1. University of Peloponnese,Information and Telecommunications Department,Tripoli,Greece
2. Hellenic Naval Academy,Division of Combat Systems, Naval Operations, Sea Sciences, Navigation, Electronics & Telecommunications,Piraeus,Greece
3. National and Kapodistrian University,Department of Physics,Athens,Greece
4. Naval Postgraduate School,Department of Physics,Monterey,California,USA
5. Naval Information Warfare Center Pacific,Atmospheric Propagation,San Diego,California,USA