This architecture implements a feedback loop that forces the phase of the VCSO to be coherent with the phase of the crystal oscillator ... which produced SAW dispersive delay lines for radar pulse ...

Abstract: Radar-based near-field wrist pulse detection systems currently face robustness challenges, particularly when dealing with different subjects and alignment discrepancies. These limitations ...

Abstract: This study proposes a sensing method using a millimeter-wave array radar and a depth camera to measure pulse waves at multiple sites on the human body. Using a three-dimensional shape model ...