Linear electromagneticwave interaction in an inhomogeneous magnetically active plasma
Abstract
An asymptotic method is outlined which makes it possible to divide the initial equations for fields in a planestratified plasma into two independent systems, each of which describes different types of wave propagating in one direction. The coefficients of the equations obtained are found to be regular at points where the normalwave refractive indices are equal. The equations are used to analyze a specific type of interaction which has been considered in connection with studies of LF waves in the ionosphere. A referencesystem technique is employed to obtain a solution which describes the field in the interaction region but transforms into the geometricaloptics solution outside that region. The wave transformation coefficients are compared with those obtained by the phaseintegral method.
 Publication:

Radiofizika
 Pub Date:
 1978
 Bibcode:
 1978RaF....21.1563B
 Keywords:

 Asymptotic Methods;
 Ionospheric Propagation;
 Low Frequencies;
 Magnetoactivity;
 PlasmaElectromagnetic Interaction;
 Wave Interaction;
 Magnetic Effects;
 Magnetoionics;
 Matrices (Mathematics);
 Nonuniform Plasmas;
 Rarefied Plasmas;
 Wave Equations;
 Wave Propagation;
 Geophysics