Dr. Kajal Kothari

Dr. Kajal Kothari

Position: Assistant Professor
School: School of Electrical & Electronics Engineering
Email: kajal.kothari@fnu.ac.fj
Campus: Derrick Campus – Samabula
Phone: 3381044 ext. 1508

Biography:

Dr. Kajal Kothari is an Assistant Professor at the School of Electrical and Electronics Engineering at Fiji National University.
Dr. Kothari is actively engaged in electrical and electronics engineering programs, national and international accreditation, program review, and research in the field of applying fractional calculus for system identification and control.

Qualification:

  • Doctor of Philosophy in Engineering, University of the South Pacific (USP) – Laucala Campus, Suva, Fiji.
  • Master of Technology in Communication Systems, Sardar Vallabhbhai National Institute of Technology (SVNIT), Gujarat, India.
  • Bachelor of Engineering in Electronics and Communication, Veer Narmad South Gujarat University, Gujarat, India.

Area of Expertise:

  • System modeling and identification
  • Fractional systems and control
  • Supercapacitor modeling
  • Fractional filter design
  • Image processing
  • Communication

Journals:

  • K. Kothari, “Application of Fractional Calculus for Parameter Estimation of Nonlinear Wiener Systems With Time Delay,” in IEEE Access, vol. 12, pp. 26281-26294, 2024, doi: 10.1109/ACCESS.2024.3367441. – Q1
  • Kothari K., Mehta U. and Vanualailai J., “A novel approach of fractional-order time delay system modeling based on Haar wavelet” ISA Transactions, vol. 80, 371-380, 2018. – Q1
  • Kothari K., Prasad R. and Mehta U., “Generalized formulation to estimate the Supercapacitor’s R-C series impedance using fractional order model”, Alexandria Engineering Journal, 60(6), pp. 5851-5859, 2021. – Q1
  • K. Kothari, U. Mehta, V. Prasad and J. Vanualailai, “Identification scheme for fractional Hammerstein models with the delayed Haar wavelet,” in IEEE/CAA Journal of Automatica Sinica, vol. 7, no. 3, pp. 882-891, May 2020, doi: 10.1109/JAS.2020.1003093. – Q1
  • Kothari K., Mehta U. Prasad R, “Fractional-order system modeling and its applications”, Journal of Engineering Science and Technology Review, vol. 12(6), 1-10, 2019. – Q4
  • Kothari K. and Mehta U., “Fractional-order two-input two-output process identification based on Haar operational matrix”, International Journal of Systems Science, DOI: 10.1080/00207721.2020.1857503. – Q1
  • Kothari K., Mehta U. and Prasad R., “A single-step identification strategy for the coupled TITO process using fractional calculus”, Transactions of the institute of measurement and control, 2021, doi: 10.1177/0142331221992732. – Q3
  • Prasad R., Kothari K. and Mehta U., “Flexible fractional supercapacitor model analyzed in time domain” IEEE Access, vol. 7, 122626-122633, 2019. – Q1
  • Prasad V., Kothari K. and Mehta U., “Parametric Identification of Nonlinear Fractional Hammerstein Models” Fractal Fract 2020, 4, 2. – Q2
  • Narayan S., Mehta U., Iro R., Sikwa’ae H., Kothari K., Singh N.,”Realization of fractional band pass filter on reconfigurable analog device”, International Review of Applied Sciences and Engineering, 13(1), pp. 63-69, 2021. – Q2
  • R Prasad, U Mehta, K Kothari, Fractional impedance of supercapacitor: an extended investigation, International Journal of Dynamics and Control 9, 1277-1284. – Q2
  • Prasad R., Mehta U. and Kothari K., “Various analytical models for supercapacitors: A mathematical study” Resource-efficient technologies, vol. 1, 1-15, 2020.
  • Singh N., Mehta U., Kothari K, Cirrincione M., “Optimized fractional low-and high-pass filters of order (1+α) on FPAA”, Bulletin of the Polish Academy of Sciences, Technical Sciences, 68 (3). pp. 635-644. ISSN 0239-7528. – Q3
  • J.N. Sarvaiya, S. Patnaik, K. Kothari, Image registration using log polar transform and phase correlation to recover higher scale, J. Pattern Recognition Res. 7 (1) (2012) 90–105.

Book and Book Chapters:

  • Narayan, S., Akwai, V., Weago, S., Kothari, K. (2022). Practical Realization of Fractional-Order Notch Filter with Asymmetric Slopes and Optimized Quality Factor. In: Mehta, U., Bingi, K., Saxena, S. (eds) Applied Fractional Calculus in Identification and Control. Studies in Infrastructure and Control. Springer, Singapore.

Conference:

  • Singh N, Kothari K, Kumar S, Assaf M “Review on the enhancement of 5G communications using LEO satellites”, 8th International Conference on Inventive Communication and Computational Technologies (ICICCT – 2024).
  • Kothari K., Mehta U. and Vanualailai J., “Fractional-Order Models of Time Delay Systems Using Walsh Operational Matrices” in 15th IEEE Conference on Control, Automation, Robotics and Vision (ICARCV), 2018, pp. 1555-1560.
  • Kothari K., Mehta U. and Singh N., “Practical Test for Closed-Loop Identification and Control on Magnetic Levitation System: A Fractional-Order Approach” in 15th IEEE Conference on Control, Automation, Robotics and Vision (ICARCV), 2018, pp. 1805-1810.
  • Prasad R., Kothari K., Mehta U., Cirrincione M., and Mohammadi A., “Supercapacitor Parameter Identification Using Grey-Wolf Optimization and Its Comparison to Conventional Trust Region Reflection Optimization” in IEEE International Aegean Conference on Electrical Machines and Power Electronics (ACEMP) & International Conference on Optimization of Electrical and Electronic Equipment (OPTIM), 2019.

Teaching interest:

  • Digital Signal Processing
  • Engineering Electromagnetics
  • Mobile and Personal Communication
  • Digital Communication
  • Mechatronics
  • Image Processing
  • Fiber Optic Communication
  • Signals and systems
  • Wireless Communication
  • Analog and Digital Electronics

Research interest:

  • System Modeling
  • Fractional order system identification and control
  • Image processing
  • Supercapacitor modeling
  • Fractional filter design
  • LEO satellites and 5G communication