Simrad ARGUS FMCW 3G, User Manual

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Tracking | Argus Radar Operator Manual
Manual Trial Manoeuvre scenario - After the execution
AIS and radar target association
The system can visualize up to 100 radar tracked targets and 300 AIS targets (depending on
the category, these limits could be different, see table on page 15).
It is possible to merge a radar target and an AIS target retaining the same ship, in order to:
• reduce an excessive number of symbols and targets presentation, that could result in some
dangerous confusion, and...
• compensate for a possible failure if one of the two targets (for instance, if the radar tracked
target falls behind an island, the system keeps on tracking and visualizing the AIS target).
This facility is called AIS/radar target association.
In practice, when an echo with its AIS symbol on top is being acquired for tracking, the sys-
tem can detect that the two symbols represent the same target. The symbol displayed after
the association is only the AIS one, but the radar tracked target continues to be analyzed by
the tracking program as well.
Only by means of the selection of the target it is possible to determinate if its merged with a
radar target.
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Note: The AIS is used during target association to help the tracking process in identifying
possible dangerous situations like target swap, manoeuvre and to provide a stable source of
position when the echo is fading from scan to scan.
The option to merge the two tracks can be selected by the operator, pressing the button “AIS/
TT Association” in the “Tracking menu” on page 101, the “Tracking Data Association Menu”
will be displayed.
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Note: The AIS/TT Association is visible only if the AIS functionality is enabled.