Dr. Reyad El-Khazali

Dr. Reyad El-Khazali

Associate Professor, Electrical Engineering and Computer Science

Address: P.O.Box: 127788, Abu Dhabi, UAE

Telephone: +971 (02)-501-8431

Fax: +971 (02)-447-2442

Email:  reyad.elkhazali@ku.ac.ae


  • Ph.D., Electronic Engineering, Purdue University (USA), 1992
  • M.Sc., Electronic Engineering, University of Alabama in Huntsville (USA), 1986
  • B.Sc., Electronic Engineering, Menofia University (EGY), 1981
  • Control Engineering
  • Digital Signal Processing
  • Electromechanical and Power Systems
  • Electronics and Electric Circuits
  • Communications
  • Nonlinear Systems and Sliding Mode Control
  • Fractional-Order Systems and Control
  • Signal Processing
  • Power Systems
  • System Identification

Google Scholar  Scopus

Journal Papers

  • R. El-Khazali, “On the Biquadratic Approximation of the fractional-order Laplacian Operators,”Analog Int. Circuits & Sig. Proc., Vol. 82, No. 3, pp 503-517, March 2015.
  • R.El-Khazali, ”Fractional-Order   Controller Design,”Comp. & Math. With Applications,  Vol 66, No. 5, pp. 539-646, September 2013.
  • N. Tawalbeh and R. El-Khazali, “Peak Load Evaluation Based in the Accumulated Annual Energy,”  J. of Energy and Power Engineering No. 6, pp. 1758-1763, 2012.
  • R. El-Khazali and M.H.B.M. Shariff,” Double-Delay  Fractional and Integer-Order TanLock Loops,” Journal of Computers and Mathematics with Applications, Vol.59, No. 5, pp. 1874-1884, March 2010,
  • Wajdi M. Ahmad and R. El-Khazali,” Fractional-Order Dynamical Models of Love,” Chaos, Solitons and Fractals, No. 3, Vol.34, 2007,
  • Reyad El-Khazali, Wajdi M. Ahmad and Y. Al-Assaf, “Sliding Mode Control of Generalized Fractional Chaotic Systems,” Int. J. of Bifurcation and Chaos, Vol. 16,      No. 10  pp. 1-13, 2006,
  • A. Al-Dweik and R. El-Khazali, “A Modified Early-Late Gate for Blind Symbol Timing Recovery of OFDM Systems,” IEICE transactions On Communications, Vol. E89-B, No. 1, January 2006,
  • Y. Al-Assaf, R. El-Khazali and W. Ahmad, “Identification of fractional chaotic system parameters,” Journal of Chaos, Solitons and fractals, Vol. 22, No. 4, pp. 897- 905, November 2004,
  • Wajdi M. Ahmad, Reyad El-Khazali and Yousef Al-Assaf,” Stabilization of Generalized Fractional Order Chaotic Systems using State Feedback Control,” J. of Chaos, Solitons and fractals, Vol. 22, No. 1, pp. 141-150. Oct. 2004,
  • R. EL-Khazali, and S. Al-Momani, “Stability Analysis of Composite Fractional Systems”, International Journal of Applied MathematicsIJAM, Vol. 12, pp. No. 1, pp. 73-85, 2003,
  • W. Ahmad,R. El-Khazali, and A. El-Wakeel, “Fractional Wien-Bridge Oscillator, ”IEE Electronic letters, Vol. 37, pp. 1110-1112, August 2001,
  • S. Al-Momani, and R. El-Khazali,” On the Existence of the Extremal Solution of Integro-differential Equations of Fractional Order,” Journal of Fractional Calculus, Vol. 18, pp. 87-92, November 2000,
  • T.M. Al-Khamis, R. El-Khazali, M. Kablan, M., and M. Al-Hussein,” Heating of A Biogas Reactor using A Solar Energy System with Temperature Control Unit,” Solar Energy, Vol. 69, No. 3, pp. 239-247, 2000,
  • R El-Khazali, “Variable Structure Robust Control of Uncertain Time-Delay Systems,” Automatica, Vol. 34, No. 3, March 1998,
  • R. El-Khazali, “Stability Analysis of Perturbed Time-Delay Systems,” Journal  of Mutah University Lil-Buhuth Wad-Dirasat, Vol. 12, No., 2, pp. 227-246, 1997.
  • R. El-Khazali and R. DeCarlo, “Output Feedback Variable Structure Control Design,” Automatica. Vol., 31, No. 6, pp. 805-816, 1995,
  • N. Rousan and R. El-Khazali, “Pole Placement of Singularly Perturbed Systems using Output Feedback Control,” Journal of Mu’tah Lil-Buhuth wad-Dirasat,Vol.  10, No. 2, pp. 77 – 87, 1995.

