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Personal Information

Name: Mehdi
Surname: Bekrani
Contact Address: Faculty of Electrical and Computer Engineering, Qom University of Technology, Qom, Iran

Place of Birth: Gorgan, Iran


E-Mail: bekrani@gmail.com, bekrani@qut.ac.ir

 

Education

 

  • 2004-2010,   Ph.D. in Electrical Engineering, Tarbiat Modares University, Tehran, Iran.

Field: Signal Processing.

Thesis Title: New Approaches for Improvement of the Performance of Adaptive Stereo Acoustic Echo Cancellers

Advisor: Prof. Mojtaba Lotfizad

  • 2001-2003,   M.Sc. in Electrical Engineering, Tarbiat Modares University, Tehran, Iran.

Field: Signal Processing.

Thesis Title: Investigation of Spectral Subtraction Method and Reducing Resultant Musical Noise 

Advisor: Prof. Mojtaba Lotfizad

  • 1997-2001,   B.Sc. in Electrical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.

Field: Electronics.

Thesis Title: Investigation of Picture-In-Picture (PIP) System in Digital Televisions

Advisor: Prof. Ali Bayat-Mokhtari

 

 

Current Position  

Assistant Prof., Qom University of Technology, Qom, Iran

 

Research Interests

 Audio, Speech and Ultrasonic Signal Processing, including:

  • Beamforming
  • Equalization and Dereverberation
  • Echo and Feedback Cancellation
  • Speech Enhancement
  • Blind Source Separation
  • Active Noise Control
  • Ultrasonic Phased Arrays
  • Microphone Arrays
  • Acoustic Source Reconstruction
  • Soundfield Control
  • Adaptive Filtering

 

Professional Experience

 

  1. Assistant Professor, Faculty of Electrical and Computer Engineering, Qom University of Technology, Feb. 2013-Present.
  2. Director of Telecommunications and Electronics Group, Qom University of Technology, Dec. 2019-Present.
  3. Lecturer, University of Science and Culture & Islamic Azad University, 2007-2019.
  4. Researcher, Niroo Research Institute, Jun. 2016 – Aug. 2018.
  5. Researcher, TP Electronics and Telecommunications Research Center, May 2013 - Aug. 2014,
  6. Post-doctoral Research Fellow, Nanyang Technological University, Singapore, Feb. 2011 - Dec. 2012.
  7. Visiting Researcher, Nanyang Technological University, Singapore, Mar. 2009 - Sep. 2009.
  8. Reviewer for the journals:
  • IEEE/ACM Transactions on Audio, Speech, and Language Processing
  • IEEE Transactions on Signal Processing
  • Multidimensional Systems and Signal Processing
  • Circuits, Systems and Signal Processing
  • Electronics Letters
  • International Journal of Electronics and Communications
  • Signal and Data Processing
  • Journal of Modeling in Engineering
  • Iranian Journal on Electrical and Computer Engineering
  • Journal of Iranian Association of Electrical and Electronics Engineers
  • Journal of Engineering Management and Soft Computing
  • Modeling and Simulation in Electrical and Electronics Engineering

  

Teaching Experience

Undergraduate Courses:

  • Pulse Techniques
  • Electrical Circuits I
  • Electronics I, II
  • Filter and Synthesis
  • Digital Electronics
  • Signals and Systems
  • Digital Design
  • Electrical Measurement

 

Graduate Courses:

  • Adaptive Filters
  • Digital Signal Processing
  • Digital Image Processing
  • VLSI Circuit Design
  • CMOS Analog Integrated Circuit Design
  • Acoustic and Ultrasonic Signal Processing

  

Laboratory Experience

 

  • Pulse Techniques
  • Electrical Measurement
  • Electronics I & II
  • Digital Design
  • Communication Circuits

 

 Software and Programming Skills

                   IC Design and Simulation: HSpice, ADS

                  Circuit Design and Simulation: PSpice, Proteus

                  Programming Language: MATLAB, Python, C++

                  Other softwares: Latex, Office, Adobe Acrobat, Adobe Photoshop, etc.

                   

 Publications

Journal Papers:

1. Bekrani, M. M. Taskhiri, S. A. Asayesh, “A Low Noise UWB Amplifier Using an Inverter with Inductive Peaking Technique”, Applied Electromagnetics, Vol. 10, No. 1, Winter and Spring 2022.

