Through The Wall Detection

The files below show results of recent experiments to explore the capability of our second generation imaging radar to detect stationary individuals through interior walls. At the right is a figure that shows the geometry for the tests. The imaging radar is at zero range in the figure with an 8' x 8' stud wall faced with a single sheet of drywall at a distance of 2.5 meters (8.2') from the radar. In the test, a person walks from behind the radar around the left side of the wall, circles around the chair at 5.8 meters (19') and then sits down attempting to stay as motionless as possible. After a period of time, the person gets up out of the chair and walks back toward the radar and around the left side of the wall. The two video clips shown use different motion detection algorithms - one designed for detecting large motions and the other for small motions. Note that with the large motion detection algorithm, the person disappears from the image when stationary.