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15 December 2021 Dependence between amplitude and frequency characteristics of HF-signals on the background of solar x-ray flares
V. A. Ivanova, M. V. Cedrick, A. V. Podlesnyi, A. I. Poddelsky
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Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 1191686 (2021) https://doi.org/10.1117/12.2603431
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation
Abstract
For ten solar flares of M- and X- classes we study responses in characteristics of HF-signals propagation over three oblique incidence sounding paths. We consider time variations of the lowest observed frequency (LOF) and sums of amplitudes calculated for each ionogram. During studied solar X-rays flares we observe LOF increase and sums of amplitudes decrease. We obtain nonlinear dependence of the sums of amplitudes on LOF.
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V. A. Ivanova, M. V. Cedrick, A. V. Podlesnyi, and A. I. Poddelsky "Dependence between amplitude and frequency characteristics of HF-signals on the background of solar x-ray flares", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 1191686 (15 December 2021); https://doi.org/10.1117/12.2603431
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KEYWORDS
X-rays
Absorption
Signal attenuation
Wave propagation
Radio propagation
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