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Research Output 1900 2019

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Article
2009
4 Citations (Scopus)

A Frequency/Detector Pruning Approach for Loudness Estimation

Krishnamoorthi, H., Spanias, A. & Berisha, V., 2009, In : IEEE Signal Processing Letters. 16, 11, p. 997-1000 4 p.

Research output: Contribution to journalArticle

Pruning
Detector
Detectors
Computational complexity
Computational Complexity
21 Citations (Scopus)

Experiments with sensor motes and Java-DSP

Kwon, H., Berisha, V., Atti, V. & Spanias, A., 2009, In : IEEE Transactions on Education. 52, 2, p. 257-262 6 p.

Research output: Contribution to journalArticle

Digital signal processing
hardware
Signal processing
experiment
Sensors
43 Citations (Scopus)

Information flow and application to epileptogenic focus localization from intracranial EEG

Sabesan, S., Good, L. B., Tsakalis, K., Spanias, A., Treiman, D. M. & Iasemidis, L. D., Jun 2009, In : IEEE Transactions on Neural Systems and Rehabilitation Engineering. 17, 3, p. 244-253 10 p.

Research output: Contribution to journalArticle

Electroencephalography
Partial Epilepsy
Surgery
Linear systems
Large scale systems
6 Citations (Scopus)

On the use of labview in signals and systems

Thiagarajan, J. J., Tsakalis, K., Spanias, A. & Thornburg, H., 2009, In : ASEE Annual Conference and Exposition, Conference Proceedings.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Perceptually-motivated all-pole modeling

Atti, V. & Spanias, A., 2009, In : IEEE Signal Processing Letters. 16, 8, p. 695-698 4 p.

Research output: Contribution to journalArticle

Pole
Poles
Modeling
Speech Analysis
Speech analysis

THE java-DSP phase 3 project: An interdisciplinary multi-university effort

Spanias, A., Hinnov, L., Stiber, M., Akujuobi, C., Pattichis, M., Pattichis, C., Doering, E., Ramamurthy, K., Mehta, S., Ayyanar, R. & Thornburg, H., 2009, In : ASEE Annual Conference and Exposition, Conference Proceedings.

Research output: Contribution to journalArticle

2008
1 Citation (Scopus)

Gradient projection-based channel equalization under sustained fading

Atti, V., Spanias, A., Tsakalis, K., Panayiotou, C., Iasemidis, L. & Berisha, V., Feb 2008, In : Signal Processing. 88, 2, p. 236-246 11 p.

Research output: Contribution to journalArticle

Fading (radio)
Equalizers
Mean square error
Bit error rate
Experiments
10 Citations (Scopus)

ON the use of Java-DSP in earth systems

Ramamurthy, K., Spanias, A., Hinnov, L. & Ogg, J., 2008, In : ASEE Annual Conference and Exposition, Conference Proceedings.

Research output: Contribution to journalArticle

Earth (planet)
2007
5 Citations (Scopus)

Adaptive antenna beamforming using quiescent pattern control

Miller, S. R. & Spanias, A., 2007, In : IEEE Antennas and Wireless Propagation Letters. 6, p. 651-654 4 p., 913327.

Research output: Contribution to journalArticle

Beamforming
Antennas
Direction of arrival
Transient analysis
1 Citation (Scopus)

Interfacing Java-DSP with a TI DSK for use in a signal processing class

Spanias, A., Huang, C. W., Natarajan, A., Ferzli, R., Kwon, H., Atti, V., Berisha, V., Iasemidis, L., Krishnamoorthi, H., Spanias, P., Misra, S., Banavar, M., Tsakalis, K. & Haag, S., Jul 2007, In : Computers in Education Journal. 17, 3, p. 27-35 9 p.

Research output: Contribution to journalArticle

Signal processing
Fast Fourier transforms
hardware
Students
Hardware
3 Citations (Scopus)

Using J-DSP and labview to perform undergraduate

Spanias, A., Ramamurthy, K., Jayaraman, J., Banavar, M. & Huang, C. W., 2007, In : ASEE Annual Conference and Exposition, Conference Proceedings.

Research output: Contribution to journalArticle

6 Citations (Scopus)
psychoacoustics
recovery
broadband
Recovery
Bandwidth
2006
5 Citations (Scopus)

A collaborative project on java-dsp involving five universities

Spanias, A., Chilumula, R., Huang, C. W., Stiber, M., Loizou, P. & Kasparis, T., 2006, In : ASEE Annual Conference and Exposition, Conference Proceedings.

