Panagiotis Theodorakopoulos

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We present a simple control strategy to visually track a ground target with a fixed wing UAV. The approach uses a lateral guidance law that aims at reaching a given target view angle, which is determined on the basis of simple geometric considerations. Simulations compare our approach with previous contributions in terms of target visibility ratio, and(More)
We present a control strategy that permits a fixed wing UAV to visually track a ground target. A pursuit-evasion strategy aims at optimizing the visibility of the pursuer UAV after having predicted the best action for the evading target. This is achieved by using two iterative methods that optimise various mission based criteria: obstacle avoidance and(More)
Web-based teaching is one of the new directions for education. It has the advantage of being an anytime and interactive network, having high capacity and rich content environment, enhancing and facilitated independent learning and teacher-student communication. In this work we propose a Web-based learning environment for geography that provides geographic,(More)
Acknowledgements First of all, I would like to thank the Greek State Scholarship Foundation (I.K.Y.) for offering me the chance to prepare this Ph.D. in France, by financing this project. Secondly, I would like to express my gratitude to my supervisor, Simon Lacroix, whose great sense of humor, expertise, patience, warm leadership skills, and well-targeted(More)
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