46
Operation
SeaBat UI - User Manual
4.9.7 Normalization
Figure 4-65
Normalization Details for the active frequency
The normalization process starts automatically on initial power up of the
system, but may also be initiated at any time by the operator.
The channel normalization feature provides a method for correcting the
output of each analogue receiver channel for minor variations in
amplitude and phase prior to input to the beamformer to improve data
quality. This is achieved by injecting a highly stable calibration tone into
each analogue receiver channel and comparing the output of each
channel to the average values for all the channels. This produces a much
‘cleaner’ input to the beamformer thereby reducing side lobes and
improving performance.
The data output is suspended while the normalization process is running
(yellow light indicator). In certain conditions the normalization may fail due
to excessive noise or out-of-tolerance channels.
Only for the active frequency the normalization can be started by
checking the option ‘Normalize’. The time and the status of the
normalization is displayed. During the normalization the led indicator in
the SeaBat toolbar will turn yellow, when the normalization is finished and
the process was successful the led indicator becomes green again.
4.10 Pipe
In the Pipe pane the operator can set the settings for the pipe detection
and tracking. The following section are available:
Pipe in sway detections (see below)
Pipe parts creation (see page 48)
Pipe route creation (see page 49)
Pipe steering (see page 49)
Five points environment (see page 50)
On top of the Pipe pane the pipe detection can be switched on/off by
checking or unchecking the Enable checkbox.
The pipe gating can be switched on/off by checking or unchecking the
Pipe gating checkbox.
Figure 4-66
Checkboxes for enable/disable pipe detection and tracking.
