Radar Resolution Gets a Boost

T he radar devices used to spot landmines have trouble distinguishing features at the depths at which these objects are typically buried, which can lead to false positives and thus wasted time. Now researchers have demonstrated a proof of concept for a radar method that can resolve smaller objects at greater depths than was previously possible [1]. The researchers say that their technique could allow detection of landmines buried a fewmeters underground, far deeper than the few centimeters accessible with current technology. Archeologists could also use the newmethod to find buried artifacts.