I suspect the world would be better if that percentage were even greater.
An Undergraduate Project in Imaging Radar
Ankit Agrawal, Bob Fougere, Mridula Oravakandy and Greg Siemens wrote up their B.S. report Design, Construction and Testing of a Microwave Radar System for Through-Wall Surveillance (PDF) format. I have only skimmed the report, but it appears they were able to detect people standing behind a test wall by using SAR (synthetic aperature radar) techniques. I’ve often wondered if you could do this with cheap 10ghz Gunnplexer horns. I’ll have to read this over in greater detail later.
Comment from Greg
Time 10/1/2004 at 4:41 pm
Mark,
There is a much more in-depth description of the entire RADAR unit including a link to the .pdf
thesis and some great photos. Check out http://www.ee.umanitoba.ca/~agrawal