Leica mojo 3D, Руководство пользователя

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Leica mojo3D, Glossary of Terms
tude is 0° at Greenwich and is measured either east-
ward through 360° or eastward 180° and westward
180°.
NMEA
N
ational M arine E lectronics A ssociation.
NMEA 0183
NMEA 0183 is a combined electrical and data specifi-
cation for communication between marine electronic
devices such as echo sounder, sonars, anemometer
(wind speed and direction), gyrocompass, autopilot,
GPS receivers and many other types of instruments.
NTrip
N etworked Tr ansport of RTCM via I nternet P rotocol.
Post processing
The process of computing positions in non-real-time,
using data previously collected by GPS receivers.
RMS
R
oot M ean S quared, the root mean square is known
as the quadratic mean and is a statistical measure of
the magnitude of a varying quantity.
RTCM
R
adio T echnical C ommission for M aritime Services.
RTCM3 is an RTK correction protocol.
RTK
R
eal T ime K inematic. A term used to describe the
procedure of resolving the phase ambiguity at the
GPS receiver, so that the need for post-processing is
removed.
SBAS
S
atellite B ased A ugmentation S ystem. SBAS
comprises a number of ground stations at surveyed
points. The ground stations take measurements of
GPS satellites, their signals, and environmental
factors that may affect the signals received by users,
and create adjustment messages to send to one or
more satellites for broadcast to users.