Each
pattern of distribution of the positions calculated by the
three receivers is quite similar to each other. The ‘Fix’
solution rate, or the rate of fixed positions with the flag
of ‘Fix’, is 87.7 % for 145,259 fixed positions which are
calculated every second for 40 hours. The data
transmission delay measures normally 1.6-1.7 s. The
communication line of DMCA has originally been
designed to quit sending the data every 1.5-5.0 minutes
for several, often several dozen seconds, depending on
the areas and the periods of time. It is widely desired
that the system should be improved for continuous
positioning.