List of members

Bal Virdee
Professor Virdee's research interest covers wireless terrestrial and satellite microwave technology that provides ultra-high speed data rates necessary for real-time broadband communications. In particular, his research work is focussed on developing devices and sub-systems for next generation of wireless communications systems. His work includes: reconfigurable devices; techniques to suppress spurii in devices such as filters for electromagnetic compatible (EMC) systems; photonic band-gap (PBG) miniature devices; novel microstrip resonators for frequency selective applications using fractal, metamaterial devices; efficient high-power rf amplifiers; ultra-broadband amplifiers; novel RF high power amplifier design technique for cellular base-stations; ultra-low noise tuneable reference oscillators with low phase noise; broad tuning low noise voltage controlled oscillators (VCO); efficient low-noise oscillators; linear broadband highly efficient power amplifiers; multimode filters; ultra-broadband frequency discriminating devices; low-profile miniature antennas; and UWB communications.

Professor M. E. Brinson (visiting professor) 
The rapid growth in everyday products which rely on electronic, communication and software technologies has largely driven a world-wide expansion of research in these and related disciplines. Today the average person has come to expect ever increasing functionality from cheaper and cheaper high technology products. Current research in computer based product development relies heavily on the availability of software tools for the design and testing of next generation products. Professor Brinson’s current research interests centre on the development of software tools for modelling and performance testing of established and emerging technologies. Since 2006, he has been a member of the Qucs development team, specialising in device and circuit modelling, testing and document preparation. Qucs (Quite universal circuit simulator) is an open source project whose primary mission is the development of a software package licensed under the GNU Public Licence (GPL) for circuit simulator, compact device modelling, and circuit macromodelling from DC to RF and beyond. His current research activity is concentrating on the development of VHDL, Verilog and Verilog-A component models linked to C++ based circuit simulator code via XML interfaces. Emerging CMOS, optical, thermal and mechanical technologies are also forcing new approaches to the software engineering of circuit simulators and their related graphical user interfaces. Work on these technologies and their successful integration within the framework of a universal circuit simulator forms the central core of my present research interests and proposed activities in the near future.

Dr Nicholas Ioannides 

Dr Ioannides’ research activities include: plastic optical fibre (POF) LAN and components; POF data links and bandwidth optimisation; POF sensors; and nanotechnology devices. He is establishing research in nanotechnology within the Centre in collaboration with leading European based institutions. Ground breaking research work by the group includes: the formation of stacked-cup carbon nanotubes using chemical vapor deposition from ethanol over silica; and hydrogen activated axial inter-conversion in SiC nanowires.

Pancham Shukla 
Dr Shukla's research interested is in the area of signal and image processing. He has worked on mathematical signal/image processing and algorithm development for diverse applications such as sampling and reconstruction, biomedical diagnostics and structural health monitoring. His work focuses on wavelet transforms and their applications. In addition to conventional theoretical approaches, Dr Shukla exploits state-of-the-art computing tool such as Matlab for efficient prototyping and simulations. His recent projects include audio de-noising, ECG signal processing, biometric signal processing for security, image fusion, image inpainting, special effect image generation, sparse sampling and super-resolution imaging.

Dr Demetri Kalymnios (visiting researcher) 
Dr Kalymnios is an expert in plastic optical fibres for data communications and sensor applications. He was the first person in the UK to pioneer work on POF technology in 1987. He has been involved with numerous consultancies and industrial research contracts dealing with POF. His current research activities include: POF LAN and components; POF data links and bandwidth optimisation; and POF sensors.

Seyed Mortaza Vaezi-Nejad 
Dr Vaezi-Nejad's research activities are in the area of measurement techniques, instrumentation and control. His current projects include: the development of novel high-speed colour recognition systems; investigation into a novel acousto-optic transducer; antenna arrays for radio mobile communications; and various aspects of power systems control. He is also researching into certain aspects of engineering education.

Shahram Salek Zamankhani 
The traditional way to improve the security of wired computer networks is by applying access control policies to the front door of network. However these policies are not sufficient and effective when applied to the Wireless Local Area Networks (WLANs). WLANs are different from the traditional wired LANs in terms of their exposure to potential threats, vulnerability and security techniques. Intrusions to WLANs have proliferated exponentially and handling such threats is becoming more and more difficult to eradicate. Dr Salekzamankhani has developed a standardised reference model to design, compare and evaluate the existing or future Intrusion Handling Systems (IHSs) for WLANs. His research work focuses on intrusion and denial-of-service detection: development of efficient, cost-effective and scalable techniques for detection of intrusion and denial-of-service attacks.

Professor Edward Steers 
Professor Steers’ research activity revolves around atomic spectroscopy. He was coordinator of the EC "Thematic Network" on analytical GD, and was the driving force for the EU "Analytical GD Research Training Network", GLADNET, coordinated by EMPA (Thun, Switzerland). He closely collaborates with the Fourier Transform Spectroscopy Laboratory at Imperial College, London. He is a past chairman of the Spectroscopy Group of the Institute of Physics, and past chair of the Association of British Spectroscopists.

Hassan Nabijou 
One of the most important applications of signal processing and in particular statistical signal processing is in telecommunications Industry. Great deal of research work world-wide is dedicated to address problems associated with the transmission, coding, modelling and detection of signals and systems in global communication networks. Current research projects Dr Nabijou is involved with are in the fields of speech recognition, noise reduction, channel equalisation, acoustic noise control and echo cancellation. Dr Nabijou is addressing these problems by means of higher-order statistics and non-linear system modelling using Volterra functional series.

Mr Mike Cullinan 
Mikes Cullinan's research at present is directed at the hardware implementation of Neural Networks (NN). Hardware implementation is still an active area for NN even though for application purposes most systems are emulated on conventional computers. Work is being carried out in to the development of a model for an analogue memory element. Using Equation Defined Device techniques the development of a Floating Gate MOSFET model is being created and investigated within the QUCS (Quite Universal Circuit Simulator) software. The model is built on the physical structure of the floating gate device, whereby an electrode is isolated within the oxide layer and charged and discharged through that oxide layer. The techniques being investigated for charging and discharging of the floating gate electrode are: Fowler-Nordheim tunnelling, and Hot-electron injection. The development of this model is at present the basis of a PhD thesis.

Muhittin Onadim 
Mr Onadim's research and development projects are in the area of embedded systems, industrial automation, data acquisition, computer interfacing and control. He has worked on a number of industrial projects, including a probe positioning system for an electrochemical potential scanner, a digital count-down timer for a UV exposure unit and development of subsystems and firmware for a medical respirator. He has extensive experience on various phases of product development, ranging from basic design/prototyping to EMC/Safety testing.

Saeed Reza Taghizadeh 
Dr Taghizadeh’s research is in the area of digital signal processing. He leads the Communications Technology cluster in the School.

Dr Sohail Mushtaq
Dr Mushtaq is Pillow Postdoctoral Research Fellow. His research focuses on developing accurate analytical techniques for atomic and molecular spectroscopy. His research includes: optimization of discharge conditions for plasma nitriding by optical emission spectroscopy; and the effects of traces of molecular gases in analytical glow discharge.