New WiVi Can See Through Walls

wiviA new system being developed by MIT’s Department of Electrical Engineering and Computer Science could give all of us the ability to spot people in different rooms using low-cost Wi-Fi technology. According to MIT Professor Dina Katabi, “We wanted to create a device that is low-power, portable and simple enough for anyone to use, to give people the ability to see through walls and closed doors,” Katabi says.

The system, called “Wi-Vi,” is based on a concept similar to radar and sonar imaging.  But rather than using a band of the electromagnetic spectrum that is available only to the military, it transmits a low-power Wi-Fi signal and uses its reflections to track moving humans. It can do so even if the humans are in closed rooms or hiding behind a wall.

More details at MIT website

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