| FDTD模拟SLFELF水平电偶极子在非均匀地-电离层波导中的场 |
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| 引用本文： | 董慧,闫玉波,李清亮. FDTD模拟SLFELF水平电偶极子在非均匀地-电离层波导中的场[J]. 电波科学学报, 2010, 25(2) |
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| 作者姓名： | 董慧 闫玉波 李清亮 |
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| 作者单位： | 中国电波传播研究所青岛分所,山东青岛,266107;中国电波传播研究所青岛分所,山东青岛,266107;中国电波传播研究所青岛分所,山东青岛,266107 |
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| 摘 要： | 在SLF/ELF频段,已有的解析算法对于研究其在非均匀电离层模型下的电磁特性有很大的局限性。采用三维球坐标时域有限差分方法(FDTD)计算了非均匀电离层模型下(考虑电离层白天和黑夜不对称),水平电偶极子产生的SLF/ELF波在球形地-电离层腔体中的传播特性。计算了电场分量和磁场分量沿地面随传播距离的变化,以及随方位角的变化。和均匀电离层模型对比,非均匀电离层模型的计算结果更具有实际意义。
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| 关 键 词： | FDTD 水平电偶极子 SLF/ELF |
FDTD analysis of fields excited by horizontal electric dipole in asymmetric earth-ionosphere cavity |
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| DONG Hui YAN Yu-bo LI Qing-liang. FDTD analysis of fields excited by horizontal electric dipole in asymmetric earth-ionosphere cavity[J]. Chinese Journal of Radio Science, 2010, 25(2) |
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| Authors: | DONG Hui YAN Yu-bo LI Qing-liang |
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| Affiliation: | DONG Hui YAN Yu-bo LI Qing-liang(Qingdao Branch,Chinese Research Institute of Radiowave Propagation,Qingdao Sh,ong 266107,China) |
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| Abstract: | The presented theoretical methods have difficulty in studying the SLF/ELF frequency band wave propagation characteristic in asymmetric ionosphere.In this paper,three-dimentional(3-D) finite-differece time-domain(FDTD) technique in spherical coordinate is applied to simulate the propagation of the electromagnetic fields excited by SLF/ELF horizontal electric dipole in spherical earthionosphere guide with asymmetric ionosphere(day-night asymmetry).The propagation characteristic of the electromagnetic wave are... |
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| Keywords: | FDTD horizontal electric dipole SLF/ELF |
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