Applied DSP and VLSI Research Group

Interests and expertise

Interests and expertise

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 applications.

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.

People

Find out who is involved with the Applied DSP and VLSI Research Group.

Pen and glasses on written paper

Publications

Selected publications from members of the Applied DSP and VLSI Research Group.