2. Bekrani, S. Rezaeizadeh, “Minimum Variance Beamforming Based on Covariance Matrix Reconstruction Using Orthogonal Vectors”, Journal of Engineering Management and Soft Computing, Vol. 6, No. 1, May 2020, pp. 139-164.

3. Bekrani, “Design and Analysis of an Improved LMS/Newton Adaptive Algorithm for Acoustic Echo Cancellation”, Iranian Journal of Electrical and Computer Engineering, Vol. 18, No. 2, Summer 2020, pp. 105-116.

4. Bekrani, S. T. Behrooz, M. Heydari, “An Adaptive Control Method using Interval Fuzzy Sliding Mode for Direct Matrix Converters”, International Journal of Industrial Electronics, Control and Optimization, Vol. 3, No. 2, Spring 2020, pp. 159-171.

5. Bekrani, V. H. Vaghef, “A Modified Ultrasonic Imaging Method for Weld Inspection”, Journal of Iranian Association of Electrical and Electronics Engineers, Vol. 17, No. 1, Spring 2020, pp. 45-59.

6. Bekrani, "Phased Array Ultrasonic Imaging using An Improved Beamforming-based Total Focusing Method for Non-Destructive Test”, Journal of welding science and technology, Vol. 6, No. 1, 2020, pp. 115-132.

7. Bekrani, R. Bibak, M. Lotfizad, “Improved Clipped Affine Projection Algorithm”, IET Signal Processing, Vol. 13, No. 1, Feb. 2019, pp. 103 –111.

8. Salehi, M. Bekrani, H. Zayyani, M. M. Taskhiri, “A Fully Differential Ultra Wideband Common-Gate Low Noise Amplifier”, Electronics Industries, Vol. 10, No. 3, Autumn 2019, pp. 43-58.

9. Bekrani, “Convergence Performance Improvement of Affine Projection Adaptive Algorithm for Sparse Linear System Modeling with Correlated Input Signals, Journal of Modeling in Engineering, Vol. 17, No. 58, Autumn 2019, pp. 171-186.

10. H. Vaghef, M. Bekrani, “Implementation of Ultrasonic Imaging System using Phased Arrays”, Nondestructive Testing Technology, Vol. 2, No. 3, pp. 23-31, 2019.

11. Bekrani, V. H. Vaghef, “Designing a Graphical User Interface for Ultrasonic Non-Destructive Testing”, Journal of Sound and Vibration, Vol. 7, No. 13, pp. 82-103, 2018.

12. Bekrani, H. Zayyani, "A Weighted Soft-Max PNLMS Algorithm for Sparse System Identification," International Journal of Information & Communication Technology Research, Vol. 8, No. 3, pp. 7-14, Summer 2016.

13. Bekrani, M. Lotfizad, “Clipped LMS/RLS Adaptive Algorithms: Analytical Evaluation and Performance Comparison with Low-Complexity Counterparts," Circuits, Systems and Signal Processing, Vol. 34, No. 5, pp. 1655–1682, May 2015.

14. Bekrani, A. W. H. Khong, M. Lotfizad, “A Linear Neural Network based Approach to Stereophonic Acoustic Echo Cancellation,” IEEE Transaction on Audio, Speech, and Language Processing, Vol. 19, No. 6, pp. 1743- 1753, Aug. 2011.

15. Bekrani, A. W. H. Khong, M. Lotfizad, “A Clipping-based Selective-Tap Adaptive Filtering Approach for Stereophonic Acoustic Echo Cancellation,” IEEE Transaction on Audio, Speech, and Language Processing,, Vol. 19, No. 6, pp. 1826- 1836, Aug. 2011.

16. Bekrani, M. Lotfizad, “Performance Analysis of Three-Level Clipping-based LMS Algorithm in the System Identification Application,” Journal of Electrical Engineering-Modares, Vol. 10, No. 2, pp. 17-29, Jul. 2010.

17. Bekrani, M. Lotfizad, “Stereo Acoustic Echo Cancellation using MIMO Decorrelation Network-based NLMS Adaptive Filter," Iranian Journal on Electrical and Computer Engineering, Vol. 8, No. 2, pp. 123-130, Summer 2010.

