Zephorah@discuss.online to Technology@lemmy.worldEnglish · 23 days agoOrdinary WiFi can now identify people with near perfect accuracywww.sciencedaily.comexternal-linkmessage-square234linkfedilinkarrow-up1766arrow-down121file-text
arrow-up1745arrow-down1external-linkOrdinary WiFi can now identify people with near perfect accuracywww.sciencedaily.comZephorah@discuss.online to Technology@lemmy.worldEnglish · 23 days agomessage-square234linkfedilinkfile-text
minus-squarephutatorius@lemmy.ziplinkfedilinkEnglisharrow-up3·23 days agoThe wavelength of a 5 Ghz wifi signal (the highest frequency in common use for wifi) is a little under 6 cm. So as a crude measure, it’s not going to resolve spatial features much smaller than that with much reliability.
The wavelength of a 5 Ghz wifi signal (the highest frequency in common use for wifi) is a little under 6 cm. So as a crude measure, it’s not going to resolve spatial features much smaller than that with much reliability.