Microwave imaging of moving subjects by combined use of video-tracker and multi-static radar

This paper presents preliminary experiments with a geometrically simple target and a new architecture of the microwave screening system capable of obtaining radar images of moving subjects. The system is based on the combined use of a video-tracker and a linear antenna array. Inverse synthetic aperture is formed by arbitrary motion of the target in the vicinity of the array. A video-based system tracks the target and allows coherent processing of synchronously registered radar data, and eventually obtaining detailed radar images of concealed objects.