Interests
- Research into Global Navigation Satellite Systems (GNSS) receivers
- Research into integration of GNSS with wireless communication systems
- Research into natural algorithms for fixed and adaptive digital filtering
- Development of fractional-delay filters for sample rate conversion and beamforming
- Research in the area of modelling and design of wireless communication systems
- Development of new signal processing architectures and architectural component realisation in full-custom integrated circuits
- Development of switched-capacitor filters for telecommunication applications
- Development of IIR filter design techniques based upon balanced model truncation of much higher order FIR filters
- Development of computer-aided modelling and design packages for the design of discrete-time filters
- Evaluation of adaptive notch filters for tracking and eliminating harmonic interference in mains-powered systems
- Research into sigma-delta data conversion techniques for baseband and bandpass and RF applications
- Design and silicon implementation of bitstream codecs for mobile telephone applications
- Development of high-fidelity decimators using polyphase allpass filters
- Development of Global Positioning Satellite (GPS) systems and Global Navigation Satellite Systems (GNSS) receiver
- Research into asynchronous logic techniques to realise low-power digital signal processors
- Research into flexible receiver structures and architectures for digitally configurable radio (software defined radio) applications
- Development of ultra-low-power digital signal processors for use in digital hearing aids and other body-wide biomedical applications
- Research into high-quality digital image processing for biomedical applications
- Development of low-power low-complexity biomedical instrumentation for portable application
Expertise
- Low-power biomedical instrumentation for technology assisted diagnosis deploying custom circuits, and mobile computing platforms
- Multimode software configurable ultra-low-power GNSS receiver including but not limited to GPS, Galileo and Glonas
- Patented technology to implement zero-IF and low-IF receiver topologies with enhanced performance eliminating RF impairments for GNSS applications
- Reduced complexity FIR/IIR filter design techniques and their efficient realizations
- Fixed/adaptive FIR/IIR filter techniques for transmission/reception paths of future mobile communication systems
- Power/space/performance-efficient implementation of image/audio/video processing algorithms on custom/FPGA platforms
- Ultra-low-power reconfigurable full-custom mixed Analog/Digital processor development and design
- Design and implementation novel adaptive schemes for non-linear distortion compensation and frequency estimation in communication systems
- Ultra-low-power algorithms for real-time biomedical, communication systems applications including hearing aids and morphology
- Imaging techniques for the analysis of tissue/blood samples directed towards classification of normal/malformed cells
- Reduced complexity ultra-low-power algorithms and architectures for fixed-point custom and FPGA based arithmetic circuits
- The MPEG standard and its custom silicon/FPGA implementations
- Sigma-Delta modulator based systems
- Sigma-Delta based data acquisition and conversion systems with their associated DSP
- Sigma-Delta based fractional frequency synthesis systems and compression techniques