Wireless Sensing for the Respiratory Activity of Human Beings: Measurements and Wide-band Numerical Analysis

<table>Mean and standard deviation of <svg height="11.425" id="M43" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 21.8375 11.425" width="21.8375" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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t-10.5 -39.5l-43 -241q37 -13 83 -13q67 0 125.5 45t58.5 129z" id="x1D443"></path></g>
</svg> in function of the distance <svg height="11.175" id="M44" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 13.775 11.175" width="13.775" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.113)"><path d="M780 372q0 -191 -178 -297q-128 -75 -335 -75h-250l7 27q61 7 77 22t28 76l77 398q11 62 0 76.5t-77 22.5l6 28h292q164 0 258.5 -67.5t94.5 -210.5zM678 375q0 119 -73 180.5t-201 61.5q-62 0 -82 -13q-17 -7 -25 -53l-80 -427q-8 -47 -4 -62t26 -20q24 -6 80 -6
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</svg> for sitting, standing, and lying postures.</table>

International Journal of Antennas and Propagation

fig6

Figure 6

Figure 6: Wireless Sensing for the Respiratory Activity of Human Beings: Measurements and Wide-band Numerical Analysis 