Northrop Grumman’s AN/AAQ-37 distributed aperture system (DAS) and AN/APG-81 radar recently demonstrated the ability to detect, track and target ballistic missiles.
The DAS autonomously detected all five rockets, launched in rapid succession, and tracked them from initial launch well past the second stage burnout.
[thumb]http://www.irconnect.com/noc/press/pages/news_releases.html?d=260297[/thumb]