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1. In About page, replace with following:

Dr. Arun Kumar received the B.Tech, M.Tech and PhD degrees in Electrical Engineering from IIT Kanpur in 1988, 1990 and 1995 respectively. He was a Visiting Researcher at the ECE Department, University of California, Santa Barbara, from 1994 to 1996. Since December 1996, he has been with the Centre for Applied Research in Electronics (CARE), IIT Delhi, where he is currently a Professor. He was Head of CARE from April 2012 to August 2016. He was also Head of the Instrument Design and Development Centre of IIT Delhi from May 2015 to August 2016.

Dr. Arun Kumar’s research interests span the areas of digital signal processing, underwater and air acoustics, speech processing for human and machine communication, and multi-sensor data fusion for mobile and wearable devices. He is an Inventor on 4 US Patents (2 granted and 2 applications published). He has published over 100 papers in refereed journals and conferences, and has supervised 50 funded R&D projects from government organizations and Indian and foreign industries. These have led to about 20 Technology/Knowhow transfers to industry and government organizations. Many technologies developed by him are deployed in the field and are in practical use. He is an Editor of the IETE Journal of Research since 2009, and a Member of the Executive Committee of the India Chapter of IEEE Oceanic Engineering Society.

Courses Offered

1. Architectures and Algorithms for DSP Systems.

2. Human and Machine Speech Communication.

3. Sensor Array Signal Processing.

4. Statistical Signal Processing.

2. Replace Research Interest page by the following (also update on faculty page):

Research Interest

1. Digital signal processing.
2. Underwater and air acoustics.

3. Human and machine speech communication technologies.

4. Multi-sensor data fusion for mobile and wearable devices, and IoT.

Current Activities

1.  Underwater and air acoustic vector sensors.

2.  Acoustics based detection and localization in air and underwater media.

3.  Sonar signal processing algorithms.

4.  Speech analytics.

5.  Context awareness using multi-sensor data fusion.

6.  Underwater navigation algorithms.

3. Replace Funded Projects page by the following:

Sponsored Research Projects

  1. PI: R. Bahl, Co-PI: A. Kumar, M. Agarwal, “Multi-target location estimation using LOFIX and least squares methods with distributed DIFAR sonobuoys”, 2015-16.
  2. PI: A. Kumar, Co-PI: R. Bahl, M. Agarwal, “Implementation and performance comparison of estimation methods for DIFAR sensors,” 2014-2015.
  3. PI: M. Agarwal, Co-PI: A. Kumar, R. Bahl, “Study and implementation of TRM based OFDM underwater acoustic communication,” 2014-2015.
  4. PI: M. Agarwal, Co-PI: A. Kumar, R. Bahl, "Development of underwater acoustic communication system based on time reversal mirror – Phase 2,” 2014-2016.
  5. PI: R. Bahl, Co-PI: A. Kumar, M. Agarwal, “Sonic characteristics of marine species,” 2012-2017.
  6. PI: A. Kumar, Co-PI: M. Agarwal, “Studies on snow acoustic reflectometry and development of electronics for stratigraphy and snow water equivalent determination,” 2012-2015.
  7. PI: A. Kumar, Co-PI: R. Bahl, M. Agarwal, “State-of-the-art facilities in underwater electronics at CARE, IIT Delhi,” 2011-2016.
  8. PI: M. Agarwal, Co-PI: A. Kumar, R. Bahl, "Time-reversal mirrors and MIMO-OFDM underwater communications," 2009-2013.
  9. PI: M. Sharma, Co-PI: A. Kumar, K. Paul, "Framework for intelligent sensor data fusion," Phase I-IV, 2008-2012.
  10. PI: M. Agarwal, Co-PI: A. Kumar, R. Bahl, "Design of block-layered space-time codes," 2008-2011.
  11. PI: A. Kumar, Co-PI: R. Bahl, M. Agarwal, "Realization of prototype low power acoustic signal processor module for remote manned/unmanned platforms," 2007-2012.
  12. PI: A. Kumar, Co-PI: R. Bahl, M. Agarwal, "Design and implementation of target detection module for underwater passive surveillance," 2007-2010.
  13. PI: S. Banerjee, Co-PI: A. Kumar, S. Chaudhury, P. Kalra, S. D.Joshi, "TCS Media Laboratory: Computer Vision based active surveillance." 2006-2007.
  14. PI: A. Kumar, Co-PI: R. Bahl, M. Agarwal, "Upgradation of laboratory facilities in the area of Underwater Electronics at CARE," 2005-2010.
  15. PI: R. Bahl, Co-PI: A. Kumar, M. Agarwal, "Design of platform classifier using multi-sensor data fusion," 2005-2006.
  16. PI: S. Chaudhury, Co-PI:S. D. Joshi, A. Kumar, "E-video: Video information processing with enhanced functionality," 2004-2006.
  17. PI: A. Kumar, Co-PI: R. Bahl, M. Agarwal, "Design of target classification method for passive surveillance sonar," 2003-2006.
  18. PI: S. Tuli, Co-PI: A. Kumar, G. Bose, "Novel studies on propagation and signal processing of thermal waves for defect localization with applications to non-destructive characterization," 2002-2005.
  19. PI: R. Bahl, Co-PI: A. Kumar, "Study and simulation of passive surveillance techniques for autonomous platforms," 2000-2002. (A. Kumar was PI from July 2002 to end of project).
  20. PI: R. Bahl, Co-PI: A. Kumar, "Development of techniques for low probability of intercept secure underwater LAN links," 2000-2002. (A. Kumar was PI from July 2002 to end of project).
  21. PI: R. Bahl, Co-PI: A. Kumar, "Design and development of a prototype compact low-power acoustic signal processor module for remote manned/unmanned platforms," 2000-2003. (A. Kumar was PI from July 2002 to end of project). (A. Kumar was PI from July 2002 to end of project).
  22. PI: A. Kumar, Co-PI: R. Bahl, "Investigations of novel designs for efficient wideband speech and audio coding," 1999-2001.
  23. PI: A. Kumar, Co-PI: R. Bahl, "Design of efficient wideband speech encoding and decoding scheme", 1998-1999.