18. Bekrani, M. Lotfizad, “A Modified Wavelet-domain Adaptive Filtering Algorithm for Stereophonic Acoustic Echo Cancellation in the Teleconferencing Application,” International Journal of Information & Communication Technology, Vol. 1, No. 1, pp. 29-37, Mar. 2009.

19. Bekrani, M. Lotfizad, “A New Method of Stereophonic Acoustic Echo Cancellation Employing Clipped-Input Adaptive Algorithm," Journal of Iranian Association of Electrical and Electronics Engineers, Vol.6, No.2, pp. 25-39, Fall/Winter 2009.

20. Bekrani, H. Sadoghi Yazdi, M. Lotfizad, “Speech Enhancement Using Modified Multi-Band Spectral Subtraction Method,” Iranian Journal on Electrical and Computer Engineering, Vol. 4, No. 1, pp. 22-30, May 2005.

21. H. Vaghef, M. Bekrani, “A New Method for Design and Implementation of Boiler Tube Weld Inspection using Ultrasonic Phased Array", Electronics Industries, Under review, 2022.

22. Bekrani, V. H. Vaghef, “Ultrasonic Imaging based on Approximated Minimum Variance Beamforming and Its Application in Non-Destructive Test of Boiler Tubes”, Journal of Iranian Association of Electrical and Electronics Engineers, Under review, 2022.

Conference Papers:

1. Kavand, M. Bekrani, “Ultrasonic Image Quality Enhancement using Spatial Filters and Convolutional Neural Network,” in Proc. 5th National Conf. on Computer, Information Technology and Applications of Artificial Intelligence, Mar. 2022.

2. Bekrani, A. H. T. Nguyen, and A. W. H. Khong, “An Adaptive Non-Linear Process for Under-Determined Virtual Microphone Beamforming,” in Proc. IEEE Int. Conf. Acoustics Speech Signal Processing, pp. 4495-4499, June 2021.

3. Garousi, M. Bekrani, “Ultrasonic Image Denoising using A New Logistic Function Based Wavelet Thresholding,” in Proc. 5th National Conf. on Technology in Electrical and Computer Engineering, July 2021.

4. Shakey, M. Bekrani, H. Zayyani, “Accuracy Improvement of Phased-Array Non-Destructive Tests using Compressed Sensing Methods,” in Proc. 4th National Conference on New Technologies in Electrical and Computer Engineering, Sept. 2021.

5. M. Moallemi, M. Bekrani, “Performance Improvement of Photovoltaic Systems using Boost Converter and Adaptive Neuro-Fuzzy Network,” in Proc. 5th National Conf. on Technology in Electrical and Computer Engineering, July 2021.

6. Bekrani, A. W. H. Khong, “A Delayless Sub-band PNLMS Adaptive Filter for Sparse Channel Identification,” in Proc. 28th Iranian Conf. on Electrical Engineering, Aug. 2020.

7. Mohagheghian, M. Bekrani, “Sparse System Identification using Adaptive Set-Membership Partial Update PNLMS Algorithm,” in Proc. 6th Iranian Conf. on Signal Processing and Intelligent Systems, Dec. 2020.

8. Garousi, M. Bekrani, “Improvement of Ultrasonic Imaging in Non-Destructive Test using Coherence Weighting and Thresholding in Wavelet Domain,” in Proc. 6th Iranian Conf. on Signal Processing and Intelligent Systems, Dec. 2020.

9. Jourabchi, M. Bekrani, M. Solaimani, "Integrated enhancement of the absorption spectrum of the optical structure of magnetic absorbent based on molybdenum disulfide using physical geometry changes", in Proc. 5th Conf. on Electrical and Computer Engineering Technology 2020.

10. Bekrani, V. H. Vaghef, “Phased Array Ultrasonic Imaging using an Approximation of Minimum Variance Beamforming Method”, in Proc. 11th Iranian and 1st International Conf. on Machine Vision and Image Processing, Feb. 2020.

11. Davarzani, M. Bekrani, R. Rajabi, "A Low-Power Phase Detector Design Based on the Current Mode Technique Using Dead-Zone Reduction", in Proc. 6th Iranian Congress on Electrical and Computer Engineering with an Applied Perspective on New Energies, May 2019.

