Triton Perspective User Manual

Page 86

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P a g e

F e b r u a r y 2 0 1 1

The image above shows two multibeam navigation lines, the thicker blue line is currently
selected in the navigation file tree layer and the red line is currently not selected.

When importing raw data files into Perspective, the import/processing wizard automatically
launches. While the wizard does give the option to process the navigation for the data type
being imported, multiple stages of navigation processing cannot be accomplished before the
wizard completes the mosaic or DTM creation using the partially processed navigation data.
If there is reason to believe that the navigation data needs cleanup (poor satellite coverage,
ROV/AUV tracking, etc.), then it is best to skip the creation of the mosaics or DTMs at this
stage and process the navigation completely first.

Navigation processing is an important step to obtaining clean results and some thought
should go into what parameters to use and what level of processing is necessary for the
collected data. For example, hull or pole mounted systems tend to have a cleaner position
signal and require less processing than towed sonar or ROV/AUV surveys.

Presented in the next section are a couple possible workflows a user could follow for
processing their navigation data.

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