Transformation of the Spectrum of Scattered Radiation in Randomly Inhomogeneous Absorptive Plasma Layer

摘要

The results obtained show that the angular power distribution of multiple scattered electromagnetic radiation in the layer of collisional turbulent magnetoactive plasma substantially depends on the factors mentioned above, responsible for the asymmetric statement of the problem (oblique wave incidence on the layer and anisotropy of the medium). Each of these factors by itself leads to distortion of the angular spectrum of scattered radiation in comparison with a completely symmetric case with normal incidence on the isotropic chaotic medium. But their mutual action may amplify or weaken the mentioned above effects of the absorption influence on the angular power spectrum. The most interesting conclusion, in our view, is the fact that the action of these factors is mutually compensated in a certain direction and the radiation propagates along this direction as with normal incidence on the isotropic medium. By applying geometrical optics method the condition of such propagation has been found and by numerical simulation the validity of this calculation has been supported. The results obtained might be of interest for specialists developing design distant radio communication systems as well as those for remote sensing of artificial and natural plasma inhomogeneities (of the ionosphere, the solar corona, semi-conductor plasma, etc) by translucence methods.