Fig. 9
From: Multi-Scale simulation of electromagnetic wave excitation by positive corona discharge in SF6 gas

Spectrogram of EM waves corresponding to (a) complete signal. (b) rising stage. (c) falling stage. (d) stabilization stage.
From: Multi-Scale simulation of electromagnetic wave excitation by positive corona discharge in SF6 gas
Spectrogram of EM waves corresponding to (a) complete signal. (b) rising stage. (c) falling stage. (d) stabilization stage.