Sonar; Resolution - Marine Sea Scan Manual

Slant range
corrections
indicated in
the waterfall

3.2.4.7.2 Sonar

3.2.4.7.2.1 Resolution

SONAR Resolution Settings
CAUTION:
lowers the amount of data saved. This change affects not only the screen, but also the
actual raw data that is saved to the disk.
Along Track: This setting affects the ping rate and several aspects of SONAR data collection.
First, it controls the virtual width of data or virtual samples per channel. The lower the number of
virtual samples per channel, the faster the SONAR can be towed; the opposite is also true.
TIP: A higher resolution requires a slower survey speed. Reduce the resolution to scan
an area quickly and find the target, then raise the resolution to get a more detailed
image when the target has been found. For general use, keep the slider in the middle.
© 2013 Marine Sonic Technology, Ltd.
Layback setting indicated in
the waterfall
This change affects the raw data saved to the disk. Lowering the resolution
Turn off the 10% lines from the waterfall. These lines
show at 10% and 20% of the current range.
Draw the Data events. These will be color-coded lines with
an acronym for the event. The example below is for a
Layback (LB) Event.
The Sonar Resolution Settings Window
settings page allows for the following
adjustments:
Across Track: This settings page lets the user
make changes to the resolution (level of
detail) of the data collected. This option
determines how many samples per channel
are received.
Sea Scan Survey 19