ALL	artificial lateral line
AUV	autonomous underwater vehicle
CNN	convolutional neural network
CWT	continuous wavelet transform
DFT	discrete Fourier transform
ELM	extreme learning machine
ESN	echo state network
GN	Gauss–Newton
KNN	k-nearest neighbours
LCMV	linear constraint minimum variance
LSQ	least square curve fit
MAE	mean absolute error
MSE	mean squared error
MLP	multi-layer perceptron
NR	Newton–Raphson
OS-ELM	online sequential extreme learning machine
QM	quadrature method
RND	random
SLFN	single layer feed-forward network
SNR	signal to noise ratio