Edited DARPA video showing 2008 tests of the Artis-developed Iron Curtain anti-RPG active protection system for light tactical vehicles – here an HMMWV. DARPA in November 2009 awarded Mustang Technologies a contract to integrate Iron Curtain with its Crosshairs counter-shooter system for tests on an MRAP. Cued by the corner-mounted Crosshairs' radar, an optical sensor classifies the incoming threat and selects the aimpoint. When the RPG is just inches from the vehicle, the roof-mounted countermeasure fires straight down, deflagrating the warhead before it can detonate.

via YouTube – DARPA’s Iron Curtain Active Protection System.