We present the results of spectral analysis of temporal variations in the Doppler frequency shift of the ionosphere-reflected signals from a high-frequency vertical ionospheric sounding radar located near the city of Kharkov in the days of exposure of the ionospheric plasma to the high-power radio emission of the Sura facility (Nizhny Novgorod) and in the reference day in the absence of such an exposure. It was established that the spectral characteristics of quasiperiodic variations in the Doppler frequency shift in the range of periods 10–60 min in the days of work of the facility and in the reference day differed significantly. This is considered as evidence in favor of the generation (amplification) of acoustic–gravity waves propagating at the ionospheric altitudes by high-power periodic high-frequency radiation of the Sura facility.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 54, No. 2, pp. 81–96, February 2011.
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Chernogor, L.F., Frolov, V.L., Komrakov, G. et al. Variations in the ionospheric wave perturbation spectrum during periodic heating of the plasma by high-power high-frequency radio waves. Radiophys Quantum El 54, 75–88 (2011). https://doi.org/10.1007/s11141-011-9272-x
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DOI: https://doi.org/10.1007/s11141-011-9272-x