Observations on the Propagation Constant of the EarthIonosphere Waveguide in the Frequency Band 8 c/s to 16 kc/s†
Observations on the Propagation Constant of the EarthIonosphere Waveguide in the Frequency Band 8 c/s to 16 kc/s†
复制标题
地球电离层波导在 8 c/s 至 16 kc/s 频段传播常数的观测†
DOI：
10.1002/rds19661111273
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发表时间：
1966
期刊：
影响因子：
1.6
通讯作者：
R. Challinor
中科院分区：
文献类型：
--
作者：
F. W. Chapman;D. Jones;J. Todd;R. Challinor
本文叙述了最近在伦敦国王学院进行的关于确定电磁波在地球表面传播常数（衰减和相速度）的观测。所采用的实验技术包括使用单站和双站磁记录远距离传播的大气Qspherics（sferics）和观测舒曼共振的频率和Q因子。实验结果解释的波导模式理论的传播假设各种电子和重离子密度分布的电离层。本文的工作与其他工作者在有限的频率范围内的观测结果相一致，并能确定传播常数为8 ~ 16 kc/s。
Recent observations at King's College, London, concerning the determination of the propagation constant (attenuation and phase velocity) of electromagnetic waves over the earth's surface are described. The experimental techniques employed include the use of single-station and two-station magnetic recording of atmQspherics (sferics) propagated over great distances and the observation of the frequencies and Q factors of Schumann resonances. The experimental results are interpreted in terms of the waveguide mode theory of propagation by assuming various electron and heavy ion density profiles for the ionosphere. The present work agrees well with the observations of other workers made over a limited frequency range, and enables the propagation constant to be determined from 8 c/s to 16 kc/s.