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Short-Range Micro-Motion Sensing with Radar Technology

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Editors: Changzhan Gu 1 ; Jaime Lien 2
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Publication Year: 2019

Human hands are natural tools for performing actions and gestures that interact with the physical world. Radar technology allows for touchless wireless gesture sensing by transmitting radio frequency (RF) signals to the target, analyzing the backscattering reflections to extract the target's movements, and thereby accurately detecting gestures for Human Computer Interaction (HCI). A key advantage of this technology is that it allows interaction with machines without any need to attach a sensing device to the hands. Led by researchers from Google's Project Soli, the authors introduce the concept and underpinning technology, cover all design phases, and provide researchers and professionals with the latest advances and innovations in microwave and millimeter wave radar sensing to capture relative movements such as micro gestures.

Inspec keywords: motion measurement; radar applications

Other keywords: radar technology; short-range micro-motion sensing; gesture recognition; vital sign detection; MM-wave communications; angular velocity measurement; radar sensor; positioning; structural displacement measurement; digital signal processing; health status; machine learning

Subjects: Radar equipment, systems and applications; General electrical engineering topics; Spatial variables measurement

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