Academic Journal of Engineering and Technology Science, 2020, 3(7); doi: 10.25236/AJETS.2020.030719.
Baitong Song, Wu Zhang, Zhou Chen, Hao Ma, Yakang Pei
Nanjing Normal University, Nanjing, Jiangsu China
In this paper, a diagnostic method of conducted EMI noise based on the Infomax-WT algorithm is proposed. Using collected conductive EMI noise samples, several independent noise signals are separated by Infomax. Each noise signal is subjected to wavelet transform to obtain the time-frequency diagram of each noise signal. The noise source is determined according to the frequency characteristic obtained by the time-frequency chart.
electromagnetic compatibility, Infomax algorithm, wavelet transform, conducted interference, noise diagnosis
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