Research output: Contribution to journalArticle

Educational technology
Innovation
1 Citation (Scopus)

A multi-dimensional scheme for controlling unstable periodic orbits in chaotic systems

Chakravarthy, N., Tsakalis, K., Iasemidis, L. D. & Spanias, A., Jan 9 2006, In : Physics Letters, Section A: General, Atomic and Solid State Physics. 349, 1-4, p. 116-127 12 p.

Research output: Contribution to journalArticle

orbits
dynamical systems
1 Citation (Scopus)
Sensor networks
Signal processing
Wireless sensor networks
Sensors
Hardware
1 Citation (Scopus)

Interfacing J-DSP with a TI DSK for use in a signal processing class

Huang, C. W., Natarajan, A., Ferzli, R. & Spanias, A., 2006, In : ASEE Annual Conference and Exposition, Conference Proceedings.

Research output: Contribution to journalArticle

Signal processing
Fast Fourier transforms
Students
Hardware
Starters
21 Citations (Scopus)

Performance of precoded OFDM with channel estimation error

Ahmed, K. I., Tepedelenlioglu, C. & Spanias, A., Mar 2006, In : IEEE Transactions on Signal Processing. 54, 3, p. 1165-1171 7 p.

Research output: Contribution to journalArticle

Channel estimation
Orthogonal frequency division multiplexing
Channel state information
Error probability
2005
89 Citations (Scopus)

Interactive online undergraduate laboratories using J-DSP

Spanias, A. & Atti, V., Nov 2005, In : IEEE Transactions on Education. 48, 4, p. 735-749 15 p.

Research output: Contribution to journalArticle

Signal processing
Digital signal processing
simulation
Students
Textbooks
17 Citations (Scopus)

Perceptual segmentation and component selection for sinusoidal representations of audio

Painter, T. & Spanias, A., Mar 2005, In : IEEE Transactions on Speech and Audio Processing. 13, 2, p. 149-161 13 p.

Research output: Contribution to journalArticle

sine waves
augmentation
audio signals
loudness
ranking
2004
74 Citations (Scopus)

Autoregressive Modeling and Feature Analysis of DNA Sequences

Chakravarthy, N., Spanias, A., Iasemidis, L. D. & Tsakalis, K., Jan 1 2004, In : Eurasip Journal on Applied Signal Processing. 2004, 1, p. 13-28 16 p.

Research output: Contribution to journalArticle

DNA sequences
String searching algorithms
Error analysis
Signal processing
10 Citations (Scopus)

Measuring the direction and the strength of coupling in nonlinear systems - A modeling approach in the state space

Veeramani, B., Krishnamurthi, N., Prasad, A., Iasemidis, L. D., Spanias, A. & Tsakalis, K., Jul 2004, In : IEEE Signal Processing Letters. 11, 7, p. 617-620 4 p.

Research output: Contribution to journalArticle

Transfer functions
Nonlinear systems
State Space
Nonlinear Systems
Transfer Function
21 Citations (Scopus)

On-line signal processing using J-DSP

Spanias, A., Atti, V., Papandreou-Suppappola, A., Ahmed, K., Zaman, M. & Thrasyvoulou, T., Oct 2004, In : IEEE Signal Processing Letters. 11, 10, p. 821-825 5 p.

Research output: Contribution to journalArticle

Java
Signal Processing
Signal processing
Students
Z transforms
2003
24 Citations (Scopus)

Adaptive eigen-projection beamforming algorithms for 1-D and 2-D antenna arrays

Foutz, J., Spanias, A., Bellofiore, S. & Balanis, C., 2003, In : IEEE Antennas and Wireless Propagation Letters. 2, p. 62-65 4 p.

Research output: Contribution to journalArticle

Beamforming
Antenna arrays
Antennas
Adaptive algorithms
1 Citation (Scopus)

A new approach towards predictability of epileptic seizures: KLT dimension

Venugopal, R., Krishnamurthi, N., Prasad, A., Spanias, A., Sackellares, J. C. & Iasemidis, L. D., 2003, In : Biomedical Sciences Instrumentation. 39, p. 123-128 6 p.

Research output: Contribution to journalArticle

Epilepsy
Mathematical transformations
Electroencephalography
Seizures
Temporal Lobe Epilepsy
1 Citation (Scopus)

Fast adaptive algorithms using eigenspace projections

Nair, N. G. & Spanias, A., Sep 2003, In : Signal Processing. 83, 9, p. 1929-1935 7 p.

