Abstract
Numerical calculations are made of the duration of large-scale fading of electromagnetic waves with frequencies of 1–10 kHz as they pass through a flat inhomogeneous layer of the lower ionosphere in the presence of a strong local perturbation of the atmosphere. A model of a perturbation in the form of a point energy source is used. It has been found that the model parameters depend on only two initial quantities: altitude h0 and the energy. It is shown that, at h0 < 50 km, the fade duration does not exceed 2 min; as h0 increases above a certain critical value, the horizontal size of the perturbation decreases significantly, which leads to a decrease in the decay time of radio waves to tens of seconds at h0 > 80 km.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
M. I. Beloglazov and G. F. Remenets, Distribution of Superlong Radio Waves in High Latitudes (Nauka, Leningrad, 1982).
R. A. Helliwell, J. P. Katsufrakis, and M. Trimpi, J. Geophys. Res. 78 (22), 4679 (1973).
V. A. Bronshten, Physics of the Meteoric Phenomena (Nauka, Moscow, 1981).
A. V. Moshkov and V. N. Pozhidaev, J. Commun. Technol. Electron. 58, 277 (2019).
G. I. Makarov and V. V. Novikov, Usp. Fiz. Nauk 98, 733 (1969).
G. I. Makarov and L. A. Fedorova, Izv. Vyssh. Uchebn. Zaved. Radiofiz. 25, 1384 (1982).
K. Davies, Ionospheric Radio Waves (IEE, London, 1989; Mir, Moscow, 1973).
A. V. Moshkov and V. N. Pozhidaev, J. Commun. Technol. Electron. 65, 472 (2020).
GOST 4401-81. Standard Atmosphere. Parameters (IPK Izd. Standartov, Moscow, 2004).
M. N. Fatkullin, T. I. Zelenova, V. K. Kozlov, et al., Empirical Models of the Midlatitude Ionosphere (Nauka, Moscow, 1981) [in Russian].
L. W. Poulsen, “Modeling of Very Low Frequency Wave Propagation and Scattering within the Earth-Ionosphere Waveguide in the Presence of Lower Ionospheric Disturbances,” PD Thesis Space, Telecommunications and Radioscience Lab. (Stanford Univ., Stanford, 1991). https://vlfstanford.ku.edu.tr/wp-content/ uploads/2010/07/PoulsenThesis.pdf.
Funding
This work was supported within a state assignment on topic no. 0030-2019-0006.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The author declares that he has no conflicts of interest.
Additional information
Translated by E. Chernokozhin
Rights and permissions
About this article
Cite this article
Moshkov, A.V. Estimation of the Fade Duration of Low-Frequency Radio Waves in the Earth–Ionosphere Waveguide under the Action of a Strong Local Perturbation in the Atmosphere. J. Commun. Technol. Electron. 67, 1374–1378 (2022). https://doi.org/10.1134/S1064226922110109
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1064226922110109