# Acronyms
- ADC
- Analog-Digital Conversion
- AGC
- Automatic Gain Control
- AWGN
- Additive white Gaussian noise
- API
- Application Programming Interface
- C/A
- Coarse / Acquisition code
- CNR
- Carrier to Noise Ratio
- DLL
- Delay Lock Loop
- DOP
- Dilution of precision
- DSM
- Digital Surface Model
- FPGA
- Field Programmable Gate Array
- GIAT
- GNSS Interference Analysis Tool
- GIM
- Global Ionosphere Maps
- GNSS
- Global Navigation Satellite Systems
- GUI
- Graphical User Interface
- HIL
- Hardware in the Loop
- IF
- Intermediate Frequency
- IONEX
- Ionosphere Map Exchange Format
- ISB
- Inter Signal Bias
- KML
- Keyhole Markup Language
- LLF
- Local Level Frame
- LO
- Local Oscillator
- LOS
- Line of Sight
- LNA
- Low Noise Amplifier
- MCGS
- Multipurpose Cooperative GNSS Service
- NMEA
- National Marine Electronics Association
- OS
- Galileo Open Service
- Probability Density Function
- PLL
- Phase Lock Loop
- PRN
- Pseudorandom Noise
- RF
- Radio Frequency
- RINEX
- Receiver Independent Exchange Format
- RSP
- Received Signal Power
- SCPI
- Standard Commands for Programmable Instruments
- SNR
- Signal to Noise Ratio
- SP3
- Standard Product 3
- TEC
- Total Electronic Content
- TLE
- Two Line Element
- TOE
- Time of Ephemeris
- UTC
- Universal Time Coordinated
- VGA
- Variable Gain Amplifier