The RADAR Flashlight three years later: an update on developmental progress

The RADAR Flashlight was developed to be a law enforcement tool. It can detect the respiration signature of a motionless individual standing up to 5 meters behind a 20 centimeter hollow core concrete block wall. Wooden doors typical of those found on most homes are almost transparent to the system. Dry plywood, particle board and wall board do not attenuate the signal significantly. Most system applications for the RADAR Flashlight involve inspection of enclosed spaces beyond a door or wall. The RADAR Flashlight was first developed as a laboratory model. The prototype has transitioned from a laboratory model that underwent extensive testing to a ruggedized model that has been field tested by police agencies. This paper discusses the summary findings relating to both the laboratory and field test models developed by Georgia Tech Research Institute (GTRI).