Lightning current models' characteristics based on continuous wavelet transform

The analysis and simulation of two typical lightning current models by continuous wavelet transform (CWT) were given in the paper. The results compared with traditional Fourier transformation showed that the two-dimensional gray image obtained by CWT could get the information of time and frequency of the lightning current models' signals. Further more, the corresponding spectral characteristics of the lightning current models' signals were investigated. And theoretical basics for further analysis of lightning current models' characteristics were provided.