Posts Tagged ‘microphone hear through wall’

Seeing and listening through a wall: radio waves and optical fibers


A research team from University of Utah is at work on a project that allows usage of a small network of wireless radio transceivers, in order to detect movements of people on the other side of a wall. Thanks to this detection system, based on the RTI (Radio Tomographic Imaging) concept which allows the images […]

Spying a suspect in a hotel: cold blood and technology


When you are carrying out a surveillance and monitoring operation, you may happen to have to follow your suspect inside a hotel. In such cases, you must be extra careful and be as nondescript as possible, to avoid arising any unnecessary attention either from the suspect or the hotel staff. The first step is obtaining […]