Patent ID: 7456780
Filing Date: 2008-11-25
Classification: G01S

Abstract:
1. A process for detecting a moving target and reconstructing a scene with a moving target from scattering data, said process comprising: collecting an image of a scene, the image containing scattering data from the scene representing decomposing said scattering data into a plurality of subsets of scattering data; choosing a plurality of candidate motions; forming for each pairwise combination of each said subset of scattering data with each said candidate motion a target-focused subimage, wherein said target-focused subimage is focused according to said candidate motion; for each said candidate motion, using a plurality of said target-focused subimages focused according to said candidate motion to form joint balanced estimates of (1) a focused subimage containing only scatterers moving with said candidate motion and (2) a defocused image containing only stationary scatterers; for each said candidate motion using said estimate of the focused subimage containing only scatterers moving with said candidate motion and said estimate of the defocused image containing only stationary scatterers to make a binary decision with regard to the presence or absence of a target moving with said candidate motion.