NavCom SF-2050 Rev.D - Manual (Page 55)

SF-2050 User Guide - Rev. D
civilian code see Coarse Acquisition code .
Coarse Acquisition code (C/A or
Civilian code )
the pseudo-random code generated by GPS satellites. It
is intended for civilian use and the accuracy of readings
using this code can be degraded if
selective availability
( S/A ) is introduced by the US Department of Defense.
COM# shortened form of the word Communications.
Indicated a data communications port to/from the
GPS
sensor to a controller or data collection device.
controller a device consisting of hardware and software
used to communicate and manipulate the I/O functions
of the
GPS sensor.
Compact Measurement Record (CMR) a standard
format for
DGPS corrections used to transmit
corrections from a reference station to rover sensors.
data files files that contain Proprietary,
GPS , NMEA,
RTCM, or any type of data logged from a GPS receiver.
DB9P a type of electrical connector containing 9
contacts. The P indicates a plug pin (male).
DB9S a type of electrical connector containing 9
contacts. The S indicates a slot pin (female).
DGPS see
Differential GPS .
Differential
GPS ( DGPS ) a positioning procedure that
uses two receivers, a rover at an unknown location and
a reference s ation at a known, fixed location. The
reference station computes corrections based on the
actual and observed ranges to the satellites being
tracked. The coordinates of the unknown location can
be computed with sub-meter level precision by
t
Glossary-53