Selected Publications

2014

  1. R. C. Nongpiur and D. J. Shpak, "Synthesis of linear and planar arrays with minimum element selection”, IEEE Transactions on Signal Processing, vol. 62, no. 20, Aug. 2014. (pdf)
  2. R. C. Nongpiur, "Design of minimax robust broadband beamformers with optimized microphone positions", Digital Signal Processing, vol. 32, pp. 100-108, Sep. 2014. (pdf)
  3. R. C. Nongpiur, "Design of minimax broadband beamformers that are robust to microphone gain, phase, and position errors”, IEEE Transactions on Audio, Speech, and Language Processing, vol. 22, no. 6, Jun. 2014. (pdf)
  4. R. C. Nongpiur, D. J. Shpak, and A. Antoniou, "Design of IIR digital differentiators using constrained optimization,” IEEE Transactions on Signal Processing, vol. 62, no. 7, Apr. 2014. (pdf)
  5. R. C. Nongpiur, D. J. Shpak, and P. Agathoklis, "Design of optimal wavelets for detecting impulse noise in speech,” 2014 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2014), Florence, Italy. (pdf)

2013
  1. R. C. Nongpiur and D. J. Shpak, " L-infinity norm design of linear-phase robust broadband beamformers using constrained optimization,” IEEE Transactions on Signal Processing, vol. 61, no. 23, Dec. 2013. (pdf)
  2. R. C. Nongpiur and D. J. Shpak, " Impulse noise suppression in speech using the stationary wavelet transform",  Journal of the Acoustical Society of America, vol. 133, no. 2, Feb. 2013. (pdf)
  3. R. C. Nongpiur, D. J. Shpak, and A. Antoniou, " Improved design method for nearly linear-phase IIR filters using constrained optimization,” IEEE Transactions on Signal Processing, vol. 61, no. 4, Feb. 2013. (pdf)

2012

  1. R. C. Nongpiur and D. J. Shpak, "Maximizing the signal-to-alias ratio in non-uniform filter banks for acoustic echo cancellation",  IEEE Transactions on Circuits and Systems – I: Regular Paper,  vol. 59, no. 10, Oct. 2012. (pdf)
  2. R. C. Nongpiur and P. Hetherington, Sub-band periodic signal enhancement algorithm, US patent no US 8306821, granted in Nov. 2012.
  3. R. C. Nongpiur, Dynamic controller for improving speech intelligibility, US patent no. US8296136, granted in Oct. 2012.
  4. R. C. Nongpiur, D. Giesbrecht, P. Hetherington, Periodic signal enhancement system, US patent no. US 8170879 granted in May 2012.

2011
  1. R. C. Nongpiur and D. J. Shpak, "Maximizing the signal/alias ratio in non-uniform filter banks for acoustic echo cancellation”, 2011 IEEE New Circuits and Systems Conference  (NEWCAS 2011), Bordeaux, France, June 2011. (pdf)
  2. R. C. Nongpiur and D. J. Shpak, "Bi-Criterion Optimization of Non-Uniform Filter Banks for Acoustic Echo Cancellation”, 2011 IEEE International Symposium on Circuit and Systems (ISCAS 2011), Rio de Janeiro, Brazil, May 2011. (pdf)
  3. X. Li, R. C. Nongpiur, and P. Hetherington, Dynamic Noise Reduction, US patent no. US8015002 granted in Sep 2011.
  4. R. C. Nongpiur, P. Hetherington, Adaptive filter pitch extraction, US patent no. US7949520 granted in May 2011.
  5. R. C. Nongpiur and P. Hetherington, High-frequency bandwidth extension in the time domain, US patent no. 7912729, granted in Mar. 2011.
  6. R. C. Nongpiur, S. Paranjpe, and P. Hetherington, Transient noise removal system using wavelets, US patent no. 7869994, granted in Jan 2011.

2010

  1. S. B. Nagaraj, R. C. Nongpiur, A. Antoniou, “Design of nearly linear-phase recursive digital filters by using unconstrained least-pth minimax optimization”, 2010 IEEE International Symposium on Communications, Control, and Signal Processing (ISCCSP 2010), Limassol, March 2010.
  2. R. C. Nongpiur and P. Hetherington, Advanced periodic signal enhancement, US patent no. US7716046, granted in May 2010.

2009

  1. R. C. Nongpiur and P. Hetherington, Periodic signal enhancement system, US patent no. US7610196, granted in Oct 2009.
  2. R. C. Nongpiur, X. Li, P. A. Hetherington, Bandwidth extension of narrowband speech, US patent no. US7546237, granted in Jun. 2009.

2008

  1. R. C. Nongpiur, D. J. Shpak, and A. Antoniou, "An analysis of a near-end crosstalk cancellation system that uses adaptive filters",  IEEE Transactions on Circuits and Systems – I: Regular Paper,  vol. 55, no. 10, Nov 2008. (pdf)
  2. R. C. Nongpiur, “Near-end crosstalk mitigation using wavelets”, 2008 European Signal Processing Conference (EUSIPCO 2008), Lausanne, Switzerland, August 2008. (pdf)
  3. R. C. Nongpiur, “Impulse noise removal in speech using wavelets”, 2008 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2008), Las Vegas, USA, pp. 1593-1597, Apr. 2008. (pdf)

2006

  1. R. C. Nongpiur, D. J. Shpak, and A. Antoniou, "Average power sum of the near-end crosstalk couplings after near-end crosstalk cancellation”, 2006 IEEE International Symposium on Circuit and Systems (ISCAS 2006), Kos, Greece, pp. 3470-3473, May 2006.

2005

  1. R. C. Nongpiur, D. J. Shpak, and A. Antoniou, "NEXT cancellation system with improved convergence rate and tracking performance", IEE Proceedings – Communications, vol. 152, no. 3, Jun 2005. (pdf)

2004

  1. R. C. Nongpiur, D. J. Shpak, and A. Antoniou, "Tracking performance for the FDLMS near-end crosstalk canceller for xDSL Systems," 2004 IEEE International Symposium on Circuit and Systems (ISCAS 2004), Vancouver, Canada, Vol. 3, pp. 283-287, May 2004.

2003

  1. R. C. Nongpiur, D. J. Shpak, and A. Antoniou, "NEXT cancellers using FDLMS filters with improved convergence Rate," 37th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA., Nov 2003.
  2. R. C. Nongpiur, D. J. Shpak, and A. Antoniou, "Application of NLMS, PNLMS, and i-PNLMS algorithms for near-end crosstalk cancellation in xDSL Systems," 2003 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, Victoria, BC, Aug 2003.
  3. R. C. Nongpiur, D. J. Shpak, and A. Antoniou, "Near-end crosstalk cancellation using variable-length cancellers," 2003 IEEE International Symposium on Circuit and Systems (ISCAS 2003), Bangkok, Thailand, Vol. 4, pp. 345-348, May 2003.

2002

  1. R. C. Nongpiur, D. J. Shpak and A. Antoniou, "NEXT cancellation in xDSL systems,", 36th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA., Vol. 1, pp. 393-397, Nov 2002.
Complete publication list (PDF)