Robots created at the University of California are able to look through solid walls using Wi-Fi signals
The differences in transmitted and received Wi-Fi signal strengths show the presence of hidden objects
Measuring the received field strength allows the robots to produce an accurate map of the structure
This technique may also be useful in archeological sites for non-invasive mapping
The robots traverse the perimeter of an object and alternately transmit and receive Wi-Fi radio signals
Robots created by a team working at the University of California, Santa Barbara are able to look through solid walls using just Wi-Fi signals. With potential applications in search and rescue, surveillance, detection and archeology, these robots have the capability to identify the position and outline of unseen objects within a scanned structure, and then categorize their composition as metal, timber, or flesh.
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