1PPS |
One Pulse Per Second |
2-D or 2D |
Two Dimensional |
3-D or 3D |
Three Dimensional |
|
|
AC |
Alternating Current |
A/D |
Analog-to-Digital |
ADC |
Analog-to-Digital Convertor |
ADR |
Accumulated Doppler Range |
ADR |
Accumulated Delta Range |
AGC |
Automatic Gain Control |
AK |
Authentication Key |
AL |
Alarm Limit |
AltBOC |
Alternate Binary Offset Carrier |
AMSAT |
American Satellite |
APC |
Aircraft Power Conditioner |
ARNS |
Aeronautical Radio Navigation Services |
ARP |
Antenna Reference Point |
AS |
Anti-Spoofing |
ASCII |
American Standard Code for Information Interchange |
ASIC |
Application Specific Integrated Circuits |
AVL |
Automated Vehicle Locations |
|
|
BCD |
Binary Code Decimal |
BDE |
Borland Database Engine |
BDS |
Black Diamond System |
BFS |
Broadband Fiber Source |
BIH |
Bureau l'International de l'Heure |
BIST |
Built-In Self-Test |
BIT |
Built-In Test |
BNR |
Binary Numerical Representation |
BOC |
Binary Offset Carrier |
BPS |
Bits per Second |
BPSK |
Bi-Phase Shift Key |
BSG |
Baseband Signal Generator |
BTS |
Conventional Terrestrial System (BIH defined) |
BW |
Bandwidth |
|
|
C/A Code |
Coarse/Acquisition Code |
CAN |
Controller Area Network |
CASM |
Coherent Adaptive Subcarrier Modulation |
CBIT |
Continuous Built In Test |
cc |
Cubic Centimeters |
CCITT |
Command, Control, and Intelligence Technical Test |
CD |
Clock Drift |
CD |
Compact Disc |
cd |
Change Directory |
CDGPS |
Canada-Wide Differential Global Positioning System |
CDMA |
Code Division Multiple Access |
CDPD |
Cellular Digital Packet Data |
CDU |
Control and Display Unit |
CE |
Conformité Européenna |
CEP |
Circular Error Probable |
CF |
Compact Flash |
CFGP |
Configuration Parameters |
CISPR |
International Special Committee On Radio Interference |
CKSC |
Clock/Status Card |
CL |
Long Code |
CLK |
System Clock |
CM |
Moderate Length Code |
CMG |
Course Made Good |
CMP |
Comparator Message Processor |
CMR |
Compact Measurement Record |
C/No |
Post Correlation Carrier to Noise Ratio in dB-Hz |
CoCom |
Coordinating Committee on Multilateral Export Controls |
COG |
Course Over Ground |
COGO |
Coordinate Geometry |
COSPAS |
Cosmitscheskaja Sistema Poiska Awarinitsch Sudow (Russian: space system for search of vessels in distress) |
CPLD |
Complex Programmable Logic Device |
CPU |
Central Processing Unit |
CR |
Carriage Return |
CRC |
Cyclic Redundancy Check |
CRR |
Common Reference Receiver |
CS |
Commercial Service |
CSIC |
Coordination Scientific Information Center |
CSA |
Canada Shipping Act |
CTP |
Conventional Terrestrial Pole |
CTS |
Clear To Send |
CTS |
Conventional Terrestrial System or Clear To Send |
CW |
Continuous Wave |
|
|
dB |
Decibel |
dBm |
Decibel Relative to 1 milliWatt |
DC |
Direct Current |
DCD |
Data Carrier Detected |
DCE |
Data Communications Equipment (Modem) |
DCO |
Digitally Controlled Oscillator |
DDS |
Direct Digitial Sampling |
DGNSS |
Differential Global Navigation Satellite System |
DGPS |
Differential Global Positioning System |
DHCP |
Dynamic Host Configuration Protocol |
DL |
Data Logger
|
DLL |
Delay Lock Loop |
DoD |
Department of Defence (U.S.) |
DOP |
Dilution Of Precision |
DPB |
Digital Pulse Blanking |
DR |
Dead Reckoning |
DRAM |
Dynamic Random Access Memory |
DRMS |
Distance Root Mean Square |
DSP |
Digital Signal Processor |
DSR |
Data Set Ready |
DTE |
Data Terminal Equipment |
DTR |
Data Terminal Ready |
D/U |
Desired/Undesired |
