Glossary
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GNSS Global Navigational Satellite System
GPL General Public License
GPL General Public License, software license, which guarantees
individuals, organizations and companies the freedom to use,
study, share (copy), and modify the software.
GPS Global Positioning System. A system of satellites, computers,
and receivers that is able to determine the latitude and
longitude of a receiver on Earth by calculating the time
difference for signals from different satellites to reach the
receiver.
H
HDT HeaDing True
I
IEC International Electrotechnical Commission. The international
standards and conformity assessment body for all fields of
electrotechnology.
IMO International Maritime Organization
INS Integrated Navigation System
IP Ingress Protection. An international classification system for
the sealing effectiveness of enclosures of electrical equipment
against the intrusion into the equipment of foreign bodies (i.e.
tools, dust, fingers) and moisture. This classification system
uses the letters "IP" followed by two or three digits. An "x" is
used for one of the digits if there is only one class of protection;
e.g. IPX4 which addresses moisture resistance only.
L
LAN Local Area Network
LGPL Lesser General Public License
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