Glossary
Gemini 720is Imaging Sonar
Document: 0703-SOM-00002, Issue: 7
92
© Tritech International Ltd.
Multibeam
A sonar which forms multiple "beams" of sound so it can update in real
time and does not have to perform a full scan like a traditional sonar.
PC
Personal Computer
PNG
The standard filename extension for Portable Network Graphics - a
bitmapped image format employing lossless compression.
PSU
Power Supply Unit
RAM
Random Access Memory
RAT
Remote Access Terminal - the detachable front part of the Tritech
Surface Control Unit (SCU) computer. Provides an alternative to using
a keyboard and mouse.
RJ45
Registered Jack wiring scheme commonly used to refer to
the 8 position 8 contact (8P8C) connector wired for Ethernet
communications.
RLE
Run-length Encoding - a form of data compression in which sequences
of data that have the same value are stored as a single datum point
and count.
ROV
Remotely Operated Vehicle
RS232
Traditional name for a series of standards for serial binary data control
signals.
RX
Receive (data)
SCU
Surface Control Unit - a specially manufactured computer which is
rack mountable and capable of processing the data from the sonar
equipment running either Windows® XP Embedded or Windows® 7
and Seanet Pro or Gemini software.
Seanet Pro
The software supplied by
Tritech International Ltd
which is capable of
running all the sonar devices.
TX
Transmit (data)
USBL
Ultra Short Base Line (positioning system)
UTC
Coordinated Universal Time (time data closely related to Greenwich
Mean Time (GMT)).
VDSL
Very-high-bitrate Digital Subscriber Line - a method of communicating
down un-twisted copper cable at uplink speeds of 18Mbit·s
-1
and
downlink speeds of 50Mbit·s
-1
.
VOS
Velocity of Sound
WMV
Windows® Media Video - a compression format for several proprietary
codecs developed by Microsoft® for storing video files.
