Navy seeks to develop collision-avoidance system to enable UAVs to operate in civil airspace

http://mae.pennnet.com/display_article/371070/32/ARTCL/none/EXECW/1/Navy-seeks-to-develop-collision-avoidance-system-to-enable-UAVs-to-operate-in-civil-airspace/

The Office of Naval Research (ONR) in Arlington, Va., issued a broad agency announcement (BAA 10-009) Thursday for the Unmanned Air System (UAS) Autonomous Collision Avoidance System (ACAS) to enable unmanned aircraft to sense and avoid other aircraft while operating in the National Air Space System (NAS) -- whether or not the other aircraft have their own collision-avoidance equipment like transponders, TCAS, or other systems.