Abstract
A numerical simulation of single-hop and double-hop propagation of frequency-modulated signals in anisotropic ionospheric plasma is performed on the basis of a numerical solution to a space–time Hamiltonian bicharacteristic system whose unknowns are the components of the wave vector, coordinates, and also the frequency and time. It is assumed that the radiation source is a point one and is located outside the magnetoactive plasma, the frequency modulation of decameter waves is linear, and the amplitude of the magnetic field is constant. A model of a two-layer ionospheric plasma with a wavelike disturbance is considered. The specific features of the departure of the ordinary and extraordinary waves from the plane of propagation, formation of caustics of space–time geometrical-optics rays, and the Doppler frequency shift are analyzed.
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Original Russian Text © A.S. Kryukovskii, D.S. Lukin, D.V. Rastyagaev, Yu.I. Skvortsova, 2015, published in Radiotekhnika i Elektronika, 2015, Vol. 60, No. 10, pp. 1001–1009.
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Kryukovskii, A.S., Lukin, D.S., Rastyagaev, D.V. et al. Mathematical simulation of propagation of frequency-modulated radio waves in ionospheric plasma. J. Commun. Technol. Electron. 60, 1049–1057 (2015). https://doi.org/10.1134/S1064226915100071
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DOI: https://doi.org/10.1134/S1064226915100071