Figure | Single-layer movable-type coding metasurface for human vital sign sensing. (IMAGE)
Caption
Figure | Single-layer movable-type coding metasurface for human vital sign sensing. a Flowchart of respiration monitoring using the proposed metasurface-based sensing system. b Experimental setup for contactless vital sign sensing. c Photograph of vital sign monitoring for Bob at Location 1. d-e Optimized coding pattern and corresponding electric field distribution when focusing EM wave on Bob’s chest. f Respiratory signal of Bob extracted by the sensing system. g Photograph of vital sign monitoring for Tom at Location 2. h-i Optimized coding pattern and corresponding electric field distribution when focusing EM wave on Tom’s chest. j Extracted respiratory signal of Tom.
Credit
Tie Jun Cui et al.
Usage Restrictions
Credit must be given to the creator.
License
CC BY