If you made any changes in Pure, your changes will be visible here soon.

Research Output 1900 2019

Filter
Article
1986
3 Citations (Scopus)

TWO-STAGE POLE-ZERO PREDICTOR.

Mikhael, W. B., Spanias, A., Kang, G. & Fransen, L., Mar 1986, In : IEEE Transactions on Circuits and Systems. CAS-33, 3, p. 352-354 3 p.

Research output: Contribution to journalArticle

Poles
Computer simulation
1987
7 Citations (Scopus)

COMPARISON OF SEVERAL FREQUENCY-DOMAIN LMS ALGORITHMS.

Mikhael, W. B. & Spanias, A., May 1987, In : IEEE Transactions on Circuits and Systems. CAS-34, 5, p. 586-588 3 p.

Research output: Contribution to journalArticle

Adaptive algorithms
Computer simulation
1988
11 Citations (Scopus)

FAST FREQUENCY-DOMAIN ADAPTIVE ALGORITHM.

Mikhael, W. B. & Spanias, A., Jan 1988, In : Proceedings of the IEEE. 76, 1, p. 80-82 3 p.

Research output: Contribution to journalArticle

Adaptive algorithms
1989
18 Citations (Scopus)

Accurate representation of time-varying signals using mixed transforms with applications to speech.

Mikhael, W. B. & Spanias, A., Feb 1989, In : IEEE Transactions on Circuits and Systems. 36, 2, p. 329-331 3 p.

Research output: Contribution to journalArticle

Discrete Fourier transforms
Walsh transforms
Hadamard transforms
10 Citations (Scopus)

Efficient modeling of dominant transform components representing time-varying signals.

Mikhael, W. B. & Spanias, A., Feb 1989, In : IEEE Transactions on Circuits and Systems. 36, 2, p. 331-334 4 p.

Research output: Contribution to journalArticle

Signal reconstruction
Impulse response
Discrete Fourier transforms
Walsh transforms
Hadamard transforms
1991
4 Citations (Scopus)

A hybrid transform method for analysis/synthesis of speech

Spanias, A., 1991, In : Signal Processing. 24, 2, p. 217-229 13 p.

Research output: Contribution to journalArticle

Speech coding
43 Citations (Scopus)

Transform methods for seismic data compression

Spanias, A., Jonsson, S. B. & Stearns, S. D., May 1991, In : IEEE Transactions on Geoscience and Remote Sensing. 29, 3, p. 407-416 10 p.

Research output: Contribution to journalArticle

data compression
Discrete cosine transforms
Data compression
seismic data
coding
1992

A frequency selective adaptive algorithm

Spanias, A., 1992, In : Computers and Electrical Engineering. 18, 3-4, p. 301-313 13 p.

Research output: Contribution to journalArticle

Adaptive algorithms
Speech processing
Poles
11 Citations (Scopus)

Mixed Fourier/Walsh transform scheme for speech coding at 4.0 kbit/s

Spanias, A. & Loizou, P. C., Oct 1992, In : IEE Proceedings, Part I: Communications, Speech and Vision. 139, 5, p. 473-481 9 p.

Research output: Contribution to journalArticle

Walsh transforms
Speech coding
Fourier transforms
Vector quantization
Sampling
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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