Zhurnal Radioelektroniki - Journal of Radio Electronics. ISSN 1689-1719. 2020. No. 4
Full text in Russian (pdf)
Approximate Calculations of Falling from Above Whistler Wave Passage Characteristics for a Sharp Boundary Ionospheric Model
A. V. Moshkov
Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Mokhovaya 11-7, Moscow 125009, Russia
The paper is received on April 5, 2020
Abstract. It is well known that in order to carry out active low-frequency wave experiments in the ionosphere, it is necessary to have an effective powerful source of such waves. It may be a subpolar ground-based modulated powerful short-wave transmitter as HAARP station (Alaska), or an onboard low-frequency transmitter etc. Now we can make relatively simple realistic estimations of a field strength of such low-frequency waves in the ionosphere. However, in order to obtain the same simple estimates of the magnitude of the field at the earth surface, we must calculate a value of the coefficient of passage of the low-frequency wave through the lower ionosphere. Typically, such calculations require a numerical full-wave method. This article shows that using of a simple model of the homogeneous ionosphere with sharp boundary allows us to obtain simple analytical estimates of the field strength of whistler mode waves that pass through the lower ionosphere from above. This allows a wave power transmission coefficient value to be obtained. These results are compared with the corresponding results of numerical integration of wave equations. A satisfactory match for the modulation frequency interval of HAARP was found.
Key words: lower ionosphere, sharp boundary model, whistler wave, transmission coefficients.
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Moshkov A.V. Approximate calculations of falling from above whistler wave passage characteristics for a sharp boundary ionospheric model. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2020. No. 4. Available at http://jre.cplire.ru/jre/apr20/10/text.pdf. DOI 10.30898/1684-1719.2020.4.10