I would like to thank all the people that helped me during my research, making my Ph.D. studies enjoyable and memorable. First, I like express my deep gratitude to my main supervisor, Karljohan Lundin Palmerius, for his research assistance, great discussions, and guidance through these years. You were always there when I needed help. I always felt lucky to have you as my supervisor and your vast knowledge, and passion for science inspired me a lot. Thank you so very much, KJ. I would like to also express my gratitude towards, Anders Ynnerman, for giving me the opportunity to pursue my research in a wonderful scientific environment. A special thanks is due to Stefan Gustavson, for his great help, inspiring discussions, and for always thinking out of the box and making science much more fun. I want to thank Pierangelo Dell'Acqua, for his guidance and friendship through these years, Matthew Cooper, for his great help with proofreading my thesis, our administrators, Eva Skärblom and Gun-Britt Löfgren, for their help and support, Camilla Forsell and Niklas Rönnberg for their assist with statistical analysis, and the people involved with the CUAS project, for their help and assistance. I also would like to thank all my colleagues and friends for their help and support, specially