Towards Three-Dimensional Active Incoherent Millimeter-Wave Imaging

Active incoherent millimeter-wave (AIM) imaging is a new technique that combines aspects of passive millimeter-wave imaging and noise radar to obtain high-speed imagery. Using an interferometric receiving array combined with small set of uncorrelated noise transmitters, measurements of the Fourier transform domain of the scene can be rapidly obtained, and scene images can be generated quickly via two-dimensional inverse Fourier transform. Previously, AIM imaging provided two-dimensional reconstructions of the scene. In this work we explore the use of active millimeter-wave imaging for automotive sensing by investigating array feasible layouts for automobiles, and a new technique to impart range estimation to obtain three-dimensional imaging information.