ADAS	Advanced driver-assistance system
BRDF	Bidirectional reflectance distribution function
CIE	International Commission on Illumination
DFT	Discrete Fourier transform
DR	Detection rate
DSD	Drop size distribution
FDR	False detection rate
FMU	Functional mock-up unit
FMI	Functional mock-up interface
FoV	Field of view
IDFT	Inverse discrete Fourier transform
KPIs	Key performance indicators
MAPE	Mean absolute percentage error
MPE	Maximum permissible error
NIED	National Research Institute for Earth Science and Disaster Prevention
OSI	Open simulation interface
OOI	Object of interest
RADAR	Radio detection and ranging
RTDT	Round-trip delay time
SNR	Signal-to-noise ratio
TDS	Time domain signals