  In this paper, we present 3D high resolution radar imaging at millimeter-Wave
(mmWave) frequencies by means of a combination of virtual Multiple Input
Multiple Output (MIMO) Frequency Modulated Continuous Wave (FMCW) Radars and
Synthetic Aperture Radar (SAR) which results in a compact, low-cost, and
high-speed 3D mmWave imagery system with low complexity.
