C-Nav 2050M, User Manual

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C-Nav2050 User Guide
of rotation and the point of interest. Often abbreviated
as Lon.
Mean Sea Level (MSL) is a vertical surface that
0°.
es
t. Where YY indicates
d. A
calculated and
a
led
aths
electrical lengths.
f data)
ivers on L1 and
represents sea level.
Meridian one of the lines joining the north and south
poles at right angles to the equator, designated by
degrees of longitude, from 0° at Greenwich to 18
Meteorological (.YYm) files one of the three file typ
that make up the RINEX file forma
the last two digits of the year the data was collecte
meteorological file contains atmospheric information.
Monitor Station is one of five worldwide stations
maintained by the DoD and used in the GPS control
segment to monitor and control satellite clock and
orbital parameters. Corrections are
uploaded to each satellite at least once per day. See
Control Segment.
Multipath is a phenomenon whereby GPS signals from
a satellite arrive at an antenna having traversed
different paths. The signal traversing the longer path
may have been reflected off one or more objects—the
ground, a vehicle, boat, building or some other
surface—and once received by the antenna, will yield
larger pseudo-range estimate and increase the error.
Multipath Error is a positioning error resulting from
interference between radio waves that has trave
between the transmitter and the receiver by two p
of different
Navigation Code uses the two GPS carrier waves and
operates on a very low frequency (about 50Hz). This
code communicates the GPS message (a string o
from the GPS satellites to the GPS rece
L2 carrier waves.
G-18