12. A. Asayesh, M. Bekrani, M. M. Taskhiri, "A UWB-LNA Design using Inverting Approach with Inductive Peaking Technique ", in Proc. 6th Iranian Congress on Electrical and Computer Engineering with an Applied Perspective on New Energies, May 2019.

13. Zandi, M. Hatami, M. Bekrani, "Noise-robust Text Independent Speaker Identification in Persian Language based on Adaptive Formant Estimation and Mel Frequency Cepstral Coefficients", in Proc. 4th Conf. on Electrical and Computer Engineering Technology, May 2019.

14. H. Vaghef, M. Bekrani, "Design and Implementation of an Ultrasonic Imaging System for Boiler Tubes Weld Inspection", in Proc. 33rd International Power System Conference, Oct. 2018.

15. H. Vaghef, M. Bekrani, M. Rezaei, B. Abdoli, “Design and Implementation of an Ultrasonic Imaging System Using Phased Array Technology", in Proc. 5th Iranian International NDT Conference, Nov. 2018.

16. Bekrani, V. H. Vaghef, “An Improved Synthetic Aperture Focusing Technique for Ultrasonic Imaging in NDT using Phase Array”, in Proc. Iranian Conf. on Electrical Engineering, May. 2018.

17. Ghazanfari, M. Bekrani, “A new Method for Convergence Performance Improvement of Affine Projection Adaptive Algorithm”, in Proc. Iranian Conf. on Mathematical Physics, Qom, Dec. 2017.

18. Bekrani, A. W. H. Khong, “A Robust MINT Equalization Algorithm Based On Near-Common Zero Concept,” in Proc. 25th Iranian Conf. on Electrical Engineering, May 2017.

19. T. Behrooz, M. Bekrani, M. Heydari, “Fuzzy Type-2 Sliding Mode Control of Matrix Converter Using Indirect Space Vector Modulation”, in Proc. 8th Power Electronics, Drive Systems & Technologies Conference, Feb. 2017.

20. Bekrani, V. H. Vaghef, “Improvement of Ultrasonic Image Quality in Non-Destructive Testing Using a Modified Minimum Variance Method”, in Proc. 10th Iranian Conf. on Machine Vision and Image Processing, Nov. 2017.

21. Bekrani, V. H. Vaghef, “A new Method of Ultrasonic Imaging and Defect Detection using Phased Arrays” in Proc. Iranian Conf. on Mathematical Physics, Qom, Nov. 2016.

22. T. Behrouz, E. Najafi, M. Bekrani, "Cuckoo Optimization Algorithm Neural Network Control for Shunt Active Power Filter to improve power Quality", in Proc. 7th Power Electronics, Drive Systems and Technologies Conference, Feb. 2016.

23. Bekrani, H. Zayyani, "An Improved Continuous Mixed p-norm Adaptive Algorithm for Sparse System Identification," in Proc. Int. Conf. in New Research of Electrical Engineering and Computer Science, Jul. 2015.

24. Bekrani, A. W. H. Khong, “Misalignment Analysis and Insights Into the Performance of Clipped-Input LMS with Correlated Gaussian Data,” in Proc. IEEE Int. Conf. Acoustics Speech Signal Processing, pp.5929-5933, May 2014.

25. Bekrani, H. Zayyani, “A Soft-Max PNLMS Algorithm for Identification of Sparse System,” in Proc. First National Conf. on Electrical and Computer North Iran, pp.1-8, Jun. 2014.

26. Bekrani, A. W. H. Khong, “Convergence Analysis of Clipped Input Adaptive Filters Applied to System Identification,” in Proc. IEEE Asilomar Conf. Signals, Systems and Computers, pp. 801-805, Nov. 2012.

27. Li, M. Bekrani, A. W. H. Khong, “Acoustic Source Reconstruction using Efficient Adaptive Inverse Approach,” in Proc. Int. Conf. on Signal Processing Systems, pp. 142–146, Aug. 2011.

28. Bekrani, A. W. H. Khong, “Performance Analysis and Insights into the Clipped Input Adaptive Filters Applied to System Identification,” in Proc. Int. Conf. on Signal Processing Systems, pp. 232–236, Aug. 2011.

29. Bekrani, M. Lotfizad, “Misalignment Analysis of Two-Channel NLMS Adaptive Filters in Stereophonic Acoustic Echo Cancellation,” in Proc. 15th Int. CSI Computer Conference, Mar. 2010.

