两种高空核爆电磁脉冲下电话机的效应异同性及概率分布
Effect of high altitude nuclear electromagnetic pulse upon phone call
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摘要: 利用分布式负载有界波电磁脉冲模拟器提供的电磁环境，试验研究了电话机在我国推荐的1976 HEMP和IEC61000-2-9推荐的1996 HEMP两种波形环境激励下的效应异同性，以及效应的概率分布，应用频谱分析和电磁范数对效应机制进行了分析。结果表明:对于电话机通话中断效应，1996 HEMP要比1976 HEMP的效应阈值稍低，其效应的概率分布可用正态分布来拟合。Abstract: Interrupt effects on telephone excited by high altitude electromagnetic pulse(HEMP) was investigated. Under the electromagnetic environment produced by a bounded-wave EMP simulator, probability distributions of phone call interrupt excited by 1976 HEMP and 1996 HEMP were presented and compared, and frequency spectra and electromagnetic norms were applied to analyse this effect’s mechanism. The results show that the interrupt threshold for 1996 HEMP is slightly lower than that for 1976 HEMP because the former contains more high frequency and both probability distributions can be fitted by normal distribution.
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Key words:
- hemp /
- telephone /
- emp simulator /
- interrupt effect /
- probability distribution
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