HF radio channel modeling by a waveguide approach
| Autor: | Kurkin V. I., Ilyin N. V., Penzin M. S., Ponomarchuk S. N., Khakhinov V. V. |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Solar-Terrestrial Physics, Vol 9, Iss 4, Pp 83-94 (2023) |
| Druh dokumentu: | article |
| ISSN: | 94202311 2500-0535 |
| DOI: | 10.12737/stp-94202311 |
| Popis: | We present a modified method of HF radio channel modeling based on a waveguide approach. The waveguide approach represents the electromagnetic field of radiation inside the Earth—ionosphere waveguide as an eigenfunction series of a radial boundary problem with impedance conditions on the Earth surface and radiation conditions at infinity. The transfer function of the radio channel is represented as a series of products of angular-operator Green functions, excitation coefficients, and coefficients for receiving individual normal modes. We have obtained a solution of the boundary value problem of determining the eigenfunctions and eigenvalues of the radial operator. The solution can be applied to the frequency range below the ionospheric F-layer critical frequency. We examine algorithms for calculating distance-frequency, frequency-angular, and amplitude characteristics of signals by analyzing and numerically summarizing the series in terms of strongly damped normal modes. |
| Databáze: | Directory of Open Access Journals |
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