|
|
e |
Eccentricity |
E-L |
Early to Late |
ECEF |
Earth-Centred-Earth-Fixed |
EDM |
Electronic Distance Measuring (instrument) |
EEPROM |
Electrically Erasable Programmable Read Only Memory |
EGNOS |
European Geo-Stationary Navigation System |
EMC |
Electromagnetic Compatibility |
EMI |
Electromagnetic Immunity |
EP |
Engineering Practice |
ESA |
European Space Agency |
ESD |
Electrostatic Discharge |
ESN |
Electronic Serial Number |
|
|
FAA |
Federal Aviation Administration (FAA) |
FCC |
Federal Communication Commission |
FDA |
Frequency Distribution Amplifier |
FDMA |
Frequency Division Multiple Access |
FEC |
Forward Error Correction |
FEPROM |
Flash Erasable Programmable Read Only Memory |
FIFO |
First In, First Out |
FKP |
Flachen Korrectur Parameter (Plane Correction Parameter) German |
FLL |
Frequency Lock Loop |
FMEA |
Failure Mode Effects Analysis |
FOC |
Full Operational Capability |
FOG |
Fibre Optic Gyro |
FOM |
Figure of Merit |
FPGA |
Field-Programmable Gate Array |
FR |
Factory Reset |
FTP |
File Transfer Protocol |
FTS |
Frequency and Time Standard |
FW |
Firmware |
|
|
GAGAN |
GPS Aided GEO Augmented Navigation (India) |
GaIn |
Galileo Industries |
GCC |
Galileo Control Centre |
GDOP |
Geometric Dilution Of Precision |
GEO |
Geostationary Satellite |
GIC |
GPS Integrity Channel |
GL |
GLONASS (NMEA talker ID) |
GLONASS |
Global Navigation Satellite System |
GM |
Gauss-Markov |
GMS |
Ground Mission Segment |
GMT |
Greenwich Mean Time |
GN |
Combined GPS and GLONASS (NMEA talker ID)
|
GND |
Ground |
GNSS |
Global Navigation Satellite System |
G.P. |
Ground Plane |
GP |
GPS (NMEA talker ID) |
GPAI |
General Purpose Analog Input |
GPS |
Global Positioning System |
GRC |
Galileo Reception Chain |
GRCN |
Galileo Reception Chain Non-PRS |
GSS |
Galileo Sensor Stations |
GSTB |
Galileo System Test Bed |
GTR |
Galileo Test Receiver |
GTS |
Galileo Test Signal Generator |
GUI |
Graphical User Interface |
GUS |
Ground Uplink Station |
GUST |
WAAS GUS-Type 1 |
GUSTR |
WAAS GUS-Type 1 Receiver |
|
|
HDOP |
Horizontal Dilution Of Precision |
hex |
Hexadecimal |
HFOM |
Horizontal Figure of Merit |
HMAC |
Hashed Message Authentication Code |
HP |
High Performance (standard OmniSTAR service) |
HTDOP |
Horizontal position and Time Dilution Of Precision |
Hz |
Hertz |
|
|
I and Q |
In-Phase and Quadrature (Channels) |
I Channel |
In-phase data channel |
IBIT |
Initiated Built In Test |
IC |
Integrated Circuit |
ICAO |
International Civil Aviation Organization |
ICD |
Interface Control Document |
ICP |
Integrated Carrier Phase |
ID |
Identification |
IEC |
International Electrotechnical Commission |
IEEE |
Institute of Electrical & Electronics Engineers |
IERS |
International Earth Rotation Service |
IF |
Intermediate Frequency |
IGP |
Ionospheric Grid Point |
IGRF |
International Geometric Reference Field |
IGS CB |
International GPS Service Central Bureau |
IM |
Intermodulation |
IMLA |
Integrated Multipath Limiting Antenna |
IMO |
International Maritime Organization |
IMU |
Inertial Measuring Unit |
INH |
Inhibit |
INS |
Inertial Navigation System |
I/O |
Input/Output |
IODE |
Issue of Data (Ephemeris) |
IOV |
In-Orbit Validation |
IP |
Internet Protocol |
IRQ |
Interrupt Request |
ISG |
IF Signal Generator |
ISO |
International Standards Organization |
ITRF |
International Terrestrial Reference System |
|
|
JPL |
Jet Propulsion Laboratory (NASA) |
JTAG |
