Abstract: The operation of unmanned aerial vehicles (UAV) imposes various challenges on radio spectrum management to achieve safe operation, efficient spectrum utilization, and coexistence with legacy ...

In this article, we report the design and the control system of an all servo-driven bird-like flapping-wing aerial robot called USTBird. Different from most common flapping mechanisms combining gear ...

Vidoe hyperlapse 4K, Rain bow during the monsoon, aerial view beautiful image of the Amazing Rainbow after a rainstorm over the forest. Cloud time lapse. Mountain scenery, rainbows in the mountains, ...