Scanning For People Through Walls

cloudmaster writes: "RADAR-based "flashlight" for detecting movement (and respiration?) through walls and clothing: http://unisci.com/stories/20012/0416015.htm There's a bargraph that rises and falls as a person on the other side breaths... It needs to be held perfectly still, or it will detect it's own movement too, though. I wanna know why they don't just use an acelerometer to detect the devices motion and subtract that from the detected motion?"

Comments

Accelerometer

[cperciva]

I wanna know why they don't just use an acelerometer to detect the devices motion and subtract that from the detected motion?"

I'd guess that they don't have accelerometers accurate enough for the purpose. They're dealing with *very* small movements.

It won't work through metal, so..

[human bean]

we had all better stock up on aluminum foil before the drug dealers and terrorists start buying it up for use as wallpaper. :)

Or maybe the mylar metallic print wallpaper from the seventies will make a return. :(

Since it detects motion, one wonders how well it does with differentiation, what happens with large dogs, kinetic sculpture, mobiles, etc.