Deformation of the angular spectrum of scattered radiation in turbulent collision magnetized plasma

Jandieri, G. V.; Gavrilenko, V. G.; Diasamidze, Zhuzhuna; Jandieri, Vakhtang

doi:10.1109/igarss.2003.1294022

Cited by 1 publication

(2 citation statements)

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“…Drift velocity exceeds the velocity of the shape changes of the inhomogeneities themselves. If 0 0 V = we obtain studies given by Jandieri et al [8][9][10]20] .…”

Section: Resultsmentioning

confidence: 95%

“…In the study by Jandieri et al [5][6][7][8][9][10] , peculiarities of the spatial power spectrum (SPS) of radio waves in the polar ionosphere were investigated by applying ray approximation. It has been established that randomly varying electron density and the ambient magnetic field and the anisotropy and dip angle of elongated inhomogeneities relative to the ambient magnetic field may increase the intensity of the frequency fluctuations of propagating radio waves in the terrestrial ionospheric plasma.…”

Section: Introductionmentioning

confidence: 99%

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Statistical Characteristics of the Temporal Spectrum of Scattered Radiation in the Equatorial Ionosphere

Jandieri

Tugushi

2023

j. of environ. & earth. sci.

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On the basis of the solution of the space-time characteristic system by the method of geometric optics using symbolic calculations, analytical and numerical simulation of the propagation of the ordinary and extraordinary radio waves in the conducting equatorial ionospheric plasma was made considering the anisotropy of plasma irregularities and non-stationary nature of propagation medium. Broadening of the spectrum and the displacement of its maximum contain velocity of a turbulent plasma flow and parameters characterizing anisotropic plasmonic structures. Statistical moments of both radio waves do not depend on the absorption sign and are valid for both active and absorptive random media. Temporal pulsations and conductivity of a turbulent ionospheric plasma have an influence on the evaluation of the spectrum-varying propagation distances travelling by these waves. The new double-humped effect in the temporal spectrum has been revealed for the ordinary wave varying anisotropy coefficient and dip angle of stretched plasmonic structures. From a theoretical point of view, the algorithms developed in this work allow effective modelling of the propagation of both radio signals in the equatorial conductive ionospheric plasma, considering the external magnetic field, inhomogeneities of electron density in-homogeneities, as well as non-stationary.

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“…Drift velocity exceeds the velocity of the shape changes of the inhomogeneities themselves. If 0 0 V = we obtain studies given by Jandieri et al [8][9][10]20] .…”

Section: Resultsmentioning

confidence: 95%