Consultancy and Technology Development Projects

  1. CI: A. Kumar, Co-CI: R. Bahl, I. N. Kar, “Algorithmic framework for MEMS sensor fusion applications – Phase 2”, 2015-16.
  2. CI: A. Kumar, Co-PI: R. Bahl, I. N. Kar, “Development of multi-sensor data fusion and distribution algorithm with implementation in HLL on COTS hardware”, 2014-17.
  3. CI: A. Kumar, Co-PI: R. Bahl, I. N. Kar, “Algorithmic framework for MEMS sensor fusion applications”, 2014-15.
  4. CI: R. Bahl, Co-CI: A. Kumar, M. Agarwal, “Software for underwater domain awareness,” Phase 2, 2012.
  5. CI: A. Kumar, Co-CI: I. N. Kar, R. Bahl, “Development, implementation, and performance comparison of estimation methods for bearings-only tracking of non-maneuvering and maneuvering targets,” 2012-2014.
  6. CI: A. Kumar, Co-CI: R. Bahl, M. Agarwal, “Simulation studies and evaluation of infrasonic based avalanche localization system,” 2010-2012.
  7. CI: R. Bahl, Co-CI: A. Kumar, M. Agarwal, “Software for underwater domain awareness,” Phase 1, 2011.
  8. CI: A. Kumar, Co-CI: R. Bahl, M. Agarwal, “Development of real-time platform radiated noise simulator software using time-varying underwater channel,” 2011.
  9. CI: A. Kumar, Co-CI: R. Bahl, M. Agarwal, “Development of real-time platform radiated noise simulator for classifier testing using unbounded underwater channel,” 2010.
  10. CI: A. Kumar, Co-CI: R. Bahl, M. Agarwal, “Development of platform radiated noise library for classifier testing,” 2010.
  11. CI: A. Kumar, Co-CI: R. Bahl, M. Agarwal, “GMSK modulation and atmospheric noise suppression for VLF communication,” 2010-2011.
  12. CI: R. Bahl, Co-CI: A. Kumar, M. Agarwal, “LDPC codes for VLF communication,” 2010-2011.
  13. CI: R. Bahl, Co-CI: A. Kumar, M. Agarwal, "Target classifier using active sonar", 2009-2011.
  14. CI: A. Kumar, "Technical consultancy on speech based recognition systems", 2009.
  15. CI: A. Kumar, Co-CI: R. Bahl, “Flexible pattern recognition for ultrasonic signals – step 2,” Japan, 2008-2009.
  16. CI: A. Kumar, Co-CI: R. Bahl, "Flexible pattern recognition for ultrasonic signals – step 1", Japan, 2007-2008.
  17. CI: A. Kumar, Co-CI: R.Bahl, M. Agarwal, "Higher order spectrum analysis tools for underwater acoustic signals," 2007-2008.
  18. CI: A. Kumar, Co-CI: R. Bahl, M. Agarwal, "Identification of coupled machinery frequencies from passive sonar data," 2006-2008
  19. CI: R. Bahl, Co-CI: A. Kumar, M. Agarwal, "Noise filtering and spectral estimation techniques for passive sonar data", 2006-2008.
  20. CI: A. Kumar, Co-CI: R. Bahl, "Formulating realistic criteria for detection of targets by sonars", 2005-2006.
  21. CI: A. Kumar, Co-CI: S. Prakriya, "Modular course in Digital Signal Processing," 2003.
  22. CI: R. Bahl, Co-CI: A. Kumar, "Training simulation software for naval applications", 2002.
  23. CI: R. Bahl, Co-CI: A. Kumar, "DSP Consultation," 2000.
  24. CI: A. Kumar, Co-CI: R. Bahl, "Robust algorithm design for natural quality low bit rate speech coding", 1998-1999.
  25. CI: A. Kumar, Co-CI: R. Bahl, "Algorithm design of speech encoder and decoder at 3.0-4.0 kbps", 1998.
  26. CI: A. Kumar, Co-CI: R. Bahl, "Design of speech coder", 1998.
  27. CI: A. Kumar, Co-CI: R. Bahl, "Algorithm design and DSP implementation of variable rate speech encoder and decoder at 3.0-4.0 kbps", 1997.

