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Short-range multi-mode continuous-wave radar for vital sign measurement and imaging

Short-range compact radar systems are non-invasive sensors that can locate the position and also monitor minute vibrations of the targets. They find wide use in healthcare monitoring, medical imaging, surveillance, industrial, occupancy sensing and gesture sensing applications. In this paper, we present a compact short-range 60 GHz low-power, system integrated radar system which can simultaneously operate several functional modes such as Range-Doppler Imaging, Range-Cross Range Imaging and Doppler interferometric mode without loss of performance. We also present the mechanism and processing to interleave various modes and experimentally validate the performance of the system.