VLF Waveguide Propagation: The Basics
VLF Waveguide Propagation: The Basics
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VLF 波导传播：基础知识
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
K. Lynn
中科院分区：
文献类型：
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作者：
K. Lynn
近年来，研究已转向使用在地球电离层波导中传播的甚低频无线电传输作为各种瞬态地球物理现象的探测器。对此类结果的正确解释关键取决于对被监控路径的传播特性的理解。观察到的影响将根据一天中的时间、路径长度、路径方向、磁纬度和甚低频频率而变化。本文提供了关于中长 VLF 路径的相关传播依赖性的简要教程，最好是根据波导模式理论来理解，以及以前未发表、未在公开科学文献中发表或其重要性尚未被认识到的结果。
In recent times, research has moved towards using VLF radio transmissions propagating in the earth‐ionosphere waveguide as a detector of a variety of transient geophysical phenomena. A correct interpretation of such results depends critically on understanding the propagation characteristics of the path being monitored. The observed effects will vary depending on time of day, path length, path orientation, magnetic latitude and VLF frequency. This paper provides a brief tutorial of the relevant propagation dependencies for medium to long VLF paths best understood in terms of waveguide mode theory together with results either not previously published, not published in the open scientific literature or whose significance has been little recognised.