Freehand mm-Wave Imaging With a Compact MIMO Radar

This communication presents a freehand imaging system, which takes full advantage of compact multiple-input multiple-output (MIMO) radar to provide the real-time results by means movements. The system is based on commercial radar-on-chip, equipped with four receivers and two transmitters, an optical tracking (i.e., motion capture system) for retrieving its position attitude. reduced size enables handheld operation, making possible create synthetic aperture moving scanner over area interest. Due new degrees freedom respect previous implementations quasi-monostatic topologies, novel calibration strategy required in order mitigate positioning errors. After calibration, simulations measurements are accomplished revealing that multistatic setup significantly outperforms monostatic terms scanning speed image quality. Multimedia material provided illustrate this performance.