P. Sumathi - Department of Electrical Engineering,Indian Institute of Technology Roorkee
P. Sumathi
P. Sumathi Professor p.sumathi@ee.iitr.ac.in 01332-285259
Areas of Interest
  • Advanced driver assistance systems, Image processing, DFT with sliding windows, warning systems, Sensors, Interfacing circuits for smart sensors, Control and signal processing, phase locking schemes, sliding DFT filters, multi-component decomposition, Instrumentation, vibration measurement, capacitance measurement, ultrasonics, Parameter esitmation, on-line estimation of sinusoidal and exponentially decaying sinusoidal signal parameters
Professional Background
2020-08-10OngoingProfessorDepartment of Electrical Engineering, Indian Institute of Technology Roorkee
2018-08-014 months Visiting Associate ProfessorAsian Institute of Technology, Bangkok
2015-11-264 years 8 months Associate ProfessorDepartment of Electrical Engineering, Indian Institute of Technology Roorkee
2011-05-044 years 6 months Assistant ProfessorDepartment of Electrical Engineering, Indian Institute of Technology Roorkee
2009-11-011 year 5 months Assistant ProfessorDepartment of Information and Communication Technology, DAIICT, Gujarat
Multiple Posts
2020-10-01OngoingAssociate Dean Faculty AffairsIIT Roorkee
Educational Details
Ph.D.Electrical EngineeringIndian Institute of Technology Madras, Chennai2009
M.E.Control and InstrumentationCollege of Engineering Guindy, Anna University, Chennai2002
B.E.Electrical and Electronics EngineeringS.R.M. Engineering College, Chennai1996
Sponsored Research Projects
TopicFunding AgencyStart DatePeriod
Integrated Resistance and Capacitance Measurement System Based on Field Programmable Gate ArrayCSIR2019-082 years 11 months
Field Deployable Signal Processing System for Measurement of Path Integrated Gas ConcentrationDRDO2015-0711 months
Active Vibration Control of Single-Link Flexible manipulatorDST2012-122 years 11 months
  • Senior Member, IEEE
Teaching Engagements
TitleCourse CodeClass NameSemester
Advances in Signal and Image processingEEN-626M.TechSpring
FPGA Implementation of Signal Processing SystemsEEN-611M.TechAutumn
Virtual InstrumentationEEN-625M.Tech and B.TechSpring
Advanced Digital System DesignEEN-682M.Tech and B.TechAutumn
Digital Signal and Image ProcessingEEN-521M.TechAutumn
PHDs Supervised
TopicScholar NameStatus of PHDRegistration Date
Design and Fabrication of Capacitive Sensor for fF Range with Digital Interfacing CircuitOm Prakash MauryaO2019-07-12
Vision Based Advanced Driver Assistance SystemsSukumar NagineniO2018-07-06
Capacitance to Frequency Conversion Based on Recursive Discrete Fourier TransformTushar TyagiA2015-01
Vibration Parameter Estimation Technique for Ultrasonic Measurement SystemsKsh. Milan SinghA2013-01
Time-frequency Analysis of Seismic SignalsRoshan KumarA2011-01
Refereed Journal Papers
  1. Amit Kumar Viswakarma, Sukumar Nagineni, P. Sumathi, "Two-Dimensional DFT with Sliding and Hopping Windows for Edge Map Generation of Road Images," IET Image Processing, pp. 1-13, Mar. 2021 .
  2. Tushar Tyagi and P. Sumathi, "Finer Granularity DFT Bins with Moving Window for Capacitance Sensing," IEEE Transactions on Industrial Informatics, vol. 17, no. 1, pp. 504 - 513,  Jan. 2021.
  3. Tushar Tyagi and P. Sumathi, "Frequency estimation techniques in capacitance-to-frequency conversion measurement," Review of Scientific Instruments, 91, no. 1, 015005, Jan. 2020.
  4. Tushar Tyagi and P. Sumathi, "Comprehensive Performance Evaluation of Computationally Efficient Discrete Fourier Transforms for Frequency Estimation," IEEE Transactions on Instrumentation and Measurement, vol. 69, no. 5,  pp.  2155 - 2163, May 2020.
