Re: looking for high quality GPS
Definitely not obsolete. It is called Differential GPS and is still used pretty heavily, with the FAA's Wide Area Augmentation System being a rather impressive example (remote stations measure variations in GPS signals and relay that data to master stations, which then send the data to geo-stationary satellites to relay the data to navigation systems).
Originally Posted by Slugman
For indoors, I'm not too sure there is any really good solution using GPS. Using DGPS and a bigger/active antenna might help, but no guarantees.
Please pardon the pedantry... and the profanity... and the convoluted speech pattern...
"You have failed me, Brain!"