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首页> 外文会议>2019 Russian Open Conference on Radio Wave Propagation >Diffraction-Beam Theory of HF Radio Waves Propagation in The Description of Ionospheric Layers Translucency Effect
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Diffraction-Beam Theory of HF Radio Waves Propagation in The Description of Ionospheric Layers Translucency Effect

机译：描述电离层半透明效应的高频无线电波的衍射束理论

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摘要

The formulas for the wave field uniform asymptotic description are proposed in the case when a quasi-plane radio wave falls on a smooth-heterogeneous plasma layer and the conditions of critical reflection from the layer in the geometric-optical approximation are met. These formulas allow us to describe the effect of translucency of the plasma layer and to estimate the ranges of the model problem parameters variations, when this effect is significant for the wave field structure determination. The algorithm of accounting for the effect of the ionospheric layers translucency is considered in the framework of diffraction-beam theory of short radio waves propagation, using the corresponding special functions to describe the wave field in peculiar areas along with simple formulas of the geometric optical approximation. It is shown that the effect of the ionospheric layer translucency can be described as a superposition of effective reflected and incident (transmitted) waves when the uniform asymptotic formulas for effective reflection and transmission coefficients for the quasi-plane wave are used.
机译：当准平面无线电波落在光滑非均质等离子体层上并且满足几何光学近似条件下来自该层的临界反射条件时，提出了波场均匀渐近描述的公式。这些公式使我们能够描述等离子层的半透明效果，并估计模型问题参数变化的范围，当这种效果对于确定波场结构很重要时。在短无线电波传播的衍射束理论的框架内考虑了考虑电离层透明性影响的算法，使用相应的特殊功能描述特殊区域中的波场以及简单的几何光学近似公式。结果表明，使用准平面波的有效反射系数和透射系数的统一渐近公式时，电离层透明性的影响可以描述为有效反射波和入射（透射）波的叠加。

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