Joint Test Action Group |
|
|
KPA |
Klystron Power Amplifier |
Kb |
Kilobit |
KB |
Kilobyte |
KMF |
Key Management Facility |
|
|
L1 |
The 1575.42 MHz GPS carrier frequency including C/A and P Code |
L2 |
The 1227.60 MHz secondary GPS carrier frequency (P Code only) |
L2C |
The L2 civilian code transmitted at the L2 frequency (1227.6 MHz) |
L5 |
3rd civil GPS frequency that tracks at low signal-to-noise ratios (1176.45 MHz) |
LAAS |
Local Area Augmentation System |
|
LCD |
Liquid Crystal Display |
LED |
Light-Emitting Diode |
LF |
Line Feed |
LGF |
LAAS Ground Facility |
LHCP |
Left Hand Circular Polarization |
LME |
Line Maintenance Equipment |
LNA |
Low Noise Amplifier |
LO |
Local Oscillator |
LRU |
Line Replacement Unit |
LSB |
Least significant bit |
LVTTL |
Low Voltage Transistor Transistor Logic |
|
|
MAC |
Media Access Control (Ethernet) |
MAT |
Multipath Assessment Tool |
Mb |
Megabit |
MB |
Megabyte |
MEDLL® |
Multipath Estimation Delay Lock Loop |
MEO |
Medium Earth Orbit |
MET |
Multipath Elimination Technology |
MET |
Meteorological |
MGRS |
Military Grid Reference Systems |
MHz |
MegaHertz |
MIB |
Management Information Base |
MIL |
Military |
MINOS |
Multiple Independent NOmadic Stargazer |
MKI |
Mark Input |
MKMF |
Mission Key Management Facility |
MMCX |
Multimedia Communications Exchange (Lucent) |
MMT |
Multipath Mitigation Technology |
MOPS |
Minimum Operational Performance Standard |
MP |
Messag Processor |
MPC |
Modulated Precision Clock |
MPM |
Multipath Meter |
ms |
Millisecond |
MSAS |
MTSAT Satellite Based Augmentation System |
MSAT |
Mobile Satellite |
MSB |
Most significant bit |
MSL |
Mean sea level |
MSR |
Measure Output |
MTBF |
Mean Time Between Failures |
MTSAT |
Multi-Functional Transport Satellite |
|
|
N/A |
Not Applicable |
NAS |
National Airspace System (United States) |
NASA |
National Aeronautics and Space Administration (U.S.) |
NTS |
National Topographic Series (Canada) |
NAV |
RINEX Ephemeris File |
NAVSTAR |
NAVigation Satellite Timing And Ranging (synonymous with GPS) |
N/C or NC |
Not Connected |
NCC |
Network Control Center |
NCO |
Numerically Controlled Oscillator |
ND |
Navigation Data |
NH |
Neumann-Hoffman |
NMEA |
National Marine Electronics Association |
N. mi. |
Nautical mile |
NOC |
Network Operations Center |
ns |
Nanosecond |
NVM |
Non-Volatile Memory |
|
|
OBS |
RINEX Observation File |
OCXO |
Oven Controlled Crystal Oscillator |
OEM |
Original Equipment Manufacturer |
OP |
Operational Parameters |
OS |
Open Service |
|
|
PAC |
Pulsed Aperture Correlator |
PC |
Personal Computer |
PC |
Phase Centre |
P-Code |
Precise Code |
PBIT |
Power-Up Built-In Test |
PCB |
Printed Circuit Board |
PCMCIA |
Personal Computer Memory Card International Association |
PDC |
Power and Data Card |
PDF |
Power Distribution Function |
PDF |
Portable Document File |
PDOP |
Position Dilution Of Precision |
PE-90 |
Parameters of the Earth 1990 (see PZ90) |
PIN |
Position Indicator |
PLL |
Phase Lock Loop |
PPM |
Parts Per Million |
PPP |
Point to Point Protocol |
PPS |
Precise Positioning Service or Pulse Per Second |
PRN# |
PseudoRandom Noise number |
PRS |
Public Regulated Service |
PSN |
Part Serial Number |
PSR |
Pseudorange |
PV |
Position Valid |
PVT |
Position Velocity Time |
PZ90 |
Parametry Zemli 1990 (see PE-90) |
|
|
Q Channel |
Quadrature data-free channel |
|
|
RAM |
Random Access Memory |
RAS |
Remote Access Service |
RCC |
