Digitisation - Gemini 620pd Profiling Product Manual

Gemini Software Operation

12.4.9. Digitisation

It is possible to configure the display to show the Sonar Image, Targets and
Gates. When the Sonar Image is turned off (when the button is "on" it has
a blue background) and the Targets option selected the display will only show
the digitised return points (i.e., extraneous detections will be filtered out and not
displayed).
If the depth of the terrain to be profiled is known to lie between two ranges then the
range gates can be set and displayed by selecting the Gates button. The gates can
be set either using a Range value or Depth value.
The network data output format will be determined by the survey software which is
running on the network computer and for most cases Tritech will be the correct
choice. If using survey software that does not have a Tritech specific configuration
available then it is possible to emulate a Reson R-Theta or RI-Theta format. For more
details of integration of the Tritech Gemini software with survey applications please
refer to Chapter 3, Integrating with Survey Software.
0695-SOM-00001, Issue: 03
Depth Gating
Note
The gates are always in use for target detection (i.e., targets will not
be displayed outside these gates). For targets and gates, the Display
button only affect the displaying of the data, however, to reduce network
bandwidth, the button for Sonar Image enables or inhibits the data
transmission. If the sonar image data is inhibited during logging it will
not be available for playback.
only points enclosed
by the gates are used
52
Gemini Profiling System
Range Gating
© Tritech International Ltd.