| Abstract: | We present results of preliminary studies aimed at detection of weak ionospheric disturbances induced by acoustic emission
of a ground-based controlled transmitter. Radio astronomical and radiophysical facilities based on the decameter radio telescope
URAN-3 were used in these experiments. Three methods were applied in this study: occultation of the disturbed region by radio
emission from discrete cosmic sources, scattering of sounding radio waves from the perturbed ionospheric region, and weakly-oblique
sounding of the ionosphere. It is shown that the parameters of transmitted, scattered, and reflected signals are well correlated
with the parameters of the acoustic radiation, and that the weak ionospheric disturbances detected in our experiments are
actually induced by the acoustic radiation.
G. V. Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Khar'kov, Ukraine. Translated
from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 42, No. 8, pp. 785–798, August 1999. |
