Software Features
SeaKing Profiling Sonar
0374-SOM-00002, Issue: 04
39
© Tritech International Ltd.
in a pair can be applied, otherwise there is
option to select a
Master
or
Slave
head for
single head operation or
None
to switch off
mean altitude calculation. There is also option
to apply a
Global
mean altitude value which
has been calculated by another Profiler head
set (e.g., from another set of heads in a 2nd
Profiler application on the display).
Filter Gating
This is a filter to remove spurious or noise points
from the scan. This control can be adjusted
between 1 and 500cm. For example, with a
setting of 10cm, if the range of a point is
greater than 10cm away from its neighbouring
point then it will be excluded from the mean
altitude calculation. The mean altitude algorithm
will look for trends of data and will remove a
sequence of points that represent a trench or
pipe outline. The
Filter Gating
is applied
above this to remove spurious points only.
Draw Reference Line
Enable/Disable the drawing of the reference line
on the Profiler application main screen. The
colour of this line is configured in the
Profiler
Colour Setup
dialog, accessible from the
Colour Setup
in the
Profiler
menu. The
Overlay2
colour is used for the reference line.
Make Global
When this is enabled, a Global Mean Altitude
value is updated within Seanet Pro. This value
may then be picked up by other Profiler or
Imager applications (see Example 5.1, “Global
Mean Altitude with Two Profiler Applications”
and Example 5.2, “Global Mean Altitude with
Profiler and Sonar Applications”.
Using Dual Profilers for Mean Altitude calculation
If a dual head Profiler system is used to calculate mean
altitude then it is very important that the Profiler heads are time
synchronized. If the heads are not synchronized, they will both
calculate a separate mean altitude value. Refer to Section 5.3,
“Synchronisation” for further details.
