Stealth radar system sees through trees, walls -- undetected

Ohio State University engineers have invented a radar system that is virtually undetectable, because its signal resembles random noise. The radar could have applications in law enforcement, the military, and disaster rescue.

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<p><a href="http://www.physorg.com/news70539481.html">Stealth radar system sees through trees, walls -- undetected</a></p> <p>Ohio State University engineers have invented a radar system that is virtually undetectable, because its signal resembles random noise. The radar could have applications in law enforcement, the military, and disaster rescue.</p>