Communications and Signal Processing

Research Overview

Research is underway on the design and development of software that generates implementations and solves estimation problems using Kalman filters and its variants. From a high-level mathematical description of a state estimation problem, the software aims to generate code that computes statistically optimal estimate using the appropriate estimation filters. Also being developed are motion analysis algorithms to find relevant motion parameters based on available information, in the presence of relatively high error rates in low SNR conditions.

Research is being carried out for the development of new circuit topologies for wireless communication and radar systems. Specific research topics include: the design and development of miniaturized active integrated antennas, front-ends of wireless communication and radar systems including smart antenna systems; multi-band transceiver design, digital base-band signal processing for wireless communication, multi-band fractal antenna for satellite applications, analysis of radiation from multi-device high-gain amplifier, and interaction of active MMIC with package.


  • Prof. Abhishek Jindal: Joint communication and radar for 6G; Multi-target sensing; Design and analysis of Intelligent reflecting surfaces; Massive MIMO and mm-Wave systems
  • Prof. Anjan Ghosh: Photonics, Optical Wireless Communication, Medical Imaging
  • Prof. Deepak Ghodgaonkar: Microwave Nondestructive Testing of Composite Materials and Microwave Imaging of Human Body
  • Prof. Hemant A. Patil: Speech Signal Processing, Anti-Spoofing for Voice Biometrics, Audio Deepfake Detection, Voice Liveliness Detection , Infant Cry Analysis and Classification, Dysarthric Severity-Level Classification
  • Prof. Manish Kumar: Next Generation Communication Networks, 5G/B5G, Optimization in IoT and Wireless Sensor Networks
  • Prof. Manjunath V. Joshi:  Computer Vision, Secured Machine Learning, Responsible AI, Quantum Machine Learning
  • Prof. Pankaj Kumar: Bio-Inspired Metasurface/Metamaterial Devices, Terahertz Devices, Semiconductor Device Modeling and Simulation
  • Prof. Rajib Lochan Das: Adaptive Signal Processing, Compressive Sensing & Machine Learning
  • Prof. Yash Vasavada: Spatial Modulation, Hybrid Beamforming, Nonlinearity Compensation Techniques, Interference Cancellation, NOMA, OTFS

Research Groups and Labs

More Information Through Figure

Sponsored Research Labs

Sponsored Research

Faculty Handbook

PI/Co-PI Project Title Funding Agency Duration Amount
Prof. Bhaskar Chaudhury and Prof. Yash Vasavada Satellite Network Simulator with ULPC and ACM Features SAC ISRO February 2020 to December 2023 Rs. 14.18 Lakhs
Dr. Deepak Ghodgaonkar Development of Microwave Absorbers (Carbonyl Iron Filled Silicon Rubber Sheets) in 1 to 8 GHz range SAC ISRO August 2017 to 31 July 2021 Rs. 22.17 lakhs
Ultra Wide Band Dielectric Resonator Antennas SAC ISRO January 2015 to October 2018 Rs. 15.76 lakhs
Analysis of Radiation from Multidevice High Gain Amplifier and Interaction of Active MMIC with Package / Housing - Theory, Analysis and Measurement SAC ISRO May 2009 to December 2011 Rs. 11.24 lakhs
Prof. Hemant A. Patil Speech technologies in Indian languages' under the Project titled 'National Language Translation Mission (NLTM) : BHASHINI' MeitY 03 years Rs. 85.26 lakhs
DST FIST Project DST 05 years Rs. 57 lakhs
Development of TEXT to SPEECH SYNTHESIS (TTS) SYSTEM in Indian Languages: High quality text to speech synthesis and small footprint TTS integrated with disability aids MeitY 03 years Rs. 76.90 lakhs
Speech-Based Access of Agricultural Commodity Prices and Weather Information in 11 Indian Languages/Dialects MeitY 02 years Rs. 44.70 lakhs
Development of Prosodically Guided Phonetic Engine for Searching Speech Databases in Indian Languages MetiY 02 years Rs. 50.60 lakhs
Development of Infant Cry Analyzer using Source and System Features (Fast Track Award for Young Scientist) DST 03 years Rs. 5.96 lakhs
India Digital Heritage (IDH) – A DST Initiative DST 03 years Rs. 37.60 lakhs
Prof. Hemant Patil (PI) and Prof. Manjunath Joshi Text to Speech for Gujarathi language DIT, India 2012–2014 Rs. 76.9 lakhs
Prof. Manjunath Joshi (PI), Prof. Mukesh Zaveri and Prof. Hemant Patil Immersive Navigation for Walk Through Application Indian Digital Heritage (IDH) project sponsored by DST, India 2011–2016 Rs 37.6 lakhs
Prof. Manjunath Joshi Consulatncy work on "OCR Enhancement" sponsored by FactSet UK Limited (“FactSet”) Broadgate Quarter, One Snowden Street, London, EC2A 2DQ 2018–2019 Rs. 8.76 lakhs
Prof. Priyanka Singh (PI) and Prof. Manjunath Joshi A Forensic Tool for Land Revenue Documents Forgery Detection GUJCOST (Gujarat Govt.), India 2021–2022 Rs 6.00 lakhs
Prof. Rajib Lochan Das and Prof. Yash Vasavada Design and Simulation of Physical Layer and MAC Layer Functionalities of Future Mobile Satellite Systems SAC ISRO July 2019 to July 2022 Rs. 27.42 Lakhs
Prof. Yash Vasavada and Prof. Rajib Lochan Das Design and Simulation of Beamforming Algorithms and Baseband Technologies for SATCOM On the Move (SOTM) Networks SAC ISRO February 2019 to July 2022 Rs. 29.2 Lakhs
Prof. Yash Vasavada System Design for Ground Based Beamformer SAC ISRO December 2019 to December 2021 Rs. 38.06 Lakhs
Prof. Yash Vasavada Adaptive Beam Forming for Mitigation of Interference and Jamming at the Ground Terminal of Global Navigational Satellite Systems (GNSS) SAC ISRO August 2020 to July 2022 Rs. 15.98 Lakhs

