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Model‐assisted ionospheric tomography: A new algorithm
Author(s) -
Raymund T. D.,
Bresler Y.,
Anderson D. N.,
Daniell R. E.
Publication year - 1994
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/94rs01537
Subject(s) - tec , total electron content , ionogram , ionosphere , algorithm , satellite , tomography , computer science , remote sensing , electron density , geodesy , overhead (engineering) , orbit (dynamics) , geology , physics , electron , geophysics , optics , astronomy , engineering , quantum mechanics , aerospace engineering , operating system
Ionospheric tomography uses total electron content (TEC) records collected by longitudinally aligned stations, which receive a beacon satellite orbiting overhead. The electron density distribution is reconstructed for the region bounded by the satellite orbit and the line of ground receivers. A new reconstruction algorithm is described which satisfies the TEC records, makes use of an ionospheric model, and allows the incorporation of complementary measurements. The new algorithm also accepts relative (rather than absolute) TEC as input data. A comparison of the new algorithm and one used recently shows significant improvement over early techniques, particularly when a scaled ionogram is included in the data.