C-Nav 2050M, Руководство пользователя

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C-Nav2050 User Guide
Observation (.YYo) file,
Navigation (.YYn) file,
Meteorological (.YYm) files;
Where YY indicates the last two digits of the year the
data was collected.
Reference station a reference station collects GPS
data for a fixed, known location. Some of the errors in
the GPS positions for this location can be applied to
rs
reference station. A
hem will be within the
er
n
ck
a SBAS such as C-Nav.
positions recorded at the same time by roving receive
which are relatively close to the
reference station is used to improve the quality and
accuracy of GPS data collected by roving receivers.
Right Hand Circular Polarization (RHCP) is used to
discriminate satellite signals. GPS signals are RHCP.
Root Mean Square (RMS) is a measurement of
precision also applicable for horizontal stations.
Probability for RMS is 68.3%, meaning that if 100
observations are made, 68 of t
root mean square, 1 standard deviation.
Rover is any mobile GPS receiver and field comput
collecting data in the field. A roving receiver’s positio
can be differentially corrected relative to a stationary
reference GPS receiver or by using GPS orbit and clo
corrections from
Roving Receiver see rover
Satellite Based Augmentation System (SBAS) this is
a more general term, which encompasses WAAS, C-
Nav and EGNOS type corrections.
Satellite Constellation is the arrangement of a set of
satellites in space.
Satellite Message is sometimes referred to as the Data
(D) code. A low-frequency (50 Hz) stream of data on
G-23