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. 2021 Mar 10;21(6):1947. doi: 10.3390/s21061947
UAVs Unmanned Aerial Vehicles
RF Radio Frequency
LiDaR Light Detection and Ranging
RADAR RAdio Detection And Ranging
LoS Line-of-Sight
CNN Convolutional Neural Network
ANN Artificial Neural Network
NN Neural Network
XGBoost eXtreme Gradient Boosting
RNN Recurrent Neural Network
CRNN Convolutional Recurrent Neural Network
TCT Target Candidates Track
ADr Amateur Drone
MFCC Mel Frequency Cepstral Coefficients
SVMs Support Vector Machines
MLE Maximum Likelihood Estimation
NLoS Non-Line of Sight
NCA Neighborhood Component Analysis
DNNs Deep Neural Networks
DFT Discrete Fourier transform
D-STFT Discrete-Short Time Fourier Transform
GMM Gaussian Mixture Model
KNN K Nearest Neighbour
ISM Industrial, Scientific, and Medical
FIR Finite Impulse Response
FNR False Negative Rate
FDR False Discovery Rate
FFT Fast Fourier Transform
MSE Mean Square Error
MAE Maximum Absolute Error
DL Deep Learning
DA Discriminant Analysis
FPR False Positive Rate
TPR True Positive Rate
ROC Receiver Operating Characteristic
AUC Area Under ROC Curve