Digital Commons Network^™

Efficient Strategies For Robust Constrained Model Predictive Control, Marcin Tomasz Cychowski

Theses

Practical difficulties associated with the implementation of stabilizing robust model predictive control (MPC) laws are well known. The algorithms typically rely on the solution of the so-called min-max optimization problem. All such algorithms display a large online computational burden and often suffer excessive conservativeness. In this thesis, two original algorithms will be developed that address the conservativeness and complexity issues in min-max MPC.

The first algorithm is a min-max MPC based on the concept of closed-loop prediction. The synthesis procedure is realized using linear matrix inequalities and thus the implementation of the closed-loop min-max MPC control law can be performed …

Ultra Wide Band Radar For People Location And Tracking, Julien Le Kernec

Theses

The development of the UWB radar for people location and tracking was motivated by the need for a location and tracking system that performs well indoor. The objectives of the project are:

1. Conduct literature surveys of Ultra Wide Band and Location & Tracking.

2. Determine which UWB pulse is the most suitable for the UWB radar.

3. Design the concept of the UWB radar based on the literature reviews and the UWB pulse chosen.

4. Build an UWB radar prototype.

5. Measurement and Evaluation of the prototype.

This thesis introduces UWB key historical developments and properties; but also, its …

A Low Noise Amplifier For An Ultra Wideband Receiver, Tomasz Waliwander

Theses

The Ultra Wideband Technology, although derives from the early works on time-domain electromagnetics, only recently attracted the attention of the research and industrial institutions, mainly thanks to establishing a proper frequency mask by Federal Communication Commission. The FCC regulations allocate the immense 3.1 - 10.6 GHz microwave band that has never been accessible in a one segment before.

The intrinsic features of the UWB radio such as low power, immunity to multipath fading and eavesdropping, high 3D resolution capability and ability of'seeing' through the solid obstacles with addition to achievable very high data rates, makes it very attractive for many …

Next Generation Heterogenous Telemetry Modules, Pierce Brady

Theses

Remote monitoring is used in many applications within the scientific, industrial and commercial communities. These applications can range from the simple monitoring of wind farm generators to the complex behavioural monitoring of a local fox habitat to the simple but extremely urgent monitoring of water depth for a flood prone river. Each application of remote monitoring requires different aspects of the remote monitoring device, but typically, not all these applications can be implemented, as the technologies required for their construction are extremely large, expensive, energy inefficient, slow and do not meet the constraints for the given application.

However with the …

Disappearing User Interface In Ubiquitous Computing: A Pointing And Gesture Sensing System Using An Ultrasonic And Radio Frequency Location Technology, Stephania Yimana Kigadye

Theses

Weiser’s [1] vision of ubiquitous computing presents a different paradigm of computing which attempts to push computers into the background towards invisibility. Therefore “new concepts for human-computer interaction have to be developed when envisioning ubiquitous computing scenarios [1]. Instead of a single screen-based user interface (UI), humans will interact with a number of devices that are distributed and interconnected. These eomputers range from highly personal and mobile applianees to systems that are integrated in everyday environments and are more or less invisible.”[7] As this project suggests, a disappearing user interface in ubiquitous computing can be designed as a gesture recognition …

Development Of A Service-Oriented Communication Platform For Heterogeneous Voice Over Ip Networks., Aisling O'Driscoll

Theses

As broadband services have become more widespread in recent years due to a variety of government initiatives and the establishment of Wireless Internet Service Providers, user requirements have evolved and the market has become more competitive. Whilst this is beneficial for consumers it means that Internet Service Providers must offer a more diverse range of services coupled with standard broadband packages to distinguish themselves from their competitors, generate new revenue and strengthen their competitive advantage. Therefore many providers are looking to Service Oriented Architectures (SOAs) to provide communication platforms, enabling services such as Voice over IP (VoIP) along with other …

System Identification Of A Pasteurisation Process: A Comparison Of Direct And Indirect Methods, Niel Canty

Theses

The primary focus of this research is to identify a linear model for a direct steam injection (DSI) pasteurisation process which is a component of a large-scale pilot evaporation process widely used in the dairy industry. The pasteurisation process has been identified as a key component of the evaporation process. The author believes that no previously published work has focused on identifying models for a DSI pasteurisation process which makes this work an original contribution to the area. The pasteurisation process can be modelled as a single-input, single-output (SISO) process with a measurable disturbance. Thus two transfer functions were required …

Linux Based Pda Gateway For Wireless Sensor Networks, Áine Mccarthy

Theses

Recent years have seen a dramatic increase in the development and deployment of intelligent sensors and their use with a plethora of networking protocol technologies. Wireless Sensor Networks (WSN) can be used to monitor the environment, objects in the environment and the interaction of these objects with each other. Examples include environment and habitat monitoring, structural monitoring, disaster management and emergency response. The deployment of such large-scale WSN possess many challenges, the most important being scalability, portability, fault tolerance, adaptability and ubiquitous connectivity. There also exist many challenges when trying to establish communication with WSN. WSN can function as a …