288
N
NMEA-0183
Ntrip
O, P, Q,
R
RINEX
RTCM SC-104
S
Selective Availability (SA)
Signal-to-noise ratio (SNR)
SMTP
T
Time Zone
U
UTC (Coordinated Universal Time)
UT1
V,
W
WGS84
Wide Area Augmentation System (WAAS)
World Geodetic System 1984 (WGS 84)
X, Y, Z
Almanac
A set of parameters included in the GPS satellite navigation message that a receiver uses to predict the approximate location of a
satellite. The almanac contains information about all of the satellites in the constellation.
Antenna Reference Point (ARP)
The Antenna Reference Point of an antenna is defined as the intersection of the BPA (Bottom of Pre-Amplifier) horizontal plane and
the vertical symmetry axis of the antenna.
Phase center offsets are expressed in relation to the ARP.
Related topics
GNSS Management: Calculate the antenna height reading
Anti spoofing (AS)
The process of encrypting the P-code by modulo-2 addition of the P-code and a secret encryption W-code. The resulting code is called
the Y-code. AS prevents an encryption-keyed GPS receiver from being "spoofed" by a bogus, enemy-generated GPS P-code signal.
BINEX
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