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GSR2600
Appendix B
Glossary
measurement, and multiplying by the speed of light. This
measurement generally contains a large receiver clock offset
error.
Pseudorange Measurements -
Measurements made using one
of the pseudorandom codes on the GPS signals. They provide an
unambiguous measure of the range to the satellite including the
effect of the satellite and user clock biases.
Raw data -
GPS data which has not been processed or
differentially corrected.
Recording interval -
The time interval between the recording of
GPS raw data to the GPS receiver memory. For example, a
recording interval of 10 seconds indicates GPS raw data will be
stored to the GPS receiver memory once every 10 seconds.
Reference Station -
The GPS receiver which is acting as the
stationary reference. It has a known position and transmits
messages for the "remote" receiver to use to calculate its
position.
Remote Receiver -
The GPS receiver that does not know its
position and needs to receive measurements from a reference
station to calculate differential GPS positions.
Residual -
In the context of measurement, the residual is the
misclosure between the calculated measurements, using the
position solution and actual measurements.
RINEX -
Receiver INdependent EXchange format. A set of
standard definitions and formats to promote the free exchange
of GPS data and facilitate the use of data from any GPS receiver
with any software package. The format includes definitions for
three fundamental GPS observables: time, phase and range. A
complete description of the RINEX format is found in the
Commission VIII International Coordination of Space
Techniques for Geodesy and Geodynamics "GPSBULLETIN"
May-June, 1989.
Root-Mean-Square (RMS) -
A statistical measure of the scatter
of computed positions about a "best fit" position solution. RMS
can be applied to any random variable.
Rover -
The GPS receiver that moves from site to site during a
kinematics GPS survey.
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