Direct Digital Synthesis (DDS) systems generate fine frequency resolution signals over a broad spectrum that are used in a wide variety of applications such as multi-mode RF, communications, measurements and test. A ...

This thesis proposes a new approach to the management of the Authentication, Authorization and Accounting (AAA) function that forms a core part of many service provider networks. The principle idea outlined is to move this ...

A labial flue pipe is a well known tone generator, which is familiar and easily recognisable as the organ pipes seen in many concert halls and churches. However, the design and understanding of the sounding mechanism of ...

This research addresses synchronisation issues in security protocols for wireless communications. A new class of attacks, termed Suppress-and-Desynchronise (SD) attacks, is introduced. This attack uses the vulnerabilities ...

Quality of service (QoS) is a measure of a communication network performance that reflects the transmission quality and service availability as perceived by the users. In the context of telecommunications, voice communication ...

The characterisation of power control principles that underpin the performance dynamics of communication is an important feature in the user level in Ambulatory Wireless Sensor Networks. This thesis uses Model Predictive ...

The need for accurate voice source characterisation is an established goal in speech processing research. Practical limitations prohibit the widescale use of a glottal source/vocal tract filter implementation for many ...

The surface electromyogram (sEMG) conveys information about the physiological properties of muscles. Unlike the power spectrum, the bispectrum can suppress noise when characterizing non-Gaussian random signals. In this ...

The electromyographic (EMG) signal provides information about the performance of muscles and nerves. At any instant, the shape of the muscle signal, motor unit action potential (MUAP), is constant unless there is movement ...

This paper considers the application of the discrete-time structured singular value to assess the robustness of systems subject to real parametric uncertainties. Since the associated uncertainty set is strictly real, ...