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Control of Systems with Limited Capacity

Virtually all real life systems are such that they present some kind of limitation on one or many of its variables, physical quantities. These systems are designated in this thesis as systems with limited capacity. This work is treating control related problems of a subclass of such systems, where the limitation is a critical factor. The thesis is composed of four parts. The first part is treatin

An Optimisation Approach to Cartographic Generalisation

Cartographic generalisation is the process of simplifying a representation to suit the scale and purpose of a map. As such, generalisation has always been a central part in map production. This thesis is a contribution to the ongoing work on automating cartographic generalisation. Two topics are treated: optimisation methods in graphic generalisation, and propagation of updates between cartographi

Stabilization of Vehicle Formations-A Case Study

This work treats a specific multi-vehicle control case, namely six vehicles on the Multi-Vehicle Wireless Testbed (MTWT), wich is an arena at Caltech, California, built for doing experiments on small vehicles. A model is set up and a controller is found through simulations that stabilizes the system. Stability is proven through a Nyquist-like criterion.