Xandem's technology is simple and powerful. In the following video, Xandem founder Joey Wilson demonstrates through-wall device-free localization. He enters a home surrounded by simple radio devices. He does not carry any kind of electronic device on his body, nor are any devices deployed inside the home. The system estimates his location and displays it as a red "x" on a floorplan in the upper-right corner of the screen.

The average tracking error for this particular experiment was approximately 2 feet. Xandem continues to research the use of simple wireless networks for through-wall tracking. If you have an interest in this research, or would like more information, please contact info@xandem.com