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Carrier Phase Data Collection 7
Alternatively, if you think you are unlikely to lose lock, you can move
to the next feature before sufficient carrier phase data has been
collected.
Note – This is possible because all features recorded during a block
achieve the precision associated with that block (see Figure 7.3).
In earlier versions of the Asset Surveyor software, a point feature
could only use carrier phase data collected while that point feature
was being recorded. Data collected before or after that did not affect
the feature.
As long as a block eventually contains sufficient useful data, you can
generate precise positions for any feature that falls within it.
Figure 7.3 shows how individual features benefit from blocks of
carrier phase data stored at the time they were recorded.
Figure 7.3 Features relative to blocks
Blocks of carrier phase data
BLOCK 1 BLOCK 2
A B
C
Individual features logged during this time
BLOCK 3
In this example, Block 1 contains sufficient carrier phase data. Feature
A was started after the counter started for Block 1 and ended before
the success beep, but during postprocessing it derives the full benefit
of all data recorded for Block 1.
TSC1 Asset Surveyor Operation Manual 169