Preliminary testing of a method for local correction of monthly average ionospheric model for current situation: basing on data from single-frequency GNSS receivers

Autor:	Viktor I. Sazhin, Sergey N. Kolesnik, Vladimir E. Unuchkov, Aleksey S. Timofeev
Rok vydání:	2019
Předmět:	Current (mathematics) Similarity (geometry) Total electron content Critical frequency GNSS applications Satellite navigation Ionosphere Space (mathematics) Geodesy Mathematics
Zdroj:	25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics.
DOI:	10.1117/12.2540076
Popis:	Critical frequencies specified by the IRI model are determined for a given hour at two closely adjacent space points. A correction parameter is differences between pseudo-distances of signals from a pair of navigation satellites, recorded by a single-frequency receiver. We compare the differences calculated from measurements of the total electron content at frequency correction points and from the model with fitting of critical frequencies at these points. It is shown that in most cases the similarity between model and experimental values of the pseudo-distances difference exists when critical frequency variations do not exceed 30%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::59af35118bbc46a1eae22c824e89b3c5 https://doi.org/10.1117/12.2540076 Zobrazit plný text záznamu