3. Wide Area GPS Enhancement (WAGE)
WAGE is another handy technique to improve GPS accuracy; this involves usage of a highly accurate orbital data, satellite clock, and high quality GPS receivers with additional equipments for enhanced detection.
Basically, the setup is too complex to be discussed in detail, but in short, WAGE improves the horizontal accuracy of the GPS encrypted P(Y) Code.
Additional range correction data is combined with the satellite broadcast navigation message to achieve greater accuracy levels, and WAGE accuracy has been found to be better than 4.82 m, 95% horizontal.
Note: Off-late PPS accuracy has improved beyond WAGE specifications, and most of the latest generation atomic clocks on a chip, or receivers can easily outperform WAGE.
As per the latest updates, WAGE specifications have been superseded by Talon NAMATH, and it is recommendable to upgrade to Talon NAMATH for obtaining higher accuracy levels, in case you’re using WAGE at the moment.