Specific Emitter Identification with Limited Labelled Signals Based on Variational Autoencoder Embedded in Information-Maximising Generative Adversarial Network and Gradient Penalty

Table 2

Mean ROC AUC at different SNRs.

SNR	Our method	MAML
0 dB	0.924	0.871
4 dB	0.939	0.898
8 dB	0.947	0.911
12 dB	0.958	0.928
16 dB	0.961	0.935
20 dB	0.972	0.941