Two drones see through walls in 3D using WiFi signalsJune 21, 2017   Researchers use commercially available equipment including tiny Raspberry Pi computerResearchers at the University of California Santa Barbara have demonstrated the first three-dimensional imaging of objects through walls using an ordinary wireless signal. Applications could include emergency search-and-rescue, archaeological discovery, and structural monitoring, according to the researchers. Other applications could include military and law-enforcement surveillance. Calculating 3D images from WiFi signals In the research, two … more…