NavCom SF-3050 Rev.A - Manual (Page 164)

SF-3050 User Guide – Rev A
Glossary-162
Precise code see P-code.
PRN (Uppercase) typically indicates a GPS satellite
number sequence from 1 – 32.
andom Noise.
e.
nd
vCom
e randomly distributed but can be exactly
ir
ation’s antenna to a satellite, calculated
ty,
waived. The Quick Start (user input) position should
til
In this scenario,
y take longer than the typical startup
prn (Lower Case) see Pseudor
Protected code see P-cod
Proprietary commands those messages sent to a
received from GPS equipment produced by Na
Technology, Inc. own copyrighted binary language.
pseudo-random noise (prn) a sequence of data that
appears to b
reproduced. Each GPS satellite transmits a unique
PRN in its signals. GPS receivers use PRNs to
identify and lock onto satellites and to compute the
pseudoranges.
Pseudorange the apparent distance from the
reference st
by multiplying the time the signal takes to reach the
antenna by the speed of light (radio waves travel at
the speed of light). The actual distance, or range, is
not exactly the same because various factors cause
errors in the measurement.
PVT GNSS information depicting Position, Veloci
Time in the NCT proprietary message format.
Quick Start (StarFire) a startup mode that allows
instant signals, allowing the convergence period to be
have an accuracy of better maximum results. Any error in the user input position
will bias the StarFire position error accordingly, un
convergence can correct the bias.
convergence ma
convergence period.
QZSS Quasi Zenith Satellite System.