A2A	Air-to-air
A2G	Air-to-ground
ADC	Analog-to-digital converter
AGC	Automatic gain control
APNT	Alternative positioning, navigation, and timing
ATM	Air traffic management
BPSK	Binary phase-shift keying
CHP2	Communications and High-Precision Positioning
CNS	Communications, navigation, and surveillance
COTS	Commercial off-the-shelf
DME	Distance measuring equipment
DSP	Digital signal processing
G2G	Ground-to-ground
GNSS	Global Navigation Satellite System
GPS	Global Positioning System
ISNR	Integrated signal-to-noise ratio
LDACS1	L-band Digital Aeronautical Communication System 1
LiDAR	Light detection and ranging
LNA	Low-noise amplifier
LoS	Line of sight
LUT	Lookup table
MIMO	Multiple-input, multiple-output
MSK	Minimum-shift keying
NTP	Network Timing Protocol
OCXO	Oven-controlled crystal oscillator
OSI	Open Systems Interconnection
P-WAM	Passive wide area multilateration
PL	Pseudolite
PNT	Positioning, navigation, and timing
RF	Radio-frequency
RFID	Radio-frequency identification
RFSoC	RF system-on-chip
RTK	Real-time kinematic
SDR	Software-defined radio
SWaP	Size, weight, and power
SWaP-C	Size, weight, power, and cost
ToA	Time-of-arrival
ToF	Time-of-flight
TWR	Two-way ranging
UAM	Urban air mobility
UAV	Unmanned aerial vehicle
UHARS	Ultra High Accuracy Reference System
UHD	USRP Hardware Driver
USRP	Universal Software Radio Peripheral
UWB	Ultra-wideband
V2V	Vehicle-to-vehicle
VOR	VHF omnidirectional range
VTOL	Vertical take-off and landing
WAAS	Wide Area Augmentation System