, Sequent, PC hardware X11 Window System and Motif Relational Database Development and Administration (CA­OpenIngres 1.2 and Microsoft Access) Network Man­agement (TCP/IP, Netrix X.25 NMS, Riversoft OpenRiver).
  4. Maple
  5. MapleSim
  6. Flowcode
  7. Multisim
  8. Proteus Professional
  9. National Instruments, Labview
  10. Matlab/Simulink
  11. Comsol multiphysics
  12. dSPACE
  13. Web design with Dreamweaver
  14. Latex

 

 

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