AdaBoost	Adaptive boosting
ADr	Amateur drone
AI	Artificial intelligence
AP	Average precision
BiLSTM	Bidirectional long short-term memory
BRF	Balanced random forest
CW	Continuous wave
CLSTM	Convolutional long-short term memory
CNN	Convolutional neural network
COCO	Common objects in context
CRNN	Convolutional recurrent neural network
CSV	Comma-separated value
DETR	Detection transformer
DIY	Do-it-yourself
DFD	Doppler frequency difference
DFT	Discrete Fourier transform
DMR	Doppler magnitude ratio
DNN	Deep neural network
FMCW	Frequency-modulated continuous wave
FDR	False discovery rate
FNR	False negative rate
GAN	Generative adversarial network
GPS	Global Positioning System
GTCC	Gammatone cepstral coefficients
GRU	Gated recurrent unit
HERM	Helicopter rotor modulation
ISM	Industrial, Scientific, and Medical
IoU	Intersection over union
IEEE	Institute of Electrical and Electronics Engineers
KNN	k-nearest neighbors
LoS	Line-of-sight
LSTM	Long short-term memory
LSTM-ALRO	Long short-term memory-adaptive learning rate optimizing
LPC	Linear prediction coefficients
LPCC	Linear predictive cepstral coefficients
MAC	Medium access control
mAP	Mean average precision
mmWave	Millimeter-wave
MFCC	Mel-frequency cepstral coefficients
MLP	Multilayer perceptron
PCA	Principal component analysis
PTZ	pan, tilt, zoom
PSD	Power spectral density
RADAR	Radio detection and ranging
RBFN	Radial basis function network
ResNet	Residual networks
RF	Radio frequency
RCS	Radar cross section
R-CNN	Region-based convolutional neural network
RMS	Root mean square
RNN	Recurrent neural network
ROC	Receiver–operator characteristic
STFT	Short-time Fourier transform
SFCW	Stepped frequency continuous wave
SMOTE	Synthetic minority oversampling technique
SRO	Spectral roll-off
SSD	Single shot detector
SVM	Support vector machine
TFMS-CNN	Time–frequency multiscale convolutional neural networks
TE	Transformer encoder
UAV	Unmanned aerial vehicle
VGG	Visual geometry group
VTOL	Vertical take-off and landing
XGBoost	eXtreme gradient boosting
YOLO	You look only once
ZCR	Zero-crossing rate
ZCC	Zero-centered compression