Research output: Contribution to journalArticle

Adaptive algorithms
Autocorrelation
Eigenvalues and eigenfunctions
2 Citations (Scopus)

Measuring information flow in nonlinear systems - A modeling approach in the state space

Veeramani, B., Prasad, A., Krishnamurthi, N., Spanias, A. & Iasemidis, L. D., 2003, In : Biomedical Sciences Instrumentation. 39, p. 65-70 6 p.

Research output: Contribution to journalArticle

Bioengineering
Chaotic systems
Physics
Electrical engineering
Nonlinear systems
20 Citations (Scopus)

Predictability of epileptic seizures: A comparative study using Lyapunov exponent and entropy based measures

Sabesan, S., Krishnamurthi, N., Prasad, A., Spanias, A., Sackellares, J. C. & Iasemidis, L. D., 2003, In : Biomedical Sciences Instrumentation. 39, p. 129-135 7 p.

Research output: Contribution to journalArticle

Entropy
Epilepsy
Electrodes
Seizures
Information Theory
7 Citations (Scopus)

Sinusoidal analysis-synthesis of audio using perceptual criteria

Painter, T. & Spanias, A., Jan 1 2003, In : Eurasip Journal on Applied Signal Processing. 2003, 1, p. 15-20 6 p.

Research output: Contribution to journalArticle

Masks
2002
2 Citations (Scopus)

Adaptive modified covariance algorithms for spectral analysis

Kitsios, K., Spanias, A. & Welfert, B., May 2002, In : Signal Processing. 82, 5, p. 715-720 6 p.

Research output: Contribution to journalArticle

Spectrum analysis
Covariance matrix
Mean square error
110 Citations (Scopus)

Smart antenna system analysis, integration and performance for Mobile Ad-Hoc Networks (MANETs)

Bellofiore, S., Foutz, J., Govindarajula, R., Bahçeci, I., Balanis, C., Spanias, A., Capone, J. M. & Duman, T. M., May 2002, In : IEEE Transactions on Antennas and Propagation. 50, 5, p. 571-581 11 p.

Research output: Contribution to journalArticle

Smart antennas
Mobile ad hoc networks
Systems analysis
Antennas
Direction of arrival
97 Citations (Scopus)

Smart-antenna system for mobile communication networks Part 2: Beamforming and network throughput

Bellofiore, S., Foutz, J., Balanis, C. & Spanias, A., Aug 2002, In : IEEE Antennas and Propagation Magazine. 44, 4, p. 106-114 9 p.

Research output: Contribution to journalArticle

Smart antennas
Beamforming
Telecommunication networks
Throughput
Directional patterns (antenna)
139 Citations (Scopus)

Smart-antenna systems for mobile communication networks. Part 1: Overview and antenna design

Bellofiore, S., Balanis, C., Foutz, J. & Spanias, A., Jun 2002, In : IEEE Antennas and Propagation Magazine. 44, 3, p. 145-154 10 p.

Research output: Contribution to journalArticle

Smart antennas
Telecommunication networks
Antennas
Beamforming
Throughput
2001
15 Citations (Scopus)

Low bit-rate speech coding based on an improved sinusoidal model

Ahmadi, S. & Spanias, A., Jul 2001, In : Speech Communication. 34, 4, p. 369-390 22 p.

Research output: Contribution to journalArticle

Speech Coding
Speech coding
coding
Phase Error
Linear Prediction
2000
31 Citations (Scopus)

Development of a web-based signal and speech processing laboratory for distance learning

Spanias, A., Urban, S., Constantinou, A., Tampi, M., Clausen, A., Zhang, X., Foutz, J. & Stylianou, G., Apr 2000, In : Computers in Education Journal. 10, 2, p. 21-26 6 p.

Research output: Contribution to journalArticle

Speech processing
Distance education
distance learning
Digital signal processing
Signal processing
5 Citations (Scopus)

Improved approach to robust speech recognition using minimum error classification

Lin, M. T., Spanias, A. & Loizou, P., Jan 2000, In : Speech Communication. 30, 1, p. 27-36 10 p.

Research output: Contribution to journalArticle

Robust Speech Recognition
Speech recognition
Telephone
Speech Recognition
Digit
552 Citations (Scopus)

Perceptual coding of digital audio

Painter, T. & Spanias, A., 2000, In : Proceedings of the IEEE. 88, 4, p. 451-512 62 p.

Research output: Contribution to journalArticle

Discrete cosine transforms
Filter banks
Signal analysis
Standardization
Fillers
1999
127 Citations (Scopus)

Cepstrum-based pitch detection using a new statistical V/UV classification algorithm

Ahmadi, S. & Spanias, A., 1999, In : IEEE Transactions on Speech and Audio Processing. 7, 3, p. 333-338 6 p.

