Sokkia GSR2700 ISX, Руководство по эксплуатации

Страница: 91 / 106

GSR2700 ISX Operations Manual 81
Glossary
A
Ambiguity—
The unknown integer number of cycles of the
reconstructed carrier phase. The carrier phase ambiguity is inherent
in an unbroken set of measurements from a single satellite pass at a
single receiver. Also known as integer ambiguity and integer bias.
Antenna—
The antenna is the component of a GNSS system that
collects the analog signal from the GNSS satellite and sends this
signal to the GNSS receiver for processing.
B
Base station—
In differential positioning, a base station is the end of
the baseline that is assumed known and its position fixed. It is the
GNSS receiver, which is acting as the stationary reference. It has a
known position and transmits messages for the rover receiver, which
uses the information to calculate its position. Sometimes referred to
as a reference station.
Bluetooth—
Wireless personal area network (PAN) standard that
permits data connections between electronic devices such as desktop
computers, wireless phones, electronic organizers, and printers in the
2.4 GHz range. Bluetooth depends on mobile devices being equipped
with a chip for sending and receiving information.
C
C/A Code—
The Coarse Acquisition (or Clear Access) code
modulated onto the GPS L1 signal.
Carrier phase—
The phase of either the L1 or L2 carrier of a GPS
signal, measured by a receiver while locked onto the signal (also
known as integrated Doppler).
Circular Error Probable (CEP)—
The radius of a circle, centered at
your true location, that contains 50% of the individual position
measurements made.