3 ms·
GPS could be augmented by a ground-based system. Similar to how WAAS works for aircraft, it's GPS plus a ground "enhancer".
by eternalny1 7y ago
GPS could be augmented by a ground-based system.
Similar to how WAAS works for aircraft, it's GPS plus a ground "enhancer".
- ne9xt 7y agosee RTK GPS. uses a fixed ground station with a known position. the phase shift of the moving object’s gps signal is used to achieve centemeter-level precision.