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首页> 外文期刊>Telecommunications and Radio Engineering >DISTURBANCES OF LOWER IONOSPHERE ABOVE CENTER OF EARTHQUAKE AND ANOMALY IN THE GLOBAL ELECTROMAGNETIC RESONANCE SIGNAL - PART 1: MODELS OF IONOSPHERE
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DISTURBANCES OF LOWER IONOSPHERE ABOVE CENTER OF EARTHQUAKE AND ANOMALY IN THE GLOBAL ELECTROMAGNETIC RESONANCE SIGNAL - PART 1: MODELS OF IONOSPHERE

机译：全球电磁共振信号中地震中心下层电离层的扰动和异常-第1部分：电离层模型

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摘要

We model an effect on the Schumann resonance signal recorded in Japan of the ionosphere non-uniformity centered above the earthquake at Taiwan. Changes in the resonance spectrum occur due to interference of the direct radio wave with one reflected from the ionosphere modification above the earthquake. The first part addresses the typical models of ELF radio propagation constant and connects this with the vertical profile of atmospheric conductivity. The profile with a knee is analyzed, which is widely used for modeling the Schumann resonance. The four models are included used in literature for obtaining the frequency dependence of complex propagation constant of ELF radio waves. It is assumed that the pre-seismic and seismic activity locally reduces the height of the lower-boundary of the ionosphere above the earthquake. The maximum reduction reaches 20 km, and the symmetric perturbation is described along the radius by the Gauss curve of the scale of 1000 km.
机译：我们以台湾地震为中心，对日本电离层非均匀性对日本舒曼共振信号的影响进行建模。共振频谱的变化是由于直接无线电波与地震上方电离层修改所反射的一个无线电波的干扰而产生的。第一部分介绍了ELF无线电传播常数的典型模型，并将其与大气电导率的垂直剖面联系起来。分析了膝盖的轮廓，该轮廓被广泛用于建模舒曼共振。文献中使用了这四个模型来获得ELF无线电波的复数传播常数的频率依赖性。假定地震前和地震活动局部降低了地震之上电离层下边界的高度。最大减少量达到20 km，并且通过1000 km比例的高斯曲线沿半径描述对称扰动。

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  • 来源
    《Telecommunications and Radio Engineering》 |2015年第11期|1025-1038|共14页
  • 作者

    A.P. Nickolaenko; M. Hayakawa;

  • 作者单位

    A.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine;

    Hayakawa Institute of Seismo Electromagnetics Co. Ltd. The Univercity of Electro-Communications Incubation Center-508 Advanced Wireless Communications Research Center (AWCC) The Univercity of Electro-Communications, 1-5-1 Chofugaoka, Chofu Tokyo 182-8585, Japan;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Schumann resonance; the conductivity of the atmosphere; the ionosphere non-uniformity;

    机译：舒曼共振;大气的电导率;电离层不均匀;
  • 入库时间 2022-08-18 01:09:25

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