  5. Tushar Tyagi and P. Sumathi, "Frequency Estimation based on Moving-Window DFT with Fractional Bin-Index for Capacitance Measurement," IEEE Transactions on Instrumentation and Measurement, vol. 68, no. 7, pp. 2560 - 2569, July 2019.
  6. Shikha Tomar and P. Sumathi, "Amplitude and Frequency Estimation of Exponentially Decaying Sinusoids," IEEE Transactions on Instrumentation and Measurement, vol. 67, no. 1, pp. 229 - 237, Jan. 2018.
  7. Roshan Kumar, P. Sumathi, and Ashok Kumar, "Synchrosqueezing Transform-Based Frequency Shifting Detection for Earthquake-Damaged Structures," IEEE Geoscience and Remote Sensing Letters, vol. 14, no. 8, pp. 1393 - 1397, Aug. 2017.
  8. Udaya Joshi and P. Sumathi, "Sliding Discrete Fourier Transform Based Frequency-Locked Loop for Adaptive Carrier Tracking of Bi-Phase Signals," IET Communications, vol. 10, no.18, pp. 2649 - 2655, Dec. 2016.
  9. Ksh. Milan Singh and P. Sumathi,  "Moving-Window DFT based Frequency-Locked Loop for FM demodulation," IEEE Communications Letters, vol. 20, no. 5, pp. 898-901, May 2016.
  10. Jinti Hazarika and P. Sumathi, "Moving Window Filter Based Frequency-Locked Loop for Capacitance Measurement," IEEE Transactions on Industrial Electronics, vol. 62, no. 12, pp. 7821 - 7823, Dec. 2015.
  11. Ksh. Milan Singh and P. Sumathi, "Synchronization Technique for Doppler Signal Extraction in Ultrasonic Vibration Measurement Systems," IEEE Transactions on Instrumentation and Measurement, vol. 64, no. 12, pp. 3162 - 3172, Dec. 2015.
  12. P. Sumathi and Ksh. Milan Singh, "Sliding discrete Fourier transform-based mono-component amplitude modulation-frequency modulation signal decomposition," IET Communications, vol. 9, no. 9, pp. 1221 - 1229, June 2015.
  13. Chandrashekhar Shitole and P. Sumathi, "Sliding DFT-Based Vibration Mode Estimator for Single-Link Flexible Manipulator," IEEE/ASME Transactions on Mechatronics, vol. 20, no. 6, pp. 3249 - 3256, Dec. 2015.
  14. Ksh. Milan Singh and P. Sumathi, "Vibration Parameter Estimation Methods for Ultrasonic Measurement Systems- A Review," IET Science, Measurement and Technology, vol. 9, no. 4, pp. 492 - 504, July 2015.
  15. Sarita Mishra, Debasmit Das, Roshan Kumar, and P. Sumathi, "A Power-Line Interference Canceler Based on Sliding DFT Phase Locking Scheme for ECG Signals," IEEE Transactions on Instrumentation and Measurement, vol. 64, no. 1, pp.132 - 142, Jan. 2015.
  16. P. Sumathi, “A Frequency Demodulation Technique based on Sliding DFT Phase Locking Scheme for Large Variation FM Signals,” IEEE Communications Letters, vol. 16, no.11, pp. 1864 - 1867, Nov. 2012.
  17. P. Sumathi, P. A. Janakiraman, “Phase locking scheme based on look-up-table-assisted sliding discrete Fourier transform for low-frequency power and acoustic signals,” IET Circuits, Devices and Systems, vol. 5, Issue 6, pp. 494 - 504, Dec. 2011.
  18. P. Sumathi, P. A. Janakiraman, “FPGA Implementation of an Amplitude Modulated Continuous Wave Ultrasonic Ranger using Restructured Phase Locking Scheme,” Journal of VLSI Design, Article ID 213043, 2010.
  19. P. Sumathi, P. A. Janakiraman, “SDFT based Ultrasonic Range Finder using AM Continuous Wave and Online Parameter Estimation,” IEEE Transactions on Instrumentation and Measurement, vol. 59, no. 8, pp.1994 - 2004, Aug. 2010.
  20. P. Sumathi, P. A. Janakiraman, “Integrated Phase-Locking Scheme for SDFT-Based Harmonic Analysis of Periodic Signals,” IEEE Transactions on Circuits and Systems-II: Express Briefs, vol. 55, no.1, pp. 51 - 55, Jan. 2008.
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