2.3 Length of baseline
The accuracy of satellite signal received with GPS receiver can reach millimeter level, but
due to the signal suffers ionosphere and troposphere infection when transmitting through
aerosphere, the accuracy will be depressed
2.3 Length of baseline
The accuracy of satellite signal received with GPS receiver can reach millimeter level, but
due to the signal suffers ionosphere and troposphere infection when transmitting through
aerosphere, the accuracy will be depressed. To settle this problem, we adopt adjustment by use of
two receivers to observe one baseline at the same time, thus the influence of ionosphere on
observation can be mostly counteracted. The shorter of baseline, the better is the effect, so we
suggest baseline is not more than 20 kilometers when designing. |
