Identification of Shortwave Radio Communication Behavior Based on Autocorrelation Spectrogram Features

Table 1

The connection between burst waveforms and behaviors.

Physical layer signal	Behavioral meaning
BW0 burst waveform	Automatic link establishment
BW1 burst waveform	Traffic management and HDL acknowledgment
BW2 burst waveform	Transfers of traffic data by the HDL protocol
BW3 burst waveform	Transfers of traffic data by the LDL protocol
BW4 burst waveform	LDL acknowledgment