On Fri, 6 Dec 2002, McCarty, Paul wrote: > It seems to me that if the towers just included their GPS location in > messages you could use that information to define an area between the > towers that you are most likely to be located in. This is obviously a > large area and could be miles across, but for some purposes just knowing > you are in the middle of downtown Manhattan could be useful. It is possible to do relativistic pings (time of flight mutual triangulation) with ~cm accuracy. This is something ultrabroadband/digital pulse radio best excels in. Here you don't even need base stations, as the architecture is ad hoc: if you're in the area, you're a node in a mesh. Base stations don't need ephemerides nor nuke clocks, being statical. Their mutual drift will be ~mm year tops. -- Subscription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" toWear-Hard Mailing List Archive (searchable): http://wearables.blu.org Please, *PLEASE* don't subscribe through a forward/expander/false domain
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