Human designers use previous designs extensively in solving new design problems and Case-Based Reasoning (CBR) provides a knowledge representation paradigm which attempts to model such process. In this thesis we present a case-based approach to solving design problems by retrieving…

This thesis considers the dimensional analysis theory in engineering. A Knowledge-Aided Design Tool is presented which permits the solution of many aspects of Dimensional Analysis for electromagnetics. The KAD Tool was coded in the language Lisp with Allegro Common Lisp…

In Radio Detection and Ranging, the inverse problem is that of acquiring knowledge of the physical features of a body by making observations of the reflected energy and synthesising the model from the measured data. This procedure is in contrast…

Personal communication services (PCS) is one of the fastest growing sectors in telecommunications. PCS can be provided by wireless cellular communication systems, that operate in radio environments characterized as multipath fading channels. This thesis addresses the subject of signal detection…

The ability to suggest a means of solving a novel problem through the remembering and recalling of previous experiences is a tenet of the Case-based reasoning (CBR) paradigm. This approach is well suited for the engineering design domain since an…

In the recent years, we have witnessed an increased interest in space-time coding, because of its effectiveness in overcoming the impairments due to the signal fading phenomenon. A large number of such codes require channel knowledge for decoding. Therefore, research…

Voltage-Source Converters form the basic modules of a class of power electronic controllers of Flexible AC Transmission Systems (FACTS) which include the STATic COMpensator (STATCOM), the Static Synchronous Series Compensator (SSSC) and the Unified Power Flow Controller (UPFC). The mathematical…

This thesis deals with the control and protection of Multi-Terminal DC (MTDC) transmission systems based on Voltage-Source Converters (VSCs). The MTDC system enables several AC systems to be integrated by way of a DC network. Potential applications of the MTDC…

This thesis aimed to provide a knowledge base and methodologies to help minimize electromagnetic interference (EMI) in healthcare. Two methods were developed, for the first time, to quantify EMI risk due to radio frequency (RF) sources in hospitals. The first…

New digital communication applications, such as multimedia, require very powerful error correcting codes that deliver low error rates while operating at low to moderate ratios (SNRs). Turbo codes have reasonable complexity and can achieve very low error rates if a…