Electromagnetic Signal Intelligent Identification Based on Radio Frequency Fingerprints

Table 3

Performance comparison of feature engineering methods in LoS and NLoS scenarios.

Method	Channel environment	Recognition accuracy	Signal length
PSD	LoS	96.4%	4096 points
BS	LoS	89.3%	4096 points
ResNet	LoS	96.7%	1024 points
PSD	NLoS	89.1%	4096 points
BS	NLoS	86.9%	4096 points
ResNet	NLoS	92.6%	1024 points