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Extension of EGNOS ionospheric correction coverage area

Swiatek A., Stanislawska I., Zbyszynski Z., Dziak-Jankowska B.

Acta Geophysica

2014

Vol. 62, no. 1

259--269

Ionosphere coverage is likely to be a driver for the EGNOS coverage area. Hence, a study considering a dedicated ionosphere algorithm to improve the ionosphere coverage area has been conducted. The logic of the study is the following: the accuracy of the GPS signal depends mainly on the total electron content (TEC). At two close points, TEC changes in time in a very similar way; these are region dependent variables. This correlation decreases with growing distance between the observation points and is anisotropic. Based on TEC variogram analysis, the specific algorithm has been developed. This specific algorithm is presented and discussed.