Research output: Contribution to journalArticle

roots of equations
Additive noise
smoothing
statistical analysis
Statistical methods
7 Citations (Scopus)

Improved speech recognition using a subspace projection approach

Loizou, P. C. & Spanias, A., 1999, In : IEEE Transactions on Speech and Audio Processing. 7, 3, p. 343-345 3 p.

Research output: Contribution to journalArticle

speech recognition
Speech recognition
divergence
projection
1998
12 Citations (Scopus)

A new phase model for sinusoidal transform coding of speech

Ahmadi, S. & Spanias, A., 1998, In : IEEE Transactions on Speech and Audio Processing. 6, 5, p. 495-501 7 p.

Research output: Contribution to journalArticle

coding
coders
linear prediction
Phase matching
sine waves
1997
1 Citation (Scopus)

Improving discrimination of confusable words using the divergence measure

Loizou, P. & Spanias, A., Feb 1997, In : Journal of the Acoustical Society of America. 101, 2, p. 1106-1111 6 p.

Research output: Contribution to journalArticle

discrimination
divergence
preprocessing
gradients
Divergence
11 Citations (Scopus)

Speech enhancement using state-based estimation and sinusoidal modeling

Deisher, M. E. & Spanias, A., Aug 1997, In : Journal of the Acoustical Society of America. 102, 2 pt 1, p. 1141-1149 9 p.

Research output: Contribution to journalArticle

augmentation
harmonics
sine waves
noise spectra
estimators
1996
14 Citations (Scopus)

A software tool for introducing speech coding fundamentals in a DSP course

Spanias, A. & Painter, E. M., 1996, In : IEEE Transactions on Education. 39, 2, p. 143-152 10 p.

Research output: Contribution to journalArticle

Speech coding
Digital signal processing
coding
Speech analysis
Global system for mobile communications
52 Citations (Scopus)

High-performance alphabet recognition

Loizou, P. C. & Spanias, A., 1996, In : IEEE Transactions on Speech and Audio Processing. 4, 6, p. 430-445 16 p.

Research output: Contribution to journalArticle

alphabets
Telephone
Hidden Markov models
telephones
discrimination
21 Citations (Scopus)

Time- and frequency-domain X-block least-mean-square algorithms for active noise control

Shen, Q. & Spanias, A., Nov 1996, In : Noise Control Engineering Journal. 44, 6, p. 281-293 13 p.

Research output: Contribution to journalArticle

Active noise control
Least-Squares Analysis
Noise
filters
Adaptive algorithms
1995
3 Citations (Scopus)

Automatic recognition of syllable-final nasals preceded by /ε/

Loizou, P., Dorman, M. & Spanias, A., 1995, In : Journal of the Acoustical Society of America. 97, 3, p. 1925-1928 4 p.

Research output: Contribution to journalArticle

syllables
vowels
markers
education
acoustics
1 Citation (Scopus)

Speech coding for mobile and multimedia applications

Spanias, A., Apr 28 1995, In : Proceedings of SPIE - The International Society for Optical Engineering. 10279, p. 115-144 30 p., 1027908.

Research output: Contribution to journalArticle

Speech Coding
Speech coding
Mobile Applications
Multimedia Applications
multimedia
1994
1 Citation (Scopus)
Fixed point arithmetic
Fast Fourier transforms
Computational complexity
Experiments
215 Citations (Scopus)

Speech coding: a tutorial review

Spanias, A., Oct 1994, In : Proceedings of the IEEE. 82, 10, p. 1541-1582 42 p.

Research output: Contribution to journalArticle

Speech coding
Vocoders
Military communications
Cellular radio systems
1993
2 Citations (Scopus)

Analysis/synthesis of speech using the short-time Fourier transform and a time-varying ARMA process

Spanias, A., Loizou, P., Lim, G., Chen, Y. & Hu, G., Apr 1993, In : IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E76-A, 4, p. 645-652 8 p.

Research output: Contribution to journalArticle

Short-time Fourier Transform
Moving Average Process
Autoregressive Moving Average
Autoregressive Process
Time-varying
7 Citations (Scopus)

Block time and frequency domain modified covariance algorithms for spectral analysis

Spanias, A., Nov 1993, In : IEEE Transactions on Signal Processing. 41, 11, p. 3138-3152 15 p.

Research output: Contribution to journalArticle

Spectrum analysis
Computational complexity