Spatial distribution of the demodulated low-frequency field in the low-latitude perturbed ionosphere


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Abstract

Features of propagation of low-frequency electromagnetic waves in the low-latitude ionosphere are considered in the case when such waves are generated by means of demodulation of the radiation of a high-power short-wave ground transmitter in the lower ionosphere. Calculations are performed in the ray approximation based on a simplified model (developed specially for the case under study) of the anomaly of the low-latitude equatorial electron density. It is demonstrated that latitude gradients of the equatorial anomaly may result in both additional focusing and defocusing of the beam of demodulated low-frequency waves.

About the authors

A. V. Moshkov

Kotel’nikov Institute of Radio Engineering and Electronics

Author for correspondence.
Email: kuza@cplire.ru
Russian Federation, Moscow, 125009

V. N. Pozhidaev

Kotel’nikov Institute of Radio Engineering and Electronics

Email: kuza@cplire.ru
Russian Federation, Moscow, 125009

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