High-accuracy, through-wall, 3-D motion tracking

[jes]

High-accuracy, through-wall, 3-D motion tracking

Technology could revolutionize gaming, fall detection among the elderly, and more – by Abby Abazorius

 

[garyc]

Looks like an implementation of passive radar. First tried in 1935 and started to become big in the Second World War. Has got a lot better since then.,

https://en.wikipedia.org/wiki/Passive_radar