Conference Papers

  • R. El-Khazali, “Design of IIR Digital Fractional-Order Differ-Integrators Using Closed-Form Discretization,” IEEE 58th Midwest Symp. Circ. & Sys. MWSCAS 2015, Accepted, Aug. 2-5, 2015, CO, USA
  • R. El-Khazali, “Discretization of Fractional-Order Differentiators and Integrators,” IFAC 2014 Congress, Cape Town, SA., 24-29, Aug, 2014,
  • R. El-Khazali, N. Tawalbeh, O. Al-Khatib, I. AbuShawish, “Performance Analysis of Fractional-Order Digital Phase-Locked Loop,”IFAC’14 int. Conf. , 23-25 June, 2014, Catania, Italy.
  • Gilmutdinov A.‌, Ushakov P.A., Gilmutdinov M.M.‌,, R. El-Khazali, “Fractional Complex-Order Operators: Synthesis and Implementation Criteria,” IFAC’14 int. Conf. , 23-25 June, 2014, Catania, Italy.
  • N. Tawalbeh, and R. El-Khazali, ”Analysis and Evaluation of Electrical Wiring Safety Requirements in Jordanian Residential Buildings,” IEEE AEECT 2013 Conf. Dec. 3-5, 2013,
  • R. El-Khazali, “Biquadratic Approximation of Fractional-Order Laplacian Operators,” IEEE 56th Midwest Symp. on Circ. & Sys. MWSCAS 2013, pp. 69-72, Aug. 4-7, 2013, OH, USA,
  • R. El-Khazali, ”On Fractional-Order PID controller Design,” 5th-IFAC Symposium on Fractional Differentiation and Application, May 14-17, 2012 China,
  • R. El-Khazali and N. Tawalbeh, “Realization of Fractional-Order Capacitor and Inductor,”  5th-IFAC Symposium on Fractional Differentiation and Application, May 14-17, 2012 China,
  • R. El-Khazali and N. Tawalbeh, “Multi-Machine Fractional-Order Power System Stabilizers,” 16th IEEE Mediterranean Electrotechnical Conf. , Melecon 2012, Tunisia,
  • N. Tawalbehand R. El-Khazali, “Peak Evaluation based on Annual Accumulated Energy,” 16th IEEE Mediterranean Electrotechnical Conf. , Melecon 2012, Tunisia.
  • R.El-Khazali, Z.A. Memon, and N. Tawalbeh,” Fractional-Order Power System Stabilizer”, 4th  IFAC Workshop on Fractional Differentiation and Applications (FDA’2010), Spain, Oct. 18-22, 2010.
  • 2008 Reyad El-Khazali and M.H.B.M. Shariff,” Fractional-Order TanLock Loops,” 3rd IFAC Workshop on Fractional Differentiation and Applications (FDA’08), Ankara, Turkey, 05 – 07 November, 2008
  • 2008 R. El-Khazali, “Fractional-Order Analog and Digital Phase-Locked Loop Design,” Workshop on Modeling and Analyzing Complex Interacting Systems (MACIS-II), 23-24 July, 2008, Al-Balqaa University-Jordan.
  • 2007 R. El-Khazali, “Fractional-Order Digital Phase-Locked Loop”, 10th IEEE Int. Conf. On Electr., Circuits and Syst. (ICECS), pp. 963-96611-14 December, 2007, Merrakesh, Morocco.
  • 2007 R. El-Khazali, W. Ahmad, and A. Memon, ”Noise Performance of Fractional-Order Phase-Locked Loop,” 2007 IEEE Int. Conf. on Signal Proc. and Comm. (ICSPC), 24-27 Nov., 2007, Dubai-UAE
  • 2007 R. El-Khazali, and W. Ahmad,” Fractional-Order Phase-Locked Loop” ISSPA’2007, 12 – 15 February 2007, Sharjah-UAE
  • 2006 R. El-Khazali, ”On the State Space Modeling of Fractional Systems,” 2nd IFAC Workshop on Fractional Differentiation and Applications (FDA’06), Porto, Purtugal, July 19-21 2006.
  • 2006 R. El-Khazali and W. Ahmad, ”Variable Structure Control of Fractional Time Delay Systems,” 2nd IFAC Workshop on Fractional Differentiation and Applications (FDA’06), Porto, Portugal, July 19-21 2006.
  • 2005 R. El-Khazali,” Output Feedback Sliding Mode Control of Fractional Systems,” The 12th Int. Conf. On Circuits and Systems, ICECS’05, December 11-14, Gammarth, Tunisia 2005.
