Scribe <[EMAIL PROTECTED]> writes: >"The technology 'sees' the shapes made when radio waves emitted by mobile >phone masts meet an obstruction. Signals bounced back by immobile objects, >such as walls or trees, are filtered out by the receiver. This allows >anything moving, such as cars or people, to be tracked. Previously, radar >needed massive fixed equipment to work and transmissions from mobile phone >masts were thought too weak to be useful."
Isn't this what CDMA already does using RAKE receivers (different fingers track multiple signals, so it uses multipath as a feature rather than a problem). Presumably, with rather more signal processing than is simply used to improve signal quality, it'd be possible to use the capability to track interfering objects. Peter.
