Accession Number : AD0682406

Title :   A METHOD OF INVESTIGATING RADIO-WAVE PROPAGATION IN AN INHOMOGENEOUS MAGNETOACTIVE IONOSPHERE,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kazantsev,A. N. ; Lukin,D. S. ; Spiridonov,Yu. G.

Report Date : 02 JUL 1968

Pagination or Media Count : 15

Abstract : An optical geometry method is proposed for investigating radio-wave propagation. This method is based on the solution of ordinary differential equations systems of the first order describing ray trajectories in the three-dimensional inhomogeneous magneto-active ionosphere A derivation of systems is given for ordinary differential equations of the first order, on the basis of which expressions are obtained in the approximation of optical geometry for the time-averaged quadratic field intensity of a spheroidal wave (point source), flat wave, and a wave packet. The formulas derived by this method for the time-averaged square of field intensity coincide with the first expansion term of the asymptotic solution of the multidimensional scalar wave equation into a uniformly converging series. The theory developed in this work may be applied for investigating radio-wave propagation in an inhomogeneous magneto-active ionosphere; for calculating the field intensity of the radio waves emitted by artificial earth satellites; for calculating the trajectories and delay time of whistling atmospherics for study of the refraction and the Doppler frequency shift in the ionosphere (also in the troposphere) and for the solution of other problems. (Author)

Descriptors :   (*IONOSPHERIC PROPAGATION, DIFFERENTIAL EQUATIONS), DOPPLER EFFECT, PROPAGATION, INTENSITY, REFRACTION, USSR

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE