Abstract
AbstractBy heating the ionosphere with ELF/VLF‐modulated high‐power HF wave, a virtual antenna is produced in the ionosphere, which is an effective means to launch ELF/VLF waves. This paper uses the modulated‐heating models of Wang Feng [2009] to calculate the strength of the LF radiation source produced by HF heating, and analyzes attenuation and reflection of the LF wave transmitting downward using full‐wave algorithm. With HAARP experiment parameter, this work simulates magnetic field of the LF signals on the sea, which is of PT order of magnitude, consistent with the experimental data.
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