Glossary - JRC JMA-2353 Instruction Manual

GLOSSARY

This section describes the main terms used for this equipment and general related
maritime terms.
AZ
Activated target
AIS
Anti-clutter rain
Anti-clutter sea
AZI
BCR/BCT
C up
CCRP
Clutter
COG
CORREL
CPA/TCPA
CTW
DRIFT
Acquisition/Activation zone
A zone set up by the operator in which the system should automatically acquire radar
targets and activate reported AIS targets when entering the zone.
A target representing the automatic or manual activation of a sleeping target for the
display of additional information.
Automatic Identification System
A system which enables ships and shore stations to obtain identifying and navigation
information about other ships at sea, using an automated transponder.
Rain/snow clutter suppression.
Sea clutter suppression.
AZImuth stabilization mode
Bow Crossing Range and Bow Crossing Time
Course up
Own ship's course is pointed to the top center of the radar display.
The Consistent Common Reference Point
A location on own ship, to which all horizontal measurements such as target range,
bearing, relative course, relative speed, CPA or TCPA are referenced, typically the
conning position of the bridge.
Unwanted reflections on a radar screen, from sea surface, rain or snow.
Course Over Ground
The direction of the ship's movement relative to the earth, measured on board the ship,
expressed in angular units from true north
Correlation
The distance to the Closest Point of Approach and Time to the Closest Point of
Approach. Limits are set by the operator and are related to own ship.
Course Through Water
The direction of the ship's movement through the water
The current velocity for manual correction or the current speed on the horizontal axis of
the 2-axis log is displayed.
A
B
C
D
GLOSSARY
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