Review of results of HF scattering by artificial ionospheric turbulence obtained with UTR-2 radio telescope.

Autor: Avdeev, V., Belei, V., Belenov, A., Galushko, V., Erukhimov, L., Myasnikov, E., Ponomarenko, P., Sergeev, E., Sinitsyn, V., Yampol'skii, Yu., Yarygin, A.
Zdroj: Radiophysics & Quantum Electronics; 1994, Vol. 37 Issue 4, p299-307, 9p
Abstrakt: The results of bistatic-radar and transillumination studies of the F-layer under the influence of powerful radio waves (Sura heating facility, Nizhny Novgorod) are presented. A highly directional receiving antenna (UTR-2, Kharkov) made it possible to detect and interpret a number of fine-structure characteristics of the Doppler spectrum of a signal scattered by a heated region. It is shown that, in addition to regular drift, there exists relative ordered motion of inhomogeneities in a perturbed region. The relative velocity is estimated. Deformation of the spectrum of a scattered signal in the states of development and relaxation is established and studied, and possible mechanisms of this phenomenon are discussed. Quasi-periodic variations of the amplitude and frequency of a scattered signal with periods of 30 sec to 5 min are detected. A comparison is made with the results of simultaneous radio transillumination of a heated region by signals from the point source Cassiopeia. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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