[geow] [Geowanking] mapping sensor networks
mnl at well.com
Thu Sep 4 10:08:54 PDT 2003
Marc Pfister wrote:
>Are you thinking of something along the lines of a pseudolite system where
>by pinging RFID tags for their locations and then measuring the signal
>return time you can triangulate position? Which would let you scatter lots
>of cheap location tags around an area and then concentrate the electronics
>in a transmitter/reciver combo?
That's pretty much how differential gps works.(
http://www.navcen.uscg.gov/faq/dgpsfaq.htm) A crisp graphics overlay
for augmented reality requires very tight caliblration. The more
location beacons we can distribute, the easier the task ought to be.
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