Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

The cover image shows the first flight of the NASA/AeroVironment Helios prototype that took place on Sep. 8, 1999 from Edwards Air Force Base, California. Handling and performance were test under ...

Originally designed as a transmission system for the joint German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) and NASA HELIOS Sun-monitoring mission, the antenna is now used ...