吉隆坡加辛山记录的雷击浪涌电流波形的非线性时频分析

2022 IEEE 18th International Colloquium on Signal Processing & Applications (CSPA) Pub Date : 2022-05-12 DOI:10.1109/CSPA55076.2022.9782060

F. Ishiyama, M. Maruyama

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引用次数: 1

摘要

我们正在研究通信设备电磁噪声的对抗技术，并为此开发了一种非线性时频分析方法。将该方法应用于雷击浪涌电流波形分析。这种波形产生高度非线性的暂态时间序列，并揭示了其非线性特性。这些波形的弛豫过程始于一个衰减率极大的振荡区，随后是一个衰减率非线性增加的非振荡区。

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Nonlinear Time-Frequency Analysis of Lightning Strike Surge Current Waveforms Recorded at Gasing Hill, Kuala Lumpur

We are investigating countermeasure technique against electromagnetic noise on telecommunication-related equipment, and we have developed a method of nonlinear time-frequency analysis for the purpose. We applied this method to the analysis of lightning strike surge current waveforms. Such waveforms produce highly nonlinear transient time series, and we have revealed their nonlinear characteristics. The relaxation process of these waveforms begins with an oscillating region with an extremely large decay rate, and is followed by a non-oscillating region with a nonlinearly increasing decay rate.

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2022 IEEE 18th International Colloquium on Signal Processing & Applications (CSPA)

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