[time-nuts] New Japanese GPS accuracy

Jim Lux jimlux at earthlink.net
Tue Jan 4 19:03:39 UTC 2011


Similar in concept to waas or tass, the satellite provides a nav signal and differential corrections. 

One of the goals is to make a nav system that performs well (sub meter) in urban canyons, which conventional gps does not

On Jan 4, 2011, at 10:39 AM, Joseph Gray <jgray at zianet.com> wrote:

> No details on how the extra Japanese satellite is making it possible
> to get this accuracy.
> http://www.crunchgear.com/2011/01/04/new-gps-system-boosts-accuracy-to-3cm/
> Joe Gray
> W5JG
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