Scintillation Effects and the Spatial Power Spectrum of Scattered Radio Waves in the Ionospheric F Region

Abstract

Differential equation for two-dimensional spectral function of the phase fluctuation is derived using the modify smooth perturbation method. Second order statistical moments of the phase fluctuations are calculated taking into account polarization coefficients of both ordinary and extraordinary waves in the turbulent collision magnetized plasma and the diffraction effects. Analytical and numerical investigations in the ionospheric F region are based on the anisotropic Gaussian and power law spectral functions of electron density fluctuations including both the field-aligned anisotropy and field-perpendicular anisotropy of the plasma irregularities. Scintillation effects in this region are investigated for the small-scale ionospheric irregularities. The large-scale background plasma structures are responsible for the double-humped shape in the spatial power spectrum taking into account diffraction effects. Numerical calculations are based on the experimental data of the navigation satellites.Â

Statistical Moments and Scintillation Level of Scattered Electromagnetic Waves in the Magnetized Plasma

“…Substituting Equation (19) into Equations (8) and (9) at p = 4 the variance and correlation function of the phase fluctuations are:…”

“…Peculiarities of the second order statistical moments of scattered radiation in the collision magnetized plasma have been investigated in [6] using the ray (-optics) approximation. Statistical characteristics and the scintillation level of scattered ordinary and extraordinary waves in the collision magnetized plasma normal to the external magnetic field have been considered in [7][8][9][10] using modified smooth perturbation method. Analytical and numerical calculations were carried out for both the anisotropic Gaussian and power-law spectral functions assumption taking into account diffraction effects.…”

Polarimetric Parameters of Scattered Radiation in the Magnetized Plasma

“…Statistical moments of small-amplitude electromagnetic waves scattered by turbulent anisotropic plasma slab is important in many practical applications associated with both natural and laboratory plasmas. Angular power spectrum, scintillation effects and the angle-of-arrival of scattered electromagnetic waves by turbulent anisotropic magnetized ionospheric plasma slab for both power-law and anisotropic Gaussian correlation functions of electron density fluctuations were investigated analytically and numerically in [2][3][4].…”

Statistical Moments and Scintillation Level of Scattered Electromagnetic Waves in the Magnetized plasma

“…Peculiarities of the second order statistical moments of scattered radiation in collision magnetized plasma using the ray (-optics) approximation have been investigated in [6]. Statistical characteristics and scintillation level of scattered ordinary and extraordinary waves in the collision magnetized plasma normal to the external magnetic field have been considered in [7][8][9][10] using modify smooth perturbation method. Analytical and numerical calculations were carried out for the anisotropic Gaussian and power-law spectral functions taking into account diffraction effects.…”