HF beam parameters in ELF/VLF wave generation via modulated heating of the ionosphere

M. B. Cohen; M. Golkowski; N. G. LehtinenU. S. InanM. J. McCarrick

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HF beam parameters in ELF/VLF wave generation via modulated heating of the ionosphere

机译：高频梁参数在精灵/甚低频波代通过调制的电离层加热

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ELF/VLF (0.3-30 kHz) wave generation is achievable via modulated HF (3-30 MHz) heating of the lower ionosphere in the presence of natural currents such as the auroral electrojet. Using the 3.6 MW High Frequency Active Auroral Research Program (HAARP) facility near Gakona, AK, we investigate the effect of HF frequency and beam size on the generated ELFNLF amplitudes, as a function of modulation frequency, and find that generation in the Earth-ionosphere waveguide generally decreases with increasing HF frequency between 2.75-9.50 MHz. HAARP is also capable of spreading the HF power over a wider area, and we find that a larger beam area yields larger generated amplitudes on the ground. Measurements are shown to generally agree with a theoretical model, which is then applied to also predict the effect of HF beam parameters on magnetospheric injection with HAARP.

机译：精灵/甚低频(0.3 -30 kHz)波代是可以实现的通过调制高频(3-30 MHz)加热的低电离层的自然水流如极光电喷流。高频率活动极光研究计划正义与发展党(HAARP)设施附近),我们调查高频频率和梁的影响的大小生成ELFNLF振幅的函数调制频率,发现一代Earth-ionosphere波导一般随增加高频频率之间2.75 - -9.50 MHz。高频功率在一个更广泛的区域,我们发现更大的梁地区产量较大的生成振幅在地上。普遍认同的理论模型,然后还应用于预测效果吗高频光束参数对磁性层的注入与HAARP。

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《Journal of Geophysical Research, A. Space Physics: JGR》 |2012年第5期|A05327:1-A05327:10|共10页
作者
M. B. Cohen; M. Golkowski; N. G. LehtinenU. S. InanM. J. McCarrick;
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作者单位

Advanced Technologies, Marsh Creek LLC, Washington, DC, USA;

Department of Electrical Engineering, Stanford University, Stanford, California, USA;

Department of Electrical Engineering, University of Colorado Denver, Denver, Colorado, USA;

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原文格式 PDF
正文语种英语
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关键词
lower ionosphere; Wave generation; Theoretical Modelsbeam parameterFrequency functionbeam area;

机译：低电离层;波生成理论Modelsbeam parameterFrequency functionbeam区域;

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机译：HaaRp HF加热器激发的多跳惠斯勒模式ELF / VLF信号和触发辐射

HF beam parameters in ELF/VLF wave generation via modulated heating of the ionosphere

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