Current position:

Elbit Systems Ltd., Image processing and algorithms group.

I also teach the course "Introduction to Digital Signal Processing" at the Electrical Engineering faculty, The Technion (sylabus, course site).

About me

Contact information:

Research interests:

• Statistical signal processing
• Digital speech processing
• Multichannel signal processing
• Detection and estimation theory

Journal publication:

• A. Abramson and I. Cohen, "State smoothing in Markov-switching time-frequency GARCH models,"  IEEE Signal Processing Letters, vol. 13, no. 6, pp. 377-380, June 2006.

• A. Abramson and I. Cohen, "On the stationarity of Markov switching GARCH processes," Econometric Theory, vol. 23, no. 3, pp.485-500, 2007.

• A. Abramson and I. Cohen,"Recursive Supervised Estimation of a Markov-Switching GARCH Process in the Short-Time Fourier Transform Domain," IEEE Trans. on Signal Processing, vol. 55, no. 7, pp. 3227-3238, July 2007.

• A. Abramson and I. Cohen, "Simultaneous Detection and Estimation Approach for Speech Enhancement," IEEE Trans. Audio, Speech, and Language Processing, vol 15, no. 8, pp. 2348-2359, Nov. 2007. wave files.

• A. Abramson and I. Cohen, "Single-Sensor Blind Source Separation Using Classification and Estimation Approach and GARCH Modeling", submitted to IEEE Trans. Audio, Speech, and Language Processing.

Conference publication:

• A. Abramson and I. Cohen,"Asymptotic stationarity of Markov-switching time-frequency GARCH processes," in Proc. 30th IEEE Internat. Conf. Acoust. Speech Signal Processing., ICASSP-06, Toulouse, France May 2006, pp. III 452-455.

• A. Abramson and I. Cohen, "Markov-switching GARCH model and application to speech enhancement in subbands," in Proc. 10th Internat. Workshop on Acous. Echo and Noise Control, IWAENC-2006, Paris, France September 2006, [best student paper award]. wave files, presentation.

• A. Abramson and I. Cohen,"Enhancement of Speech Signals Under Multiple Hypotheses Using an Indicator for Transient Noise Presence," Proc. 31th IEEE Internat. Conf. Acoust. Speech Signal Processing., ICASSP-07, pp. IV 533-536, Honolulu, Hawaii Apr. 2007 [student paper contest finalist]. wave files, presentation.

• A. Abramson, Emanuël A. P. Habets, Sharon Gannot, and I. Cohen,"Dual-Microphone Speech Dereverberation Using GARCH Modeling," Proc. 32th IEEE Internat. Conf. Acoust. Speech Signal Processing., ICASSP 2008. wave files.