/. [Snooping Through Walls with Microwaves]
Eugen Leitl
eugen at leitl.org
Wed Oct 26 06:34:00 PDT 2005
Link: http://slashdot.org/article.pl?sid=05/10/26/0424211
Posted by: ScuttleMonkey, on 2005-10-26 10:26:00
denis-The-menace writes "According to an article from newscientist,
scientists have devised a system to [1]use microwave energy for
surveillance. If people are speaking inside the room, any flimsy
surface, such as clothing, will be vibrating. This modulates the radio
beam reflected from the surface. Although the radio reflection that
passes back through the wall is extremely faint, the kind of
electronic extraction and signal cleaning tricks used by NASA to
decode signals in space can be used to extract speech. Although, I
doubt it would work in [2]this room"
References
1. http://www.newscientist.com.nyud.net:8090/article.ns?id=dn8208
2. http://www.imagireal.com.nyud.net:8090/gallery/foiled
----- End forwarded message -----
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Eugen* Leitl <a href="http://leitl.org">leitl</a>
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