  • 2005 Al-Dweik, R. El-Khazali, “A Variable Structure Early-Late Gate Symbol Synchronizer for Rapid Blind Timing Recovery of OFDM Systems,” 3rd Int. Conf.: Science of Electronics, Technologies of Information and Telecoms, SETIT’05, Tunisia, March 27-31, 2005.
  • 2004 R. El-Khazali, W. M. Ahmad, and Y. Al-Assaf, “Sliding Mode Control of Fractional Chaotic Systems”, First IFAC Workshop on Fractional Differentiation and its Applications, pp. 495-500, Bordeaux, France, July 19-21, 2004.
  • 2004 W. M. Ahmad, and R. El-Khazali,” On Frequency Response of Fractional-Order Sallen-Key Filters,” First IFAC Workshop on Fractional Differentiation and its Applications, pp. 571-574, Bordeaux, France, July 19-21, 2004.
  • 2003 H. Al-Ahmad, and R. El-Khazali, “A New Technique For Initializing of Digital IIR Filters at Two Frequencies”, ICECS’ 03, Sharjah-UAE, pp. 64-67, Dec. 17-21, 2003.
  • 2003 A. Al-Qayedi, R. El-Khazali, A. Zahro, and S. Al-Shamsi, “Secured Centralized Mobile and Web-Based Control System using GPRS with J2ME”, ICECS_03, Sharjah-UAE, pp. 667-670, Dec. 14-17, 2003.
  • 2003 W. M. Ahmad, and R. El-Khazali, “Fractional-Order Passive Low-Pass Filters”, ICECS‘03, Sharjah-UAE, pp. 160-163, Dec. 17-21, 2003.
  • 2002 R. EL-Khazali, “Fractional Systems Variable Structure Control”, IASTED Int. Conf. on Control and Application, CA 2002, Cancun Mexico, pp. 154-160, May 20-22, 2002.
  • 2002 R. El-Khazali, M. Al-Mualla, and H. Alahmad, “Fractional IIR Filters”, Fourth Middle East Symposium on Simulation and Modeling, AUS, Sharjah, UAE, September 2002.
  • 2001 R. El-Khazali, and S. Al-Momani,” Stability Analysis of Fractional Systems,” Int. Conf. on Systems and Control (ISC), Florida, USA, Nov. 19-22, 2001.
  • 1997 R. El-khazali and N. Rousan, ” Schur Stability of Interval Matrices,” 2nd Regional Conf. for CIGRE Comm., Amman-JORDAN, May 22-24, 1997.
  • 1995 R. El-Khazali, “Robust Stabilization of Uncertain Time-Delay Systems using Variable Structure Output Feedback Control”, Proceedings of the 1995 American Control Conf., Vol. 6, pp. 4236-7, June 1995.
  • 1995 R. El-Khazali, “Improved Stability Measures of Uncertain Time-Delay Systems,” IEEE Int. Conf. on Electronics, Circuits and Systems (ICECS’95), Amman- Jordan, December 17-21, 1995.
  • 1994 R. El-Khazali, C. Heydt and R. DeCarlo, ” Stabilization of Power Systems using Variable Structure Output Feedback Control,” Proc. ACC Conf., pp. 1183-7 vol. 1, June 1994.
  • 1993 R. El-Khazali, and R. DeCarlo, “Output Feedback Variable Structure Control Design using Dynamic Compensator for Linear Systems,” Proc. ACC Conf., pp. 954-958 vol.1, June 1993.
  • 1992 R. El-Khazali, and R. DeCarlo, “Variable Structure Output Feedback Control,” Proc. ACC. Conf., pp. 871-875, vol. 1, June 1992.
  • 1992 R. El-Khazali, and R. DeCarlo,” Variable Structure Output Feedback Control: Controller Design,” Tenth annual conference, System and Control, Ohio State University, April, 1992.
  • 1992 R. El-Khazali, P. Peleties, and R. DeCarlo,” Variable Structure Process Control,” 1st-IEEE Conference on Control Applications, pp. 78-83, Vol. 1, Sept. 13-16, 1992
  • 1991 R. El-Khazali, and R. DeCarlo,” Variable Structure Output Feedback Control: Switching Surface Design,” Proc. of the Twenty-Ninth annual Allerton Conf. on Communication, Control, and Computing, Monticello, Ill., Sept. 1991.

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