Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2021. No. 2
ContentsFull text in Russian (pdf)
DOI https://doi.org/10.30898/1684-1719.2021.2.
6UDC 621.396.1
Refined method for determining the spatial correlation interval of the fading in a single-beam decameter radio link
V. P. Pashintsev 1, S. A. Koval 2, D. A. Potyagov 2, A. D. Skorik 3, M. A. Senokosov 1
1 North Caucasus Federal University, Pushkina str., 1, Stavropol, 355017 Russia
2 Military Communications Academy named after the Marshal of the Soviet Union S. M. Budenny, Tikhoretsky prosp., 3, Saint Petersburg, 194064 Russia
3 Russian Institute of Powerful Radio Engineering, 11 line V.O. str., 66, Saint Petersburg, 199178 Russia
The paper was received on February 1, 2021, after correction - on February 10, 2021
Abstract. In this article a refined method have been developed for determining the spatial correlation interval for fading in a decameter radio link with one discrete beam (mode), which are caused by wave diffraction on small-scale ionospheric irregularities. A refined dependence of the spatial correlation interval of fading in a single-beam decameter radio line on the parameters of small-scale ionospheric irregularities, the equivalent length of the radio line and the choice of the operating signal frequency through the value of the root-mean-square deviation of fluctuations of the wave phase front at the output of the inhomogeneous ionosphere is obtained. It is shown that under conditions of disturbances (diffuseness) of the ionosphere, as well as the approach of the operating frequency of the radio line to the maximum applicable frequency, when fluctuations of the phase front of the wave at the output of the ionosphere exceed 1.25 radians, the well-known simplified expression for estimating the interval of spatial correlation of fading can be used in a single-beam decameter radio links with an error of no more than 5%.
Key words: decameter radio link, diffuseness, small-scale ionospheric irregularities, fluctuations of the phase front, diffraction, fading, normalized spatial correlation function, spatial correlation interval.
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For citation:
Pashintsev V.P., Koval S.A., Potyagov D.A., Skorik A.D., Senokosov M.A. Refined method for determining the spatial correlation interval of the fading in a single-beam decameter radio link. Zhurnal Radioelektroniki [Journal of Radio Electronics]. 2021. No.2. https://doi.org/10.30898/1684-1719.2021.2.6 (In Russian)