Table 2 shows the positioning result at a fixed point on
land in TUMM. The authors tried RTK-GPS positioning
for more than 10 hours, making reference to both
GPS-based stations. With Kawasaki GPS-based CS, the
‘Fix’ solution rate is much lower than with Nerima
GPS-based CS. It implies that the data transmission
delay from Kawasaki GPS-based CS often exceeds 2 s.