HFSWR	High Frequency Surface Wave Radar
FFT	Fast Fourier Transform
OTHR	Over The Horizon Radar
EEZ	Exclusive Economic Zone
DoA	Direction of Arrival
MUSIC	Multiple Signal Classification
A/D	Analog to Digital
AIS	Automatic Identification System
HR	High Resolution
RF	Radio Frequency
MMSI	Maritime Mobile Service Identity
RD	Range–Doppler