APQEC	Automatic PQ Events Classifier
BM	Buffer Manager
CB	Circular Buffer
CCU	Central Classification Unit
CNN	Convolutional Neural Network
EMD	Empirical Mode Decomposition
FFT	Fast Fourier Transform
FIFO	First in First out
HHT	Huanh–Hilbert Transform
IMF	Intrinsic Mode Function
LDN	Locally Distributed Node
PQ	Power Quality
SAW	Sliding Analysis Window
SNR	Signal-to-Noise Ratio
STFT	Short Time Fourier Transform