We present the results of experimental studies of consistent quasi-periodic variations of the geomagnetic-pulsation level and effective Doppler frequency shift of decametric radio waves aspectscattered by artificial field-aligned ionospheric irregularities. For processing of signals, we used a system spectral analysis and a correlation analysis. It is shown that quasi-periodic variations of the effective Doppler frequency shift are caused by geomagnetic-field pulsations with an amplitude of 0.5–1.0 nT and a period of 50–150 s. Estimated amplitudes of the quasi-periodic and aperiodic drift velocities of the ionospheric irregularities appeared close to 5–10 and 15–30 m/s, respectively.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 53, No. 12, pp. 766–785, December 2010.
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Chernogor, L.F., Vertogradov, G.G., Uryadov, V.P. et al. Consistent quasi-periodic variations of the geomagnetic pulsation level and doppler frequency shift of decametric radio waves aspect-scattered by artificial field-aligned ionospheric irregularities. Radiophys Quantum El 53, 688–705 (2011). https://doi.org/10.1007/s11141-011-9262-z
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DOI: https://doi.org/10.1007/s11141-011-9262-z