Current Publications

Prof. Abhishek Jindal

  • T. Bhavsar and A. Jindal, "On Reducing the Outage Probability in VFD-NOMA with Limited CSI at Source", IEEE Communication Letters, Vol. 27, No. 2, February 2023;
  • M. Kumar, A. Jindal and K. P. Rajput, "Interference Coordination Scheme for the Downlink of UAV Assisted Cellular Network", 2022 IEEE ANTS;
  • M. Kumar and A. Jindal, "PSO based UAV Localization for Interference Coordination in Cellular Network", 2023 IEEE ANTS

Prof. Anjan Ghosh

  • A. Ghosh, "Characteristics of optical chaos generated by an acousto-optic system in the Raman-Nath mode,” Proc. SPIE 11136, Optics and Photonics for Information Processing XIII, p. 11136X, Aug. 2019. doi: 10.1117/12.2529484.
  • A. Datta, A. Mukherjee, A. Ghosh and C. Nandi, "Simulating the effect of electro optic or acousto optic modulator along with noise in SPICE," Proc. IEEE 7th International Conference on Electrical Energy Systems (ICEES 2021), pp. 576-581, 2021.
  • A. Ghosh and T. Deb, "An investigation of partitioning of images with respect to compressibility and spatial complexity," Proc. SPIE 12225, Optics and Photonics for Information Processing XVI, p.122250B, Oct. 2022. Doi: 10.1117/12.2633574.

Prof. Deepak Ghodgaonkar

  • Rahul Vashisth, Deepak Ghodgaonkar and Sanjeev Gupta, "Broadband Microwave Absorber using Pixelated FSS Embedded in CISR Sheets in Frequency Range of 3.95 to 8.2 GHz " Journal of Electromagnetic Waves and Applications, Vol. 35, No. 17, 2021, pp. 2349-2367.
  • Pankaj Chaudhary, D. K. Ghodgaonkar, Sanjeev Gupta, Rajeev Jyoti and Milind Mahajan, "Compact circularly polarized triband staired rectangular dielectric resonator antenna using single and dual sections WPD with phase shifter for navigation satellite applications," Microwave and Optical Technology Letters, Vol. 62, No. 5, May 2020, pp. 2047-2058.
  • Ch. V. N. Rao, D. K. Ghodgaonkar and Nitesh Sharma, "GaAs MMIC Low Noise Amplifier With Integrated High-Power Absorptive Receive Protection Switch" IEEE Microwave and Wireless Components Letters, Vol. 28, No. 12, December 2018, pp. 1128-1130

