Abstract

In view of the popularity of using empirical models in implementing SW radio communication at long distances and in problems of target detection, it became necessary to adapt these models to the real state of the ionosphere so that these models could be used in operational work. It is proposed to adapt the IRI model by optimizing the values of the global ionospheric index and the number of solar spots, i.e., the parameters used in the model when calculating the height distribution of electron concentration in the ionosphere, with the involvement of oblique incidence backscatter sounding data. The problem regarding the correctness of the adaptation problem was considered under some restrictions. An estimate of the adaptation error has been obtained.

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