Geodesic
Multidimensional free interpolation framework for high-precision modeling of slant total electron contents in mid-latitude and equatorial regions
Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika, Tome 11 (2018) no. 6, pp. 781-791

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Standard models of ionospheric delays have errors of order 1–8 TECU (standard total electron content units). On the basis of the free interpolation framework we propose a new simple model of the slant TEC distributions approximating slant TEC distributions obtained from the three-dimensional ionospheric models NeQuick2 and IRI-2016 with RMS error $$ 0.05 TECU. The proposed model was tested for varios positions of receivers in mid-latitude and equatorial regions. Stability of the coefficients of the model with respect to the position of the receiver and time is substantiated.
Keywords: ionosphere, GPS, machine learning.
Mots-clés : total electron content, GLONASS, interpolation 
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     author = {Sergey P. Tsarev and Valery V. Denisenko and Marat M. Valikhanov},
     title = {Multidimensional free interpolation framework for high-precision modeling of slant total electron contents in mid-latitude and equatorial regions},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
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     number = {6},
     year = {2018},
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     url = {http://geodesic.mathdoc.fr/item/JSFU_2018_11_6_a13/}
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Sergey P. Tsarev; Valery V. Denisenko; Marat M. Valikhanov. Multidimensional free interpolation framework for high-precision modeling of slant total electron contents in mid-latitude and equatorial regions. Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika, Tome 11 (2018) no. 6, pp. 781-791. http://geodesic.mathdoc.fr/item/JSFU_2018_11_6_a13/