NavCom SF-3040 Rev.F - Manual (Page 214)

SF-3040 Product User Guide
– Rev. F
Glossary-212
ranges from the receiver to at least four GPS
satellites. Geometrically, there can only be one point
in space, which is the correct distance from each of
four known points.
RCP a NavCom Technology, Inc. proprietary
processing technique in which carrier phase
measurements, free of Ionospheric and Troposphere
effects are used for navigation.
Real-Time Kinematic (RTK) a GPS system that
yields very accurate 3D position fixes immediately in
real-time. The base station transmits its GPS position
to roving receivers as the receiver generates them,
and the roving receivers use the base station
readings to differentially correct their own positions.
Accuracies of a few centimeters in all three
dimensions are possible. RTK requires dual
frequency GPS receivers and high speed radio
modems.
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
positions recorded at the same time by roving
receivers which are relatively close to the reference
station. A reference station is used to improve the
quality and accuracy of GPS data collected by roving
receivers.
RHCP Right Hand Circular Polarization used to
discriminate satellite signals. GPS signals are RHCP.
RINEX (Receiver Independent Exchange) is a file
set of standard definitions and formats designed to be
receiver or software manufacturer independent and to
promote the free exchange of GPS data. The RINEX
file format consists of separate files, the three most
commonly used are:
the observation (.YYo) file,