电离层对电磁脉冲传播的影响可以用一个频域的电流密度来描述，在时域则等效为一附加的电流密度和电导率。
Additional current density, which is a function of frequency, can be used to describe the effect of the ionosphere in the process of electromagnetic pulse propagation.
先前基于宏观电磁波(包含大量光子)的实验已经证明，光前驱是光脉冲在传播过程中最快的部分。
Previous experiments based on macroscopic electromagnetic wave propagation (involving lots of photons) have shown that the optical precursor is the fastest part in the propagation of an optical pulse.
电磁通讯是通过电子或电磁信号或脉冲来传播语言，声音，图像，或数据的。
Telecommunication are the transmission of words. sounds. images or data in the form of electronic or electromagnetic signals or impulses.
阐述了雷电电磁脉冲的产生机理、传播途径及对电子设备的危害，并简要说明了其防护措施。
The mechanism of production, path of transmission and damages to the electronic equipments of lightning electromagnetic pulse (LEMP) are analyzed, and the prevention measures are introduced.
文章讨论了电磁波在电介性介质和导电介质中的传播特征和伪脉冲响应。
The authors have discussed propagation character and pseudo-impulse of EM wave in the lossy and dielectric media.
研究非正弦电磁波在损耗介质中传播的理论，对分析隐身技术中脉冲波的吸收等问题有理论指导意义。
Studying the propagation of nonsinusoidal wave in a dissipative medium is theoretically important for analyzing the problems on absorbed pulse waves in hidden techniques.
研究非正弦电磁波在损耗介质中传播的理论，对分析隐身技术中脉冲波的吸收等问题有理论指导意义。
Studying the propagation of nonsinusoidal wave in a dissipative medium is theoretically important for analyzing the problems on absorbed pulse waves in hidden techniques.
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