A different approach to the analysis of GPS scintillation data
Author(s) -
Biagio Forte,
S. M. Radicella,
R.G. Ezquer
Publication year - 2009
Publication title -
annals of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 60
eISSN - 2037-416X
pISSN - 1593-5213
DOI - 10.4401/ag-3522
Subject(s) - global positioning system , scintillation , interplanetary scintillation , geodesy , grid , ionosphere , gnss applications , gnss augmentation , satellite , remote sensing , precise point positioning , vtec , computer science , geology , physics , telecommunications , detector , geophysics , biochemistry , chemistry , coronal mass ejection , escherichia coli , quantum mechanics , astronomy , magnetic field , solar wind , gene
Amplitude scintillation data from GPS were analyzed. The objective is to estimate the impact of ionospheric scintillations at Satellite Based Augmentation Systems Ranging and Integrity Monitoring Station (SBAS RIMS) level and at GPS user level. For this purpose, a new approach to the problem was considered. Data were studied from the point of view of the impact of scintillations on the calculation of VTEC at pierce points and ionospheric grid points. An ionospheric grid of 5° 5° surface squares was assumed. From geometrical considerations and
taking into account the basic principle to compute VTEC at grid points, with the data analyzed it is shown that scintillations very seldom affect the calculation of a grid point VTEC. Data from all the RIMS and for the entire GPS satellites network must be analyzed simultaneously to describe a realistic scenario for the impact of scintillations on SBAS. Finally, GPS scintillation data were analyzed at user level: service availability problems were encountered
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