Electrical and Information Technology
The department´s educational and research programmes covers vast areas of the IT field: from telecommunication via antennas to artificial intelligence, from basic theories via algorithms to implementations on silicone and in biomedical systems. Digital information is currently used in nearly any context; digital broadcast of radio and television, internet and mobile devices are just some examples. Future devices and systems will increasingly be based on a complicated collaboration between different techniques. It is in this light the department´s wide range should be seen.
In Electroscience, about 60 employees are working in four research groups; Electronic Design, Radio Systems, Signal Processing and Theoretical Electrical Engineering. The groups work together focusing on applications in, for example, wireless communication and medical engineering.
Research covers most of the aspects of analogue and digital technology, from a theoretical and comprehensive system level, to specific algorithms and circuits. Courses are given in a number of programmes, but mostly for the programme in Electrical Engineering. Research is divided into the four main areas given below:
In Electronic Design, integrated circuits (microchips) with specific functions are designed and developed, mainly for wireless communication, image processing and medical applications, e.g. pacemakers. The demands vary depending on the area of application, but high computational capacity and low energy consumption are central. Research is carried out in both analogue and digital circuits, as well as conversion between these kinds of signals.
Keywords: radio systems, radio channels, propagation of electromagnetic waves, antennae, wireless networks, mobile telephony, systems with multiple input and output (MIMO), multi-carrier technology (OFDM), ultra-wideband (UWB), communication with medical implants
Researchers in Radio Systems are working on the basic issues of radio communication. They are studying the propagation of radio waves from transmitters to receivers, and developing technical solutions as well as complete systems. Their main aims are to develop quick, efficient and robust systems for future wireless communication.
Keywords: medical signal processing, mathematical modelling, cardiology, arrhythmia, pacemakers, audiology, oto-acoustic emissions, epilepsy
Within the field of Signal Processing, the electrical activity of the human body is being investigated with the aim of developing methods and algorithms for medical diagnostics and treatment. Special emphasis is placed on methods for the analysis of heart signals resulting from arrhythmia, such as atrial fibrillation, or in connection with dialysis; and also the modelling and analysis of biological rhythms, mainly heart frequency variability.
Keywords: electromagnetic field theory, antennae, wave propagation, mobile telephony, scattering theory, optical fibres, non-intrusive sample analysis
Theoretical Electrical Engineering is a fundamental scientific subject, with many applications. Methods are being developed in electromagnetic wave propagation and the investigation of materials (i.e. how electromagnetic waves, such as radio waves, are reflected from or propagate in different materials) and efficient antennae. Apart from mobile telephony, applications include surveillance systems and non-intrusive sample analysis.
The activities in Information Technology cover large areas of what is generally termed IT: from telecommunication, via image compression, to artificial intelligence: from basic theory, via algorithms, to implementation on chips.
Digital information is used in almost everything these days: digital radio and TV, the Internet and mobile telephones are just a few examples. In the future, equipment and systems will be based more and more on the complicated interaction between various techniques. This involves everything from household goods, computer networks at home and multimedia systems, to huge communication networks and information systems.
Current research projects include data and image compression, coding theory, cryptology, modulation and access methods, signal processing, model-based diagnostics (artificial intelligence, AI) and computer systems for search engines and other information systems.
Around 35 employees work at the division. Courses are given in the programmes of Computer Science, Electrical Engineering, Industrial Management and Engineering, Engineering Mathematics and Information & Communication Engineering.
Communication Systems applies an all-embracing systems perspective to digital communication which include a substantial amount of software. Research follows two main directions; telecommunication systems and software systems.
About 30 people are employed at the division. Courses are mainly given in the programmes of Computer Science, Electrical Engineering and Information and Communication Engineering, and some in Industrial Management and Engineering.
Telecommunication Systems focuses mainly on issues of capacity in the design of various systems, e.g. fixed telephony, data transmission, the Internet, mobile telephony, wireless networks, broadband, etc.