by: Madison Ruppert
August 7, 2012
In today’s world, the seeming safety and privacy provided by four walls and a roof is quickly diminishing with microchips enabling mobile devices to see through walls, microchips allowing mobile devices to provide ultra-precise location information, the hijacking of cell phone camerasand even stealthily recording sound and other environmental information, supposedly for advertising purposes.
Of course, those examples represent just one of the many ways in which our privacy is being invaded and diminished with a vengeance in the United States today.
Now new method is being explored by researchers which could allow people to use so-called “bistatic WiFi radar” at a distance in order to covertly detect and monitor people moving behind walls.
The researchers published the findings in a paper called “Through-the-Wall Sensing of Personnel Using Passive Bistatic WiFi Radar at Standoff Distances” in IEEE Transactions on Geoscience and Remote Sensing, volume 50, Issue 4.
The emphasis appears to be the ability to detect people “uncooperatively and covertly,” something which is also becoming increasingly important in facial recognition technology and other biometric technologies.
The researchers, who are affiliated with the Department of Security and Crime Science at the University College London in the United Kingdom, have demonstrated the first successful through-the-wall (TTW) detection of moving people using passive WiFi radar.