ABEYSEKERA Saman
Associate Professor of School of Electrical and Electronic Engineering
Division of Information Engineering

Phone: 6790 4515, Fax: 6793 3318
Office: S1-B1c-87 
Email: esabeysekera@ntu.edu.sg

Biography

Saman S. Abeysekera received the B.Sc. Engineering (first class honors) degree from the University of Peradeniya, Sri Lanka, in 1978 and the Ph.D. degree in electrical engineering from the University of Queensland, Brisbane, Australia, in 1989. From 1989 to 1997, he worked at the Centre for Water Research, University of Western Australia and Australian Telecommunication Research Institute, Curtin University of Technology, Western Australia. He is presently an Associate Professor in the School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore. He is also the Program Director of the Statistical and Adaptive Signal Processing Group at the Centre for Signal Processing


Research Interest

Underwater Acoustic Communications & Signal Processing
Efficient Frequency Estimation techniques
Applications of time-frequency signal analysis in bio-medicine and audio processing
Synchronization aspects in Digital Communications
Sigma Delta Modulators and FPGA Implementations


Selected Research Projects

  • Techniques for High Speed Acoustic Data Transfer,
  • Efficient Frequency Estimation and Tracking.
  • Wideband Signal Processing


Selected Publications

  • Abeysekera, S. S., “Efficient frequency estimation using the pulse-pair method at various lags," (to appear) IEEE Transactions on Communications, June 2006.
  • Wang, Z. and Abeysekera, S. S., “Performance of Correlation Based Frequency Estimation Methods in Fading Channels,” (to appear) IEEE Transactions on Vehicular Technology, 2006.
  • Abeysekera, S. S. and Padhi, K. P., “An Investigation of Window Effects on the Frequency Estimation using the Phase Vocoder," IEEE Transactions on Speech & Audio Processing, vol. 14, no. 4, July 2006.
  • Ye, Y. and Abeysekera, S. S., “Efficient Blind Estimation and Equalization of Non-Minimum Phase Communication Channels via the use of a Zero Forcing Equalizer,” Signal Processing, vol. 86, pp. 1019- 1034, Elsevier – Netherlands, May 2006.
  • Abeysekera, S. S. “Analysis of True Jitter Resulting in Pulse Stuffing Schemes”, IEEE Transaction on Communications, vol. 51, no. 4, pp. 597-606, April 2003.