Prof. Hemant A. Patil

  • Hemant A. Patil, Aastha Kachhi, and Ankur T. Patil, “CQT-Based Cepstral Features for Classification of Normal vs. Pathological Infant Cry,” accepted in IEEE Trans. Speech Audio, and Language Processing, 2023
  • Priyanka Gupta and Hemant A. Patil, “Morse Wavelet Transform-Based Features for Voice Liveness Detection,” in Computer Speech and Language, Elsevier, March 2024
  • Hardik B. Sailor and Hemant A. Patil, “Auditory feature representation using convolutional restricted Boltzmann machine and Teager energy operator for speech recognition,” Journal of Acoust. Soc. of America (JASA) Express Letters, vol. 141, no. 6, pp. 1–7, June 2017
  • Tanvina B. Patel and Hemant A. Patil, “Cochlear filter and instantaneous frequency based features for spoofed speech detection”, in IEEE Journal of Selected Topics in Signal Processing (JSTSP), Special Issue on Spoofing and Countermeasures for Automatic Speaker Verification, vol. 11, no. 4, pp. 618-631, June 2017

Prof. Manish Kumar

  • "Design and Testbed Implementation of Blind Parameter Estimated OFDM Receiver" in IEEE Transactions on Instrumentation and Measurement, 2022
  • Interference Coordination Scheme for the Downlink of UAV Assisted Cellular Network" in 16th IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS), IIT Gandhinagar
  • "A Novel Sampling Frequency Offset Estimation Algorithm for OFDM Systems Based on Cyclostationary Properties" in IEEE Accesss Journal, 2019

Prof. Manjunath V. Joshi

  • S. Shivam, J. Rohan, B. Shruti, and M. V. Joshi, “Robust Adversarial Defense: Use of Auto-Inpainting,” in 20th International Conference on Computer Analysis of Images and Patterns (CAIP), Limassol, Cyprus: Springer, 2023.
  • K. Captain and M. V. Joshi, Spectrum Sensing for Cognitive Radio: Fundamentals and Applications. CRC Press (Book), November 2021.
  • J. R. Patel, M. V. Joshi, and J. S. Bhatt, “Abundance Estimation Using Discontinuity Preserving and Sparsity induced Priors,” IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 12, no. 6, pp. 2148–2158, 2019.

Prof. Pankaj Kumar

  • Kumar Pankaj, Lakhtakia Akhlesh, and Jain Pradip Kumar, “Graphene pixel-based polarization-insensitive metasurface for almost perfect and wideband terahertz absorption”, Journal of the Optical Society of America B, 36, F84-F88, 2019. (impact Factor: 2.18, Q-2, Optical Society of America) 2)
  • Kumar Pankaj, Lakhtakia Akhlesh, and Jain Pradip Kumar, “Tricontrollable pixelated metasurface for absorbing terahertz radiation”, Applied Optics, 58, 9614-9623, 2019. (Impact Factor :1.961, Q-1, Optical Society of America) 3)
  • Kumar Raghwendra, Kumar Pankaj, “Fabry-Pérot cavity resonance based metamaterial absorber for refractive index sensor at infrared frequencies”, Optics Communications, 2022. (Impact Factor: 2.31, Q-2, Elsevier)

Prof. Rajib Lochan Das

  • R. L. Das and V. Trivedi, "An Adaptive Upper Threshold Based Gain Function for the ZA-PNLMS Algorithm," in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 67, no. 10, pp. 2274-2278, Oct. 2020, doi: 10.1109/TCSII.2019.2954721.
  • R. L. Das, "ℓ1/ℓ0 Regularized Conjugate Gradient Based Sparse Adaptive Algorithms," 2020 International Conference on Signal Processing and Communications (SPCOM), Bangalore, India, 2020, pp. 1-5, doi: 10.1109/SPCOM50965.2020.9179548.
  • J. Fernandez and R. L. Das, "A Robust Zero-attracting Proportionate Logarithmic Hyperbolic Cosine Adaptive Filter against Impulsive Noise for Sparse Systems," 2021 IEEE 18th India Council International Conference (INDICON), Guwahati, India, 2021, pp. 1-6, doi: 10.1109/INDICON52576.2021.9691600.

Prof. Yash Vasavada

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Meet Prof. Yash Vasavada: A Passionate Researcher in Wireless Communications and Signal Processing

Meet Professor Deepak Ghodgaonkar has been a distinguished faculty member

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