Surveillance through walls and other opaque materials

Surveillance systems presently used by law enforcement officers cannot tell what is happening on the other side of a wall, behind bushes, around the corner, in the dark or through a dense fog. A new sensor has been developed that uses technology developed by the Department of Defense for missile warhead fuzing. This small, light weight, low power “radar” is based upon the fact that radio waves can penetrate non-metallic materials. This new surveillance capability can help provide information about what is in a wall, ceiling or floor or on the other side of a door or concrete wall. Real field scenarios are used in this paper to show how this radar works and how field users can tell if someone is moving inside a building, even from remote locations