Rescue Co-ordination Centre |
RF |
Radio Frequency |
RFDC |
Radio Frequency Direct Current |
RFU |
Radio Frequency Uplink |
RHCP |
Right Hand Circular Polarization |
RI |
Ring Indicator |
RINEX |
Receiver Independent Exchange Format |
RLG |
Ring Laser Gyro |
RoHS |
Restriction of the use of Hazardous Substances |
RM |
Raw Measurements |
ROM |
Read Only Memory |
RMA |
Return Material Authorization |
RMS |
Root Mean Square |
RSS |
Residual Solution Status |
RTC |
Real-Time Clock |
RTCA |
Radio Technical Commission for Aviation Services |
RTCM |
Radio Technical Commission for Maritime Services |
RTCMV3 |
RTCM Version 3.0 |
RTK |
Real Time Kinematic |
RTS |
Request To Send |
RXD |
Received Data |
|
|
SA |
SMART ANTENNA |
SA |
Selective Availability |
SAE |
Society of Automotive Engineers |
SAR |
Search and Rescue |
SARSAT |
Search and Rescue Satellite Aided Tracking |
SBAS |
Satellite Based Augmentation System |
SC |
Safety Computer |
SCAT-I |
Special Category I |
SD |
Standard Deviation |
SEP |
Spherical Error Probable |
SG |
Signal Generator |
SGS-90 |
Soviet Geodetic System 1990 |
SI |
Système Internationale |
SigGen |
WAAS GUS Type-1 Signal Generator |
SiS |
Signal in Space |
SLIP |
Serial Line Internet Protocol |
SNAS |
Satellite Navigation Augmentation System (China) |
SNR |
Signal-to-Noise Ratio |
SOL |
Safety-of-Life |
SPS |
Standard Position Service |
sps |
Symbols Per Second |
SPAN™ |
Synchronized Position Attitude Navigation |
SQM |
Signal Quality Monitoring |
SRAM |
Static Random Access Memory |
SS II |
SUPERSTAR II |
SU |
(former) Soviet Union (now Russia) |
SV |
Space Vehicle |
SVID |
Space Vehicle Identifier |
SVN |
Space Vehicle Number |
SW |
Software |
SWRU |
Software Replacement Unit |
|
|
TCP |
Transmission Control Protocol |
TCXO |
Temperature Compensated Crystal Oscillator |
TDOP |
Time Dilution Of Precision |
TES |
Time Estimator Status |
TIL |
Time Integrity Limit |
TNM |
Telecommunications Network Management |
TOA |
Time of Almanac |
TOE |
Time of Ephemeris |
TOW |
Time of Week |
TRAIM |
Time Receiver Autonomous Integrity Monitor |
TTFF |
Time-To-First-Fix |
TTL |
Transistor-Transistor Logic |
TTNL |
Time to Narrow Lane |
TVS |
Transient Voltage Suppressor |
TXD |
Transmitted Data |
|
|
UART |
Universal Asynchronous Receiver Transmitter |
UDP |
User Datagram Protocol |
UDRE |
User Differential Range Error |
UHF |
Ultra High Frequency |
USB |
Universal Serial Bus |
USGS |
United States Geological Survey |
UTC |
Coordinated Universal Time |
UTC(SU) |
Coordinated Universal Time (former Soviet Union, now Russia |
|
|
V AC |
Volts Alternating Current |
V DC |
Volts Direct Current |
VARF |
Variable Frequency |
VBS |
Virtual Base Station (standard OmniSTAR service) |
VCTCXO |
Voltage Controlled Temperature Compensated Crystal Oscillator |
VDOP |
Vertical Dilution of Precision |
VFD |
Vacuum Fluorescent Display |
VFOM |
Vertical Figure of Merit |
VSWR |
Voltage Standing Wave Ratio |
|
|
WAAS |
Wide Area Augmentation System |
WAAS G-II |
WAAS Reference Receiver: G-II |
WADGPS |
Wide Area DGPS |
WEEE |
Waste Electrical and Electronic Equipment |
WGS |
World Geodetic System |
WHQL |
Windows Hardware Quality Lab (Microsoft) |
WMP |
WAAS Message Processor |
WNA |
Week number of almanac |
WPT |
Waypoint |
|
|
XP |
Extra Performance (standard OmniSTAR service) |
XTE |
Crosstrack Error |
|
|
ZUPT |
Zero Velocity Update |
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