30. Bekrani, M. Lotfizad, “Weight Misalignment Analysis of RLS-based Multi-Channel FIR Adaptive Filters,” in Proc., 18th Iranian Conf. on Electrical Engineering, pp. 3003-3008, May. 2010.

31. Bekrani, A. W. H. Khong, M. Lotfizad, “A Clipping-based Adaptive Filtering Approach for Stereophonic Acoustic Echo Cancellation,” in Proc. IEEE Int. Conf. Acoustics Speech Signal Processing, pp.337-340, Mar. 2010.

32. Bekrani, A. W. H. Khong, M. Lotfizad, “A New Partial Update NLMS for Stereophonic Acoustic Echo Cancellation,” in Proc. European Signal Processing Conference, pp. 11-15, Aug. 2010.

33. Bekrani, A. W. H. Khong, M. Lotfizad, “Neural Network based Adaptive Echo Cancellation for Stereophonic Teleconferencing Application,” in Proc. Int. Conf. on Multimedia and Expo, pp. 1172-1177, Jul. 2010.

34. Bekrani, M. Lotfizad, A. W. H. Khong, “An Efficient Quasi LMS/Newton Adaptive Algorithm for Stereophonic Acoustic Echo Cancellation,” in Proc. IEEE Asia Pacific Conf. on Circuits and Systems, pp. 684-687, Dec. 2010.

35. Bekrani, M. Lotfizad, “A Modified NLMS Adaptive Algorithm for Stereophonic Acoustic Echo Cancellation,” in Proc. First National Acoustic Conference (Nac2009), May 2009.

36. Bekrani and M. Lotfizad, “A Hybrid Clipped/Unclipped Input Adaptive Filtering Scheme for Stereophonic Acoustic Echo Cancellation,” in Proc. 17th Iranian Conf. on Electrical Engineering, vol. 4, pp. 559-563, May 2009.

37. Bekrani and M. Lotfizad, “An Improved Selective-Tap Adaptive Algorithm for Stereophonic Acoustic Echo Cancellation,” in Proc. 17th Iranian Conf. on Electrical Engineering, vol.4, pp. 564-568, May 2009.

38. Bekrani, M. Lotfizad, “A Modified Wavelet-domain Adaptive Filtering Algorithm for Stereophonic Acoustic Echo Cancellation in the Teleconferencing Application,” in Proc. 4th Int. Symposium on Telecommunications, pp. 548-554, Aug. 2008.

39. Bekrani, M. Lotfizad, “A New Method for Stereophonic Acoustic Echo Cancellation using Neural Network-based Adaptive Filtering,” in Proc. 2nd Joint Congress on Fuzzy and Intelligent Systems, Oct. 2008.

40. Bekrani and M. Lotfizad, “A Wavelet Thresholding Approach for Signal Decorrelation in the Stereophonic Acoustic Echo Cancellation Application,” in Proc. 9th Int. Conf. on Signal Processing, pp. 2681-2683, Oct. 2008.

41. Bekrani, H. Sadoghi Yazdi, M. Lotfizad, “Estimation of Variance of the Speech Signals using Estimated SNR and Variations of Zero-Crossing Rate for Speech Enhancement,” in Proc. 11th Int. CSI Computer Conference, Jan. 2006. 

42. Bekrani, H. Sadoghi Yazdi, M. Lotfizad, “Multi Band Spectral Subtraction with Adaptive Averaging for Speech Enhancement,” in Proc. 10th Annual Conf. on Computer, May 2005. 

43. Bekrani, M. Lotfizad, “New Method of Spectral Subtraction with Adaptive Noise Estimator for Speech Enhancement,” in Proc. 10th Annual Conf. on Computer, May 2005. 

44. Bekrani, M. Yargholi, "Low-Power Low-Noise Neural Amplifier," in Proc. 7th Iranian Student Conf. on Electrical Engineering, Sep. 2004.

Books:

1. M. Bekrani, R. Rajabi, "Adaptive Filters, Fundamentals of Least Mean Squares with MATLAB", Translation, QUT Press, 2021.

2. M. Bekrani, V. H. Vaghef, "Phased Array Ultrasonic Imaging, Case Study: Weld Inspection of Boiler Tubes", Niroo Research Institute Press, 2022.