Ερευνητικές Περιοχές
- Adaptive Signal Processing and System Identification
- Development of efficient algorithmic techniques (serial or parallel)
- Block and frequency domain quasi-Newton algorithms
- Fast solution methods for large systems
- Numerically robust adaptive least squares algorithms
- Theoretical convergence analysis and numerical behavior study
- Identification of systems with unknown impulse response
- High resolution spectral analysis
- Adaptive Beamforming
- Efficient Techniques for Direction of Arrivals Estimation and Tracking
- Advanced signal processing techniques for digital communications
- Efficient decision feedback equalization for high-speed communication applications
- Efficient semiblind parametric estimation of wireless communications channels
- Joint semiblind channel estimation and robust equalization
- Robust iterative (turbo) techniques for joint channel estimation and equalization
- Protocol-aided design of equalizers in high-speed wireless networks
- Channel estimation and equalization in MIMO/Multicarrier systems
- Blind Adaptive Techniques for Non-linear Channels
- Cooperative and Opportunistic Communications
- Modern Design of FIR Digital Filters
- Development of L2 - based methods for the design of 1-D FIR filters with reduced Gibb’s effects
- Design of 2-D and N-D filters via transformations
- Development of new initialization schemes for the acceleration of the Remez exchange algorithm
- Sensor Networks
- Source localization and tracking
- Cooperative communication strategies
- Image Processing and Analysis Applications
- Image Registration and Mosaicing
- Multispectral imaging
- 3-D object reconstruction by a sequence of images
- Digital Image Watermarking
- Biomedical Signal Processing
- Blood volume estimation using new bio-impedance measurements techniques
- Detection of visually evoked potentials
- Speech Processing
- Human voice modeling
- Speech data compression for speech transmission through narrowband channels
- Speech segmentation
- Speaker identification and verification methods
