Sunday, August 16, 2015

See Through Walls by the Glow of Your Wi-Fi

Researchers at University College London (UCL) have devised a system for detecting the Doppler shifts of ubiquitous Wi-Fi and mobile telephone signals to “see” people moving, even behind masonry walls 25 centimeters thick. 

The method, which could be useful in situations from hostage-takings to traffic control, won the Engineering Impact Award in the RF and Communications category at this National Instrument’s NI Week 2015 meeting (which convened in Austin, Tex., 3-9 August). more

Wi-Vi Sees Movement Behind Walls Using Cheap Wi-Fi Tech (2013)
Wireless Network Signals Produce See-Through Walls (2009)