D. NARAYANA DUTT
Associate Professor

Obtained B.E. from Bangalore University in 1967; M.E.(Distinction) and Ph.D. from IISc in 1969 and 1974.

Worked earlier as Senior Research Assistant, Scientific Officer and Senior Scientific Officer in the Department. Visited AlFateh University, Tripoli, Libya as Professor during 1985-87.

RESEARCH INTERESTS AND ACTIVITIES: Digital Processing of EEG (brain) signals with emphasis on spectral estimation, noise minimization and real time processing; EEG data compression and display; Nonlinear dynamics and chaos; Acoustics and Speech signal processing.

RECENT THESES:

Ph.D.
P. K. Sadasivan, Signal Processing Algorithms for the Minimization of Artefacts in Electroencephalogram, 1993.

S. V. Narasimhan, Parameter Spectral Modelling of Electroencephalograph (EEG), 1988.

SELECTED SPONSORED PROJECTS:

  1. Sound Transmission in Coastal Seas (DOE)

OTHER INFORMATION:

Has Collaborative work with NIMHANS, Bangalore on the following:
A Nonlinear Dynamical Study of Transitional Processes of Brain Activity Using Sleep Data
Cerebral Seizure Duration during ElectroConvulsive Threapy

SELECTED PUBLICATIONS:

N. Pradhan and D. Narayana Dutt, `Use of Running Fractal Dimension for the Analysis of Changing Patterns in Electroencephalogram,' Computers in Biology and Medicine, Vol. 23, p-381, 1993.

R. Mathew and D. Narayana Dutt, `Waveshaping Filters for Spectral Estimation of Short Segments of EEG Signals,' Electronics Letters, Vol. 29, p-1534, 1993.

N. Pradhan and D. Narayana Dutt, `A Nonlinear Perspective in Understanding the Neurodynamics of EEG,' Computers in Biology and Medicine, Vol. 23, No. 6, 1993.

N. Pradhan, D. Narayana Dutt and S. Satyam, `A Mimetic-based Frequency Domain Technique for Automatic Generation of EEG Reports,' Computers in Biology and Medicine, Vol. 23, p-15, 1993. N. Pradhan and D. Narayana Dutt, `Data Compression by Linear Prediction for Storage and Transmission of EEG Signals,' International Journal of Biomedical Computing, to appear.

P. K. Sadasivan and D. Narayana Dutt, `Minimization of EOG Artefacts from Corrupted EEG Signals Using Neural Network Approach,' Computers in Biology and Medicine, to appear.

D. Narayana Dutt, `Spectral Estimation of EEG Signals Using Cascaded Inverse Filters,' International Journal of Biomedical Computing, to appear.

P. K. Sadasivan and D. Narayana Dutt, `A Nonlinear Estimation Model for Adaptive Minimization of EOG Artifacts from EEG Signals,' International Journal of Biomedical Computing, to appear.

N. Pradhan and D. Narayana Dutt, `Use of Single Board Array Processor with a Microcomputer for Improved Measurement of Brain Stem Auditory Evoked Response,' Journal of Instrument Society of India, Vol. 22, p-84, 1992.

N. Pradhan, D. Narayana Dutt and S. Moosajee, `Real Time System for Multichannel Compressed Spectral Array Analysis of EEG Signals,' Modelling, Simulation and Control, C, Vol. 157, p-1, 1992.

D. Narayana Dutt, `Ray Transmission in Coastal Seas Using Nonlinear Velocity Profiles,' Journal of Sound and Vibration, Vol. 157, p-538, 1992.

D. Narayana Dutt, `Estimation of Linear Predictor Coefficients of Speech in the Presence of Noise Using Modified Normal Equations,' Acoustics Letters, Vol. 13, p-113, 1990.

D. Narayana Dutt, `Linear Segmentation of Velocity Profile in Sea Water,' Journal of Sound and Vibration, Vol. 132, p-161, 1989.

------------------------------------------------------------------------ OFFICE: 2.23 (CIP)
PHONE: +91 80 309 2283
EMAIL: dndutt@ece.iisc.ernet.in