4. Replace PhD Scholar page by the following:

Completed

1.  Kapil Dev Tyagi, “Investigation of signal processing techniques for acoustic reflectometry,” supervisors: Arun Kumar, R. Bahl, 2016.

2.  Hemlata Chowdhary, “Inter-sensor time delay estimation for passive acoustic localization,” supervisors: Arun Kumar, R. Bahl, 2014.

3.  Rinki Gupta, “Estimation of instantaneous frequency and its applications,” supervisors: Arun Kumar, R. Bahl, 2013.

4.  Rajesh Kumar Dubey, “Non-intrusive objective speech quality assessment using features at single and multiple time scales,” supervisor: Arun Kumar, 2013.

5.  S. S. Lokesh, “Pre-coding techniques for communication systems,” supervisors: Arun Kumar, M. Agarwal, 2010.

6.  Arnab Das, "Classification of marine vessels using passive sonar," supervisors: Arun Kumar, R. Bahl, 2007.

7.  Abhijit Karmarkar, "A multi-resolution auditory model and its application to objective evaluation of subjective speech quality," supervisors: Arun Kumar, R. K. Patney, 2007.

8.  Ashish Verma, "Voice fonts framework for individuality representation and transformation", supervisor: Arun Kumar, 2005.

9.  Tanmay Roy, "Bispectrum phase based extraction of target parameters using passive sonar," supervisors: Arun Kumar, R. Bahl, 2003.

Thesis Submitted

1.  Ashish Agarwal, “Multiple source localization with single acoustic vector sensor,” supervisors: Arun Kumar, M. Agarwal, 2015.

In Progress

1.  Abhimanyu Popli, “Multilingual keyword spotting in speech using articulatory motivated posteriograms” supervisor: Arun Kumar.

2.  Rajani Akula, “Infrasonics based detection and localization of snow avalanches,” supervisors: Arun Kumar and M. Agarwal.

3.  Mohd. Wajid, “Design of acoustic vector sensors for air applications”, supervisors: Arun Kumar, R. Bahl.

4.  Arun Goel, “Acoustic imaging”, supervisors: Arun Kumar, R. Bahl.

5.  Bipin Patel, “Design and implementation of acoustic vector sensors for air applications,” supervisors: Arun Kumar, R. Bahl.

6.  Manish Jain, “Active noise cancellation,” supervisors: Arun Kumar, R. Bahl.

7.  Sunil Kumar Sinha, “Acoustics based localization of UAVs,” supervisors: Arun Kumar, R. Bahl.

8.  Baiju M. Nair, “Passive sonar based direction of arrival estimation,” supervisors: Arun Kumar, R. Bahl.

9.  Arjun Kalgan, “Underwater target localization and motion analysis using passive sonar,” supervisors: Arun Kumar, R. Bahl.

10.  Nitesh Sahu, “Multi-sensor data fusion for navigation applications,” supervisors: Arun Kumar, R. Bahl.

5. In Publications replace with following list:

Patents

1.  Mahesh Chowdhary, Arun Kumar, Manish Sharma, Ashutosh Pande, Mahaveer Jain, Gagan Narula, Chimnay Agarwal, and Kolin Paul, “Methods and applications for altitude measurement and fusion of user context detection with elevation motion for personal navigation systems,” US Patent No. US 8,566,032 B2, Date of Patent Publication: 22 Oct. 2013.

2.  Mahesh Chowdhary, Arun Kumar, Manish Sharma, Kolin Paul, Mahaveer Jain, Gagan Narula, “Methods and applications for motion mode detection for personal navigation systems,” US Patent No. US 9,163,946 B2, Date of Patent Publication: 20 Oct. 2015.

3.  Mahesh Chowdhary, Manish Sharma, Arun Kumar, Anuraag Gupta, Prateek Agrawal, “Hierarchical context detection method to determine location of a mobile device on a person’s body,” US Patent Application No. US 2012/0303271 A1, Date of Patent Application Publication: 29th Nov. 2012.

4.  Mahesh Chowdhary, Manish Sharma, Arun Kumar, Sankalp Dayal, Mahaveer Jain, “Method and apparatus for determining walking direction for a pedestrian dead reckoning process,” US Patent Application No. US 2013/682,684, Date of Patent Application Publication: 22nd May 2014.

Journals and Book Chapters

1.  Mohd. Wajid, Arun Kumar and Rajendar Bahl, “Design and study of air acoustic vector sensor configurations for two dimensional geometry,” The Journal of Acoustical Society of America, vol. 139 (5), pp. 2815-2832, 2016.

2.  Rajani Akula, Arun Kumar and Monika Agrawal, “Localization of snow avalanches from infrasound signatures using an acoustic vector sensor,” IUP Journal of Electrical and Electronics Engineering, vol. 9, no. 2, pp. 42-52, 2016.

3.  Mohd. Wajid, Arun Kumar and Rajendar Bahl, “Bearing estimation in a noisy and reverberant environment using an air acoustic vector sensor,” IUP Journal of Electrical and Electronics Engineering, vol. 9, no. 2, pp. 53-63, 2016.

4.  Rajesh Kumar Dubey and Arun Kumar, “Non-Intrusive Speech Quality Assessment using Multi-Resolution Auditory Model Features for Degraded Narrowband Speech,” IET Signal Processing, vol. 9, issue 9, 2015.

5.  Arjun Kalgan, Rajendar Bahl, Arun Kumar, “Design and implementation of prototype Underwater Acoustic Vector Sensor for passive estimation of Direction of Arrival of radiating acoustic signal,” Indian Journal of Geo-Marine Sciences, pp. 519-525, 2015.

6.  Kapil Dev Tyagi, Arun Kumar, Rajendar Bahl, Karamjeet Singh, “Field experiments and simulations to determine acoustic attenuation constant in snow,” under review for journal publication.

7.  Arun Kumar and Rajendar Bahl, “An architecture for high data rate very low frequency communication,” Defence Science Journal, vol. 63, no. 1, pp. 25-33, Jan 2013.

8.  H. Choudhary, R. Bahl, A. Kumar, “Passive acoustic localization using blind Gauss Markov estimate with spectral estimation at each sensor,” IET Radar, Sonar, and Navigation, vol. 7, issue 7, pp. 800-807, 2013.

9.  Rajesh Dubey and Arun Kumar, “Non-intrusive speech quality assessment using several combinations of auditory features,” Intl. Journal of Speech Technology, Springer, vol. 16, issue 1, pp. 89-101, March 2013.

10.  Arnab Das, Arun Kumar, R. Bahl, “Marine vessel classification based on passive sonar data: The cepstrum based approach,” IET Radar, Sonar and Navigation, vol. 7, issue 1, pp. 87-93, 2013.

11.  Rinki Gupta, Arun Kumar and R. Bahl, “Estimation of instantaneous frequencies using empirical mode decomposition,” Signal, Image, and Video Processing, vol. 6, no. 1, pp. 1-14, March 2012.

12.  Abhijit Karmakar, Arun Kumar, and R. K. Patney, “Synthesis of an optimal wavelet based on auditory perception criterion,” EURASIP Journal on Advances in Signal Processing, vol. 2011, Article ID 170927, 2011.

13.  Arnab Das, Arun Kumar and R. Bahl, “Radiated signal characteristics of marine vessels in the cepstral domain for shallow underwater channel,” Journal of Acoustical Society of America Express Letters, vol. 128, No. 4, EL151 – 156, Oct. 2010.

14.  Kartik Audhkhasi and Arun Kumar, "Two scale auditory feature based non-intrusive speech quality evaluation," IETE Journal of Research, vol. 56, Issue 2, pp. 111-118, 2010.