2 ms·
Expect everything bounces around, so it's like trying to decipher TV by watching the flickering on the wall. :) Actually, MIMO makes use of this (it works bette
by Geee 12y ago
Expect everything bounces around, so it's like trying to decipher TV by watching the flickering on the wall. :) Actually, MIMO makes use of this (it works better in 'bouncy' non-line-of-sight multipath environments). By just a small antenna separation, the spatial channel characteristics can vary a lot as the signals might take a completely different paths, and the receiver is able to separate them from each other.
- IvyMike 12y ago> decipher TV by watching the flickering on the wall. Off topic, but... this has been done. Amazes me to this day. "Optical Time-Domain Eavesdropping Risks of CRT Displays" http://www.cl.cam.ac.uk/~mgk25/ieee02-optical.pdf http://www.cl.cam.ac.uk/~mgk25/ieee02-optical.pdf