Appendix B: Glossary

AMTI: Airborne moving target indication
APU: Auxiliary power unit
A Scope: A type of radar display that shows signal amplitude vs. time
AWACS: Airborne Warning and Control System
CCM: Counter-countermeasure
CFAR: Constant-false-alarm rate
Chirp: Term for linear FM
CM: Countermeasure
CR: Clutter cancellation ratio; chaff cancellation ratio (both normally greater than unity)
CRT: Cathode-ray tube
CW: Continuous wave
dB: Decibel
dBi: Decibel relative to isotropic gain
dBsm: Decibel relative to a square meter
dBW: Decibel relative to a watt
Doppler: Frequency shift in the reflected signal due to target radial velocity
DPCA: Displaced phase center array
ECCM: Electronic CCM
ECM: Electronic CM
erf: Error function
ERP: Effective radiated power, usually of a jammer
ESJ: Escort jammer
FFOV: Full-field-of view (phased array)
FFT: Fast Fourier transform
FM: Frequency modulation
FMCW: Frequency-modulated continuous wave
FOV: Field-of-view
GDOP: Geometric dilution of precision
GHz: Gigahertz
GMTI: Ground moving target indication
HF: High frequency
Hz: Hertz
IF: Intermediate frequency
ISAR: Inverse synthetic aperture radar
ITU: International Telecommunication Union
J/N: Jammer-to-noise ratio
JSTARS: Joint Surveillance and Target Attack Radar
kHz: Kilohertz
km: Kilometer
km/s: Kilometers per second
LFOV: Limited-field-of-view (phased array)
ln: Natural logarithm
LOS: Line-of-sight
m: Meter
m/s: Meters per second
MDV: Minimum detectable velocity
MHz: Megahertz
mks: Meter, kilogram, second measurement system (SI)
mR: Milliradian (used in custom radar functions)
MLJ: Mainlobe jammer
mrad: Milliradian
ms: Millisecond
msine: Millisine
MTI: Moving target indication
OTH: Over-the-horizon
PC: Pulse-compression ratio
PDF: Probability density function
PPI: Plan position indicator display
PRI: Pulse repetition interval
rad: Radian
RCS

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Radar System Performance Modeling, Second Edition

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