Author： Bakhmet’eva N. Belikovich V. Vyakhirev V. Frolov V. Kalinina E.
Publisher： Springer Publishing Company
ISSN： 0033-8443
Source： Radiophysics and Quantum Electronics, Vol.53, Iss.5-6, 2010-11, pp. : 305-320
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Abstract
We present the results of the experiments on studying the mechanism of the appearance of artificial disturbances at the altitudes of the E region when a high-power wave is reflected in the ionospheric F layer. The ionosphere was disturbed for a few minutes by a high-power o-mode radio wave radiated by the transmitters of the “Sura” facility at frequencies 4.3 or 4.7 MHz. The disturbed region was sounded using a partial-reflection setup at a frequency of 2.95 MHz. The influence of the artificial disturbance on the probing signal at altitudes lower than the height of reflection of a high-power wave at 40–100 km was recorded on the basis of measurements of the altitude–time characteristics of the probing-signal amplitude. Possible mechanisms of the influence of the disturbance in the lower ionosphere on the probing radio waves are discussed.
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