February 03, 2011      

Existing technologies have made unmanned ground-vehicle and IFR (instrument flight rules) airplane flight commonplace. However, at low altitudes, the presence of obstructions such as trees, mountains, and buildings has made the operation of unmanned air systems in near-earth environments more difficult. Unmanned helicopters, for example, can only fly autonomously in mapped areas known to be free of obstructions.

A new navigation and sensing solution has been developed that enables full-size, au...

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