Wi-Fi signals enable gesture recognition

:idea: It is interesting to see a passive radar system being developed for personal gesture recognition.

:ugeek: There have been some interesting DIY experiments in the past using analog TV multipath ghosting for passive radar experiments: http://www.frisnit.com/radar/

:o Similar passive radar methods have been used by enemy troops to shoot down American stealth aircraft by looking for "holes" in the distributed cellphone network noise signatures. Seeing silence where there should be noise is a "dead" giveaway.

:D But THIS new wifi-based research that adds to our "arsenal" of personal input methods useful to VR applications is a good thing...

"geekmaster" wrote:

:o Similar passive radar methods have been used by enemy troops to shoot down American stealth aircraft by looking for "holes" in the distributed cellphone network noise signatures. Seeing silence where there should be noise is a "dead" giveaway.

And American police is testing such tech to detect movement behind walls:
https://www.networkworld.com/community/blog/stealthy-wifi-spy-sees-you-through-walls-thanks-your-wireless-router
http://www.popsci.com/technology/article/2012-07/seeing-through-walls-wireless-router

But let us bring this kind of tech to the VR world. ;)

EDIT: There the position of "the subject" can be tracked. Could we use this for position tracking with the Rift?