East-Siberian Center for the Earth's Ionosphere Research (SDC ESCEIR)
Institute of Solar-Terrestial Physics SB RASUpper Atmosphere Physics and Radiowave Propagation Department
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Дата изменения: Sat Jun 2 09:37:30 2001 Дата индексирования: Sun Dec 23 08:47:18 2007 Кодировка: Поисковые слова: р п р п р п р р п п р п п р п п р п п р п п р п п р п п р п п р п п р п п р п п р п п р п п р п п р п п р п п р п |
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SHAREABLE DATA CENTER
East-Siberian Center for the Earth's Ionosphere Research (SDC ESCEIR)Institute of Solar-Terrestial Physics SB RASUpper Atmosphere Physics and Radiowave Propagation Department |
Composition
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Mathematical modelling and information support subdivisionBack-scattering ionospheric sounding data operative diagnosticsThe on-line diagnostics of the SW channel characteristics operative through back-scattering ionospheric sounding (BSS) is based on adiabatic relations of diagnostic signal characteristics and channel in operation under ionospheric parameter variations (Kurkin V.I, Nosov V.E., Ponomartchuk S.N.et. al. SW radiochannel operative dignostics. //Issledovaniya po geomagnitesmu,aeronomii i phisike Solntsa. M.: Nauka, 1994. Vyp.100. P.174-196). The SW channel characteristics calculation functional diagram from BSS data is presented in the figure. After radio path selection, the operator can select an appropriate ionogram with the sounding elevation along the radio path direction from the BSS ionograms catalogue. Long-run prediction distance-frequency characteristics (DFC) results of OS BSS are calculated preliminarily and stored in the results processing database. After the BSS ionogram processing we carry out a full BSS DFC restoration and real back-scattering modes calculation. After that, we restore real OS DFC and carry out an SW radiochannel characteristics calculation. |