电磁脉冲在非均匀等离子体介质中的传播

2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Pub Date : 2009-12-18 DOI:10.1109/MAPE.2009.5355954

Ning Fang, W. Baofa

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引用次数: 1

摘要

分析了电子密度分布对电磁脉冲通过非均匀等离子体区波形的影响。假设电子密度沿与等离子体界面垂直方向变化，采用WKB方法在频域计算等离子体区域的传递函数，并采用快速傅立叶变换算法在时域获得传输信号波形的畸变。最后，将携带高斯脉冲包络信号的平面波作为入射脉冲，研究了透射波的特性，并对三种不同等离子体分布进行了对比分析。

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Propagation of the electromagnetic pulse through inhomogeneous plasma medium

The effect of electron density distribution on the waveform of an electromagnetic pulse through an inhomogeneous plasma region is analyzed. Assuming the electron density is assumed to vary in the direction normal to the plasma interface, WKB method is used to compute the transfer function of the plasma region in frequency domain and the fast Fourier transform algorithm is applied to obtain the distortion of the transmission signal waveforms in time domain. At last, the plane wave carrying a Gaussian pulse envelope signal is considered as the incident pulse, the characteristics of the transmission wave was investigated and the comparison was analyzed for three different plasma distributions.

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2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications

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