Process Multibeam Backscatter

There are quite a few ways to process backscatter. Should you remove the Simrad TVG? Account for grazing angle? Apply a beam pattern correction? Okay but what about multimode systems?? And then there are some cosmetics we can apply to get an even better mosaic.
No surprise, I got quickly confused so I have tried to captured all the methods in this one script. I found this script particularly usefull to compare the effect of each processing step. I would try a couple of methodes and then decide which way to go. The "definitative" ss-files would be used for mos2.

USAGE: ProcessBackScatter
                -file file.merged
                (-deTVG )
                (-degraz (default -option 2)
                (-bp (-multimode))
                (-glfill)
                (-glhist 500 (i.e. rolling 500 pings))
                (-downgrade (-along/across default along 2))
                (-show_bp)
                (-view)
                (-initstr 167 235 )
                (or use none of the options; will do makess with no thrills)

Get the script here.

For example:

The bare minimum, as logged in the .all file	Remove Simrad' TVG correction	Apply the beam pattern and fill in between
ProcessBackScatter -file mergedfile -view -initstr 159 229	ProcessBackScatter -file mergedfile -view -initstr 159 229 -deTVG	ProcessBackScatter -file mergedfile -view -initstr 159 229 -bp -glfill

Pim 21-06-'11

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