LPI	Low Probability of Intercept
LFM	Linear Frequency Modulation
FM	Frequency Modulation
ENN	Elman Neural Network
BPSK	Binary Phase Shift Keying
FMCW	Frequency Modulated Continuous Wave
CWD	Choi–Williams Time-Frequency Distribution
PSK	Phase Shift Keying
FSK	Frequency Shift Keying
PCA	Principal Component Analysis
RSR	Ratio of Successful Recognition
SNR	Signal-to-Noise Ratio
EW	Electronic Warfare
STFT	Short-Time Fourier Transform
WVD	Wigner–Ville Distribution
PWD	Pseudo–Wigner Distribution
RD	Rihaczek Distribution
HT	Hough Transform
AWGN	Additive White Gaussian Noise
PSD	Power Spectral Density