ME	Magnetoelectric
IMU	Inertial measurement unit
SNR	Signal-to-noise ratio
OPM	Optically pumped magnetometer
SQUID	Superconducting quantum interference device
DC	Direct current
AC	Alternating current
VLF	Very low frequency
TDMA	Time division multiple access
CDMA	Code division multiple access
FDMA	Frequency division multiple access
RMS	Root mean square
ASD	Amplitude spectral density
MF	Matched filter