On the Influence of Absorption on the Spatial Spectrum of Radio Waves Propagation in the Polar Ionosphere

Statistical characteristics of scattered radio waves propagating in the terrestrial high-latitude conductive ionosphere are investigated considering diffraction effects applying the modify smooth perturbation method. Polarization coefficients of scattered ordinary and extraordinary waves in the polar region of the terrestrial ionosphere are obtained for the first time. Correlation function and the variances of the phase fluctuations has been derived for arbitrary correlation function of electron density fluctuations. These statistical characteristics include the polarimetric parameters, Hall’s, Pedersen and longitudinal conductivities, anisotropy parameters of elongated plasmonic structures and the velocity of a plasma flow. Numerical calculations are carried out for the anisotropic Gaussian correlation function containing anisotropy factor and the angle of inclination of these irregularities with respect to the lines of forces of a geomagnetic field using the satellite and remote sensing observation data for the polar ionosphere. Diffraction effects becomes important in proportion of distance propagating by a wave in the ionosphere. Spatial power spectrum